研究成果 Publications

Jun-Hao Yu, Shotaro Yoshikawa, Qian-Rui Huang, Keisuke Hirata, Daniel M. Neumark, Jer-Lai Kuo, Shun-ichi Ishiuchi (2026). Revealing Spectral Characteristics of Shared Protons in Deprotonated Glutamic Acid Using Cryogenic Ion Trap Spectroscopy and Anharmonic Calculations. The Journal of Physical Chemistry Letters.

Ryu Sakuma, Keisuke Hirata, James M. Lisy, Masaaki Fujii, Shun-ichi Ishiuchi (2026). Spectroscopic Tracking of Size Selectivity in Crown Ethers: A Unified Molecular Picture of Encapsulation. Journal of the American Chemical Society, 148(32), 34209-34218.

Kenee Kaiser Suyo Custodio, Temma Yazawa, Huu Trong Phan, Asato Okada, Tomonori Izu, Keisuke Hirata, Shun-ichi Ishiuchi, Jer-Lai Kuo (2026). Conformational landscapes of alkali metalated N -acetylhexosamines: insights from machine learning-assisted ab initio methods and validated by cryogenic infrared photodissociation spectroscopy. Physical Chemistry Chemical Physics, 28(34), 20636-20646.

Sotaro Ohara, Temma Yazawa, Keisuke Hirata, Jun-Hao Yu, Qian-Rui Huang, Jer-Lai Kuo, Gilles Grégoire, Masaaki Fujii, Otto Dopfer, Shun-ichi Ishiuchi (2026). Direct Evidence of Photoinduced Protonation-Site Switching in Flavins. Journal of the American Chemical Society, 148(34), 36640-36647.

Keisuke Hirata, James M. Lisy, Masaaki Fujii, Shun-ichi Ishiuchi (2026). Probing hydration-driven ion recognition using cryogenic ion trap infrared spectroscopy. Physical Chemistry Chemical Physics, 28(25), 15057-15069.

Shunsuke Kamioka, Kien X. Vo, Keisuke Hirata, Ryosuke Ito, Keijiro Ohshimo, James M. Lisy, Masaaki Fujii, Shun-ichi Ishiuchi, Fuminori Misaizu (2026). Stacked Sandwich-type Beauvericin Complex Revealed by Cryogenic Ion Mobility and Infrared Spectroscopy: Insight into Selective Transport Mechanism of Ca 2+ Ion. The Journal of Physical Chemistry Letters, 17(27), 7582-7589.

Taisei Takahashi, Keisuke Hirata, Shun-ichi Ishiuchi (2026). Metal-Ion–Monosaccharide Interactions: Selective Formation of a Specific Coordination Motif in Carbohydrate Recognition. The Journal of Physical Chemistry Letters, 17(21), 5959-5964.

Keisuke Hirata, Ken-ichi Kasai, Masaaki Fujii, Gilles Grégoire, Shun-ichi Ishiuchi (2025). Infrared and Ultraviolet Spectra of the Monohydrated N -Methyl-Dopamine–Methylation Effect on Structure and Excited State Dynamics. The Journal of Physical Chemistry A, 130(1), 80-87.

Sotaro Ohara, Keisuke Hirata, Gilles Grégoire, Masaaki Fujii, Otto Dopfer, Shun-ichi Ishiuchi (2025). Probing the Triplet State by Cryogenic Ion Trap IR Spectroscopy─Application to Protonated Lumiflavin. The Journal of Physical Chemistry Letters, 16(49), 12514-12519.

Yuika Okura, Garrett D. Santis, Xiao-Fei Gao, Wenjin Cao, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii, Xue-Bin Wang, Sotiris S. Xantheas (2025). The Deprotonation Sites of Gas Phase Uridine and Pseudouridine: Implications for mRNA Vaccines. The Journal of Physical Chemistry Letters, 16(42), 10945-10951.

Satoru Tanabe, Keisuke Hirata, Koichi Tsukiyama, James M. Lisy, Masaaki Fujii, Shun-ichi Ishiuchi (2025). Is Tl+ an Analogue of K+? IR Spectroscopy of Tl+ and a Key Peptide of the Selectivity Filter in K+ Channels. The Journal of Physical Chemistry Letters, 16(33), 8621-8626.

Kien X. Vo, Keisuke Hirata, James M. Lisy, Masaaki Fujii, Shun-ichi Ishiuchi (2025). The Path from Sequestration to Hydration: Why Na+ Takes a Unique Route with the Ionophore, Beauvericin. The Journal of Physical Chemistry A, 129(35), 8101-8109.

Sotaro Ohara, Keisuke Hirata, Gilles Grégoire, Masaaki Fujii, Otto Dopfer, Shun-ichi Ishiuchi (2025). Optical and Infrared Spectroscopy of Lumiflavin Protomers in a Cryogenic Ion Trap. The Journal of Physical Chemistry A, 129(24), 5245-5250.

Ana D. Parejo Vidal, Yuika Okura, Keisuke Hirata, Vijay Madhav Miriyala, Pavel Hobza, Shun-ichi Ishiuchi, Masaaki Fujii, Mattanjah S. de Vries (2025). i-Motif DNA in isolated hemiprotonated cytosine dimers, studied using IR spectroscopy and theoretical calculations. Physical Chemistry Chemical Physics, 27(19), 9980-9990.

Yuika Okura, Madisen N. Hallsten, Garrett D. Santis, Keisuke Hirata, Masaaki Fujii, Shun-Ichi Ishiuchi, Sotiris S. Xantheas (2025). The Nicotine–Tryptophan Dimer: Probing the Principal Interaction of Nicotine with the Nicotinic Acetylcholine Receptor (nAChR), the Binding Pocket in the Human Brain. Journal of the American Chemical Society, 147(17), 14043-14047.

Kien Xuan Vo, Keisuke Hirata, Bruno Martínez-Haya, Jos Oomens, Shun-ichi Ishiuchi, Masaaki Fujii, Anne Zehnacker (2024). Enantioselective complexation of protonated tyrosine by a chiral crown‐ether: the nature of the Hydrogen bonds makes the difference.. ChemPhysChem, 26(5), e202400880.

Ryu Sakuma, Keisuke Hirata, James M. Lisy, Masaaki Fujii, Shun-ichi Ishiuchi (2024). Unbuckling the 18-Crown-6 Ether Belt Around Metal Ions: Forging the Connection to the Condensed Phase. Journal of the American Chemical Society, 147(1), 45-50.

Kien X. Vo, Keisuke Hirata, James M. Lisy, Masaaki Fujii, Shun-ichi Ishiuchi (2024). Releasing Preferentially Sequestered Na+ from Its Confinement by Beauvericin: A Single Water Molecule is the Accomplice. The Journal of Physical Chemistry A, 128(42), 9159-9166.

Jean-Xavier Bardaud, Yurika Hayakawa, Hikaru Takayanagi, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii, Eric Gloaguen (2024). Water-Induced Dissociative Mechanism of Carboxylate and Divalent Calcium Ions Revealed by IR Laser Spectroscopy. The Journal of Physical Chemistry Letters, 15(36), 9295-9300.

Hideo Toma, Jun-ichi Tabata, Keisuke Hirata, Gilles Gregoire, Masaaki Fujii, Shun-ichi Ishiuchi (2024). Micro Solvation Effect of Methanol on Excited-State Dynamics of Protonated Tryptophan and Dopamine. The Journal of Physical Chemistry A, 128(30), 6208-6215.

Yuika Okura, Garrett D. Santis, Keisuke Hirata, Sotiris S. Xantheas, Masaaki Fujii, Shun-ichi Ishiuchi (2024). The Gas Phase Protonation Sites of Six Naturally Occurring Nicotinoids. The Journal of Physical Chemistry Letters, 15(27), 6966-6973.

Garrett D. Santis, Yuika Okura, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii, Sotiris S. Xantheas (2024). Affinity of Nicotinoids to a Model Nicotinic Acetylcholine Receptor (nAChR) Binding Pocket in the Human Brain. The Journal of Physical Chemistry B, 128(19), 4577-4589.

Keisuke Hirata, Kyota Akasaka, Otto Dopfer, Shun-ichi Ishiuchi, Masaaki Fujii (2024). Transition from vehicle to Grotthuss proton transfer in a nanosized flask: Cryogenic ion spectroscopy of protonated p-aminobenzoic acid solvated with D2O. Chemical Science, 15(8), 2725-2730.

Yuika Okura, Garrett D. Santis, Keisuke Hirata, Vasilios S. Melissas, Shun-ichi Ishiuchi, Masaaki Fujii, Sotiris S. Xantheas (2024). Switching of Protonation Sites in Hydrated Nicotine via a Grotthuss Mechanism. Journal of the American Chemical Society, 146(5), 3023-3030.

Hironari Nagasawa, Sakuya Ogawa, Wataru Kashihara, Tasuku Isozaki, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii, Tadashi Suzuki (2024). Conformational preference of 2-(4-methoxyphenyl)ethanol studied by supersonic jet spectroscopy: Intramolecular OH/π interaction. The Journal of Chemical Physics, 160(2), 024303.

Mitsuhiko Miyazaki, Megumi Ono, Remina Otsuka, Otto Dopfer, Masaaki Fujii (2023). Electronic and vibrational spectroscopies of aromatic clusters with He in a supersonic jet: The case of neutral and cationic phenol–He3 (n = 1 and 2). The Journal of Chemical Physics, 159(13), 134303.

Kien X. Vo, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii (2023). Infrared Spectra of Beauvericin-Alkaline Earth Metal Ion Complexes─Ion Preference to Physiological Ions. The Journal of Physical Chemistry A, 127(34), 7115-7120.

Hikaru Takayanagi, Jean-Xavier Bardaud, Keisuke Hirata, Valérie Brenner, Eric Gloaguen, Shun-ichi Ishiuchi, Masaaki Fujii (2023). Stepwise hydration of [CH3COOMg]+ studied by cold ion trap infrared spectroscopy: insights into interactions in the magnesium channel selection filters. Physical Chemistry Chemical Physics, 25(35), 23923-23928.

Koki Yoshizawa, Keisuke Hirata, hun-ichi Ishiuchi, Masaaki Fujii, Anne Zehnacker (2023). Does Chiral Sensitivity of a Structure Depend on the Metal Core? Alkali Ion Complexes of Cyclo(Tyr-Tyr). ChemPhysChem, 24(18), e202300172.

Risako Matsuno, Otto Dopfer, Masaaki Fujii, Mitsuhiko Miyazaki (2023). Hydration Rearrangement in the 4-Aminobenzonitrile−(H2O)2 Cluster Induced by Photoionization: The Effect of Solvent-Solvent Interactions. Chemisry A European Journal, 29(44), e202301128.

Keisuke Hirata, Eiko Sato, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii (2023). Ion Recognition beyond Size Matching: Cooperative Hydration Effect on the K+ Selectivity of Valinomycin over Na+ Revealed by Cryogenic Double Ion Trap Infrared Spectroscopy. The Journal of Physical Chemistry Letters, 14(24), 5567-5572.

Satoru Tanabe, Keisuke Hirata, Koichi Tsukiyama, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii (2023). Can Ag+ Permeate through a Potassium Ion Channel? A Bottom-Up Approach by Infrared Spectroscopy of the Ag+ Complex with the Partial Peptide of a Selectivity Filter. The Journal of Physical Chemistry Letters, 14(11), 2886-2890.

Franco Molina, Jordan Dezalay, Jun-ichi Tabata, Satchin Soorkia, Michel Broquier, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii, Gilles Grégoire (2023). Conformer-selective photodynamics of TrpH+-H2O. ChemPhysChem, 24(2), e202200561.

Han Jun Eun, Shun-ichi Ishiuchi, Ji Young Baek, Seulgi Lee, Jiyoung Heo, Masaaki Fujii, Nam Joon Kim (2023). Cryogenic ion spectroscopy of adenine complexes containing alkali metal cations. Physical Chemistry Chemical Physics, 23(11), 6783-6790.

Yukina Suzuki, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii (2023). Thermodynamics and kinetics of a partial peptide of K+ channels: DFT transition state calculations coupled with temperature-controlled gas phase laser spectroscopy. Bulletin of the Chemical Society of Japan, 96(3), 310-317.

Kyota Akasaka, Keisuke Hirata, Fuad Haddad, Otto Dopfer, Shun-ichi Ishiuchi, Masaaki Fujii (2023). Hydration-induced protomer switching in p-aminobenzoic acid studied by double ion trap infrared spectroscopy. Physical Chemistry Chemical Physics, 24(6), 4481-4488.

Keisuke Hirata, Eiko Sato, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii (2023). Cation-responsive cavity expansion of valinomycin revealed by cryogenic ion trap infrared spectroscopy. Physical Chemistry Chemical Physics, 25(2), 1075-1080.

Shun Ito, Yuriko Tasaka, Katsunosuke Nakamura, Yuki Fujiwara, Keisuke Hirata, Kiichirou Koyasu, Tatsuya Tsukuda (2022). Electron Affinities of Ligated Icosahedral M13 Superatoms Revisited by Gas-Phase Anion Photoelectron Spectroscopy. The Journal of Physical Chemistry Letters, 13(22), 5049-5055.

Keisuke Hirata, Shun Ito, Kuenhee Kim, Katsunosuke Nakamura, Hirokazu Kitazawa, Shun Hayashi, Kiichirou Koyasu, Tatsuya Tsukuda (2022). Correction to “Photoinduced Thermionic Emission from [M25(SR)18]− (M = Au, Ag) Revealed by Anion Photoelectron Spectroscopy”. The Journal of Physical Chemistry C, 126(20), 8965-8966.

Kien X. Vo, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii (2022). Na+ selective binding by beauvericin and its mechanism studied by mass-coupled cold ion trap infrared spectroscopy. The Journal of Physical Chemistry Letters, 13(48), 11330-111334.

Keisuke Yamaguchi, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii (2022). Ultraviolet and infrared spectra of mono-, di- and tri-hydrated clusters of protonated noradrenaline – Solvation and conformational variations. Chemical Physics Letters, 806, 140014.

Koki Yoshizawa, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii, Anne Zehnacker (2022). Do Stereochemical Effects Overcome a Charge-induced Perturbation in Isolated Protonated cyclo(Tyr-Tyr)?. The Journal of Physical Chemistry A, 126(37), 6387-6394.

Garrett D. Santis, Naoya Takeda, Keisuke Hirata, Kazuya Tsuruta, Shun-ichi Ishiuchi, Sotiris S. Xantheas, Masaaki Fujii (2022). Structure of Gas Phase Monohydrated Nicotine: Implications for Nicotine’s Native Structure in the Acetylcholine Binding Protein. Journal of the Americal Chemical Society, 144(37), 16698-16702.

Yukina Suzuki, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii (2022). A bottom-up approach to the ion recognition mechanism of K+ channels from laser spectroscopy of hydrated partial peptide–alkali metal ion complexes. Physical Chemistry Chemical Physics, 24(35), 20803-20812.

Jeremy Donon, Jean-Xavier Bardaud, Varérie Brenner, Shun-ichi Ishiuchi, Masaaki Fujii, Eric Gloaguen (2022). Stepwise dissociation of ion pairs by water molecules: cation-dependent separation mechanisms between carboxylate and alkali-earth metal ions. Physical Chemistry Chemical Physics, 24(20), 12121-12125.

Keisuke Hirata, Ken-ichi Kasai, Koki Yoshizawa, Gilles Grégoire, Shun-ichi Ishiuchi, Masaaki Fujii (2022). Excited state dynamics of protonated dopamine: Hydration and conformation effects. Physical Chemistry Chemical Physics, 24(18), 10737-10744.

Keisuke Hirata, Fuad Haddad, Otto Dopfer, Shun-ichi Ishiuchi, Masaaki Fujii (2022). Collision-assisted stripping for determination of microsolvation-dependent protonation sites in hydrated clusters by cryogenic ion trap infrared spectroscopy: the case of benzocaineH+(H2O)n. Physical Chemistry Chemical Physics, 24(10), 5774-5779.

Naoya Takeda, Keisuke Hirata, Kazuya Tsuruta, Garrett D. Santis, Sotiris S. Xantheas, Shun-ichi Ishiuchi, Masaaki Fujii (2022). Gas phase protonated nicotine is a mixture of pyridine- and pyrrolidine-protonated conformers: implications for its native structure in the nicotinic acetylcholine receptor. Physical Chemistry Chemical Physics, 24(10), 5786-5793.

Mitsuhiko Miyazaki, Tairiku Kamiya, Matthias Wohlgemuth, Kuntal Chatterjee, Roland Mitrić, Otto Dopfer, Masaaki Fujii (2022). Real-time observation of photoionization-induced water migration dynamics in 4-methylformanilide–water by picosecond time-resolved infrared spectroscopy and ab initio molecular dynamics simulations. Physical Chemistry Chemical Physics, 24(1), 73-85.

Mitsuhiko Miyazaki, Yuri Sakata, Megumi Ono, Remina Otsuka, Otto Dopfer, Masaaki Fujii (2021). Isomer-selective spectroscopy and dynamics of phenol-Arn(n ≤ 5) clusters. The Journal of Physical Chemistry A, 125(46), 9969-9981.

Yukina Suzuki, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii (2021). Double Ion Trap Laser Spectroscopy of Alkali Metal Ion Complexes with a Partial Peptide of the Selectivity Filter in K+ Channels─Temperature Effect and Barrier for Conformational Conversions. The Journal of Physical Chemistry A, 125(44), 9609-9618.

Keisuke Hirata, Ken-ichi Kasai, Gilles Grégoire, Shun-ichi Ishiuchi, Masaaki Fujii (2021). Hydration-controlled excited-state relaxation in protonated dopamine studied by cryogenic ion spectroscopy. The Journal of Chemical Physics, 155(15), 151101.

Haruko Akutsu, Reiko Saito, Jun Asakawa, Kei Kiyokawa, Masato Morita, Tetsuo Sakamoto, Masaaki Fujii (2021). Distribution of trace impurities in microvolumes and analysis of concentration using laser sputtered neutral mass spectrometry. The Journal of Vacuum Science & Technology B, 39(6), 064002.

Takumi Negoro, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii (2021). Potassium and Sodium Ions Complexes with a Partial Peptide of the Selectivity Filter in K+ Channels Studied by Cold Ion Trap Infrared Spectroscopy: Effect of Hydration. Physical Chemistry Chemical Physics, 23(21), 12045-12050.

Han Jun Eun, Shun-ich Ishiuchi, Ji Young Baek, Seulgi Lee, Jiyoung Heo, Masaaki Fujii, Nam Joon Kim (2021). Cryogenic ion spectroscopy of adenine complexes containing alkali metal cations. Physical Chemistry Chemical Physics, 23(11), 6783-6790.

Christophe Jouvet, Mitsuhiko Miyazaki, Masaaki Fujii (2021). Revealing the role of excited state proton transfer (ESPT) in excited state hydrogen transfer (ESHT): systematic study in phenol-(NH3)n clusters. Chemical Science, 12(11), 3836-3856.

Eiko Sato, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii (2021). Rethinking Ion Transport by Ionophores: Experimental and Computational Investigation of Single Water Hydration in Valinomycin-K+ Complexes. The Journal of Physical Chemistry Letters, 12(6), 1754-1758.

Yuriko Tasaka, Katsunosuke Nakamura, Sami Malola, Keisuke Hirata, Kuenhee Kim, Kiichirou Koyasu, Hannu Häkkinen, Tatsuya Tsukuda (2020). Electron Binding in a Superatom with a Repulsive Coulomb Barrier: The Case of [Ag<inf>44</inf>(SC<inf>6</inf>H<inf>3</inf>F<inf>2</inf>)<inf>30</inf>]<inf>4-</inf> in the Gas Phase. The Journal of Physical Chemistry Letters, 11(8), 3069-3074.

Keisuke Hirata, Yuta Mori, Shun-ichi Ishiuchi, Masaaki Fujii, Anne Zehnacker (2020). Chiral discrimination between tyrosine and β-cyclodextrin revealed by cryogenic ion trap infrared spectroscopy. Physical Chemistry Chemical Physics, 22(43), 24887-24894.

Jang Han Kwon, Min Ji Lee, Gyeongok Song, Kazuya Tsuruta, Shun-ichi Ishiuchi, Masaaki Fujii, Hyuk Kang (2020). Cryogenic Ion Spectroscopy of a Singly Protonated Peptide DYYVVR: Locating Phosphorylation Sites of a Kinase Domain. The Journal of Physical Chemistry Letters, 11(17), 7103-7108.

Jordan Dezalay, Michel Broquier, Satchin Soorkia, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii, Gilles Grégoire (2020). Excited-state proton transfer in protonated adrenaline revealed by cryogenic UV photodissociation spectroscopy. Physical Chemistry Chemical Physics, 22(20), 11498-11507.

Reiko Saito, Haruko Akutsu, Jun Asakawa, Yue Zhao, Kei Kiyokawa, Masato Morita, Tetsuo Sakamoto, Masaaki Fujii (2020). Improvement of ionization yield in sputtered neutral mass spectrometry using pulsed infrared and ultraviolet lasers. Journal of Vacuum Science & Technology B, 38(3), 034011.

Shun-ichi Ishiuchi, Junko Kamizori, Norihiro Tsuji, Makoto Sakai, Mitsuhiko Miyazaki, Claude Dedonder, Christophe Jouvet, Masaaki Fujii (2020). Excited state hydrogen transfer dynamics in phenol–(NH3)2 studied by picosecond UV-near IR-UV time-resolved spectroscopy. Physical Chemistry Chemical Physics, 22(10), 5740-5748.

Remina Otsuka, Keisuke Hirata, Yuta Sasaki, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii (2020). Alkali and alkaline earth metal ions complexes with a partial peptide of the selectivity filter in K+ channels studied by a cold ion trap infrared spectroscopy. ChemPhysChem, 21(8), 712-724.

Keisuke Hirata, Ryohei Tomihara, Kuenhee Kim, Kiichirou Koyasu, Tatsuya Tsukuda (2019). Characterization of chemically modified gold and silver clusters in gas phase. Physical Chemistry Chemical Physics, 21(32), 17463-17474.

Kuenhee Kim, Keisuke Hirata, Katsunosuke Nakamura, Hirokazu Kitazawa, Shun Hayashi, Kiichirou Koyasu, Tatsuya Tsukuda (2019). Elucidating the Doping Effect on the Electronic Structure of Thiolate-Protected Silver Superatoms by Photoelectron Spectroscopy. Angewandte Chemie - International Edition, 58(34), 11637-11641.

Keisuke Hirata, Kuenhee Kim, Katsunosuke Nakamura, Hirokazu Kitazawa, Shun Hayashi, Kiichirou Koyasu, Tatsuya Tsukuda (2019). Photoinduced Thermionic Emission from [M<inf>25</inf>(SR)<inf>18</inf>]- (M = Au, Ag) Revealed by Anion Photoelectron Spectroscopy. The Journal of Physical Chemistry C, 123(20), 13174-13179.

Mitsuhiko Miyazaki, Kuntal Chatterjee, Kaori Hattori, Remina Otsuka, Shun-ichi Ishiuchi, Otto Dopfer, Masaaki Fujii (2019). Ionization-Induced π → H Site Switching in Resorcinol–Arn (n = 1 and 2) Clusters Probed by Infrared Spectroscopy. The Journal of Physical Chemistry A, 123(32), 6828-6839.

Shun-ichi Ishiuchi, Hiromichi Wako, Sotiris S. Xantheas, Masaaki Fujii (2019). Probing the selectivity of Li+ and Na+ cations on noradrenaline at the molecular level. Faraday Discussions, 217, 396-413.

Masato Tamura, Tsubasa Sekiguchi, Shun-ichi Ishiuchi, Anne Zehnacker-Rentien, Masaaki Fujii (2019). Can the Partial Peptide SIVSF of the β2-Adrenergic Receptor Recognize Chirality of the Epinephrine Neurotransmitter?. The Journal of Physical Chemistry Letters, 10(10), 2470-2474.

Shun-ichi Ishiuchi, Yuta Sasaki, James M. Lisy, Masaaki Fujii (2019). Ion-peptide interactions between alkali metal ions and a termini-protected dipeptide; Modeling a portion of the selectivity filter in K+ channels. Physical Chemistry Chemical Physics, 21(2), 561-571.

Johanna Klyne, Aude Bouchet, Shun-ichi Ishiushi, Masaaki Fujii, Otto Dopfer (2019). Cation-Size-Dependent Conformational Locking of Glutamic Acid by Alkali Ions: Infrared Photodissociation Spectroscopy of Cryogenic Ions. The Journal of Physical Chemistry B, 122(8), 2295–2306.

Keisuke Hirata, Papri Chakraborty, Abhijit Nag, Shinjiro Takano, Kiichirou Koyasu, Thalappil Pradeep, Tatsuya Tsukuda (2018). Interconversions of Structural Isomers of [PdAu8(PPh3)8]2+ and [Au9(PPh3)8]3+ Revealed by Ion Mobility Mass Spectrometry. The Journal of Physical Chemistry C, 122(40), 23123-23128.

Ryohei Tomihara, Keisuke Hirata, Hiroki Yamamoto, Shinjiro Takano, Kiichirou Koyasu, Tatsuya Tsukuda (2018). Collision-Induced Dissociation of Undecagold Clusters Protected by Mixed Ligands [Au<inf>11</inf>(PPh<inf>3</inf>)<inf>8</inf>X<inf>2</inf>]+ (X = Cl, C≡CPh). ACS Omega, 3(6), 6237-6242.

Johanna Klyne, Aude Bouchet, Shun-ichi Ishiuchi, Masaaki Fujii, Markus Schneider, Carsten Baldauf, Otto Dopfer (2018). Probing chirality recognition of protonated glutamic acid dimers by gas-phase vibrational spectroscopy and first-principles simulations. Physical Chemistry Chemical Physics, 20(45), 28452-28464.

Mitsuhiko Miyazaki, Nozomi Washio, Masaaki Fujii (2018). Electron-proton transfer mechanism of excited-state hydrogen transfer in phenol–(NH3)n (n = 5) studied by delayed ionization detected femtosecond time-resolved NIR spectroscopy. Chemical Physics, 515, 580-585.

Woon Yong Sohn, Jeong Jin Kim, Myeongwon Jeon, Takuma Aoki, Shun-ichi Ishiuchi, Masaaki Fujii, Hyuk Kang (2018). Entropic effects make a more tightly folded conformer of a β-amino acid less stable: UV-UV hole burning and IR dip spectroscopy of L-β3-homotryptophan using a laser desorption supersonic jet technique. Physical Chemistry Chemical Physics, 20(30), 19979–19986.

Aude Bouchet, Johanna Klyne, Shun-ichi Ishiushi, Otto Dopfer, Masaaki Fujii, Anne Zehnacker (2018). Stereochemistry-dependent structure of hydrogen-bonded protonated dimers: the case of 1-amino-2-indanol. Physical Chemistry Chemical Physics, 20(18), 12430–12443.

Tsubasa Sekiguchi, Masato Tamura, Hikari Oba, Pierre Çarçarbal, Rolando Rafael Lozada-Garcia, Anne Zehnacker-Rentien, Gilles Grégoire, Shun-ichi Ishiuchi, Masaaki Fujii (2018). Molecular Recognition by a Short Partial Peptide of the Adrenergic Receptor: A Bottom-Up Approach. Angewandte Chemie International Edition, 57(20), 5626–5629.

Takahiro Kashiwagi, Satoru Nagashima, Takeharu Ishikawa, Akio Takano, Suet-Yi Liu, Hisataka Takenaka, Katsumi Endo, Masaaki Fujii (2018). Bevel depth profiling by high-spatial-resolution sputtered neutral mass spectrometry with laser postionization. Journal of Vacuum Science & Technology B, 36(3), 03F133.

Reiko Saito, Haruko Akutsu, Jun Asakawa, Shiro Takeno, Kei Kiyokawa, Satoru Nagashima, Takeharu Ishikawa, Takahiro Kashiwagi, Akio Takano, Tetsuo Sakamoto, Masaaki Fujii (2018). Matrix and element dependences of useful yield in Si and SiO2 matrices using laser-ionization sputtered neutral mass spectrometry. Journal of Vacuum Science & Technology B, 36(3), 03F128.

Toshihiko Shimizu, Kenro Hashimoto, Masahiko Hada, Mitsuhiko Miyazaki, Masaaki Fujii (2018). A theoretical study on the size-dependence of ground-state proton transfer in phenol-ammonia clusters. Physical Chemistry Chemical Physics, 20(5), 3265–3276.

Johanna Klyne, Matthias Schmies, Mitsuhiko Miyazaki, Masaaki Fujii, Otto Dopfer (2018). Stepwise microhydration of aromatic amide cations: water solvation networks revealed by the infrared spectra of acetanilide+–(H2O)n clusters (n ≤ 3). Physical Chemistry Chemical Physics, 20(5), 3148–3164.

Keisuke Hirata, Keishiro Yamashita, Satoru Muramatsu, Shinjiro Takano, Keijiro Ohshimo, Toshiyuki Azuma, Ryuzo Nakanishi, Takashi Nagata, Seiji Yamazoe, Kiichirou Koyasu, Tatsuya Tsukuda (2017). Anion photoelectron spectroscopy of free [Au-25(SC12H25)(18)](-). Nanoscale, 9(36), 13409-13412.

Antonio Armentano, Xin Tong, Mikko Riese, Simon M. Pimblott, Klaus Müller-Dethlefs, Masaaki Fujii, Otto Dopfer (2011). Mass analyzed threshold ionization spectra of phenol···Ar2: ionization energy and cation intermolecular vibrational frequencies. Physical Chemistry Chemical Physics, 13(13), 6071–6076.

Mitsuhiko Miyazaki, Akihiro Takeda, Shun-ichi Ishiuchi, Makoto Sakai, Otto Dopfer, Masaaki Fujii (2011). Photoionization-induced large-amplitude pendular motion in phenol+–Kr. Physical Chemistry Chemical Physics, 13(7), 2744–2747.

Shun-ichi Ishiuchi, Mitsuhiko Miyazaki, Makoto Sakai, Masaaki Fujii, Matthias Schmies, Otto Dopfer (2011). Ionization-induced π → H site switching dynamics in phenol–Ar3. Physical Chemistry Chemical Physics, 13(6), 2409–2416.

Hiroyuki Yamada, Kentaro Misawa, Daisuke Suzuki, Koichi Tanaka, Jun Matsumoto, Masaaki Fujii, Kotaro Tanaka (2011). Detailed analysis of diesel vehicle exhaust emissions: Nitrogen oxides, hydrocarbons and particulate size distributions. Proceedings of the Combustion Institute, 33(2), 2895–2902.

Morihisa Saeki, Shun-ichi Ishiuchi, Makoto Sakai, Kenro Hashimoto, Masaaki Fujii (2010). Structural Evolution of (1-NpOH)n Clusters Studied by R2PI and IR Dip Spectroscopies. The Journal of Physical Chemistry A, 114(42), 1210–11215.

Kenji Sakota, Christophe Jouvet, Claude Dedonder, Masaaki Fujii, Hiroshi Sekiya (2010). Excited-State Triple-Proton Transfer in 7-zaindole(H2O)2 and Reaction Path Studied by Electronic Spectroscopy in the Gas Phase and Quantum Chemical Calculations. The Journal of Physical Chemistry A, 114(42), 11161–11166.

Antonio Armentano, Mikko Riese, Mehran Taherkhani, Med Ben Yezzar, Klaus Müller-Dethlefs, Masaaki Fujii, Otto Dopfer (2010). Fragmentation Energetics of the Phenol+···Ar3 Cation Cluster. The Journal of Physical Chemistry A, 114(42), 11139–11143.

Xin Tong, Antonio Armentano, Mikko Riese, Med Ben Yezzar, Simon M. Pimblott, Klaus Müller-Dethlefs, Shun-ichi Ishiuchi, Makoto Sakai, Akihiro Takeda, Masaaki Fujii, Otto Dopfer (2010). Dissociation energetics of the phenol+···Ar2 cluster ion: The role of π → H isomerization. The Journal of Chemical Physics, 133(15), 154308-1–5.

Daniel Neumark, Masaaki Fujii, Michael Duncan (2010). Tribute to Klaus Müller-Dethlefs. The Journal of Physical Chemistry A, 14(42), 11027.

井上 圭一, 藤井 正明, 酒井 誠 (2010). ２波長レーザー分光法を用いた赤外超解像イメージ測定法. 分光研究, 59(5), 233–234.

坂本 哲夫, 藤井 正明 (2010). レーザーイオン化／収束イオンビームによる単一ナノ粒子の履歴解析装置. 化学と工業, 63(10), 802–803.

G. A. Pino, A. N. Oldani, E. Marceca, M. Fujii, S.-I. Ishiuchi, M. Miyazaki, M. Broquier, C. Dedonder, C. Jouvet (2010). Excited state hydrogen transfer dynamics in substituted phenols and their complexes with ammonia: ππ-πσ energy gap propensity and ortho-substitution effect. The Journal of Chemical Physics, 133(12), 124313-1–12.

酒井 誠 (2010). 赤外顕微鏡で生きたままの細胞を観察する. 化学と工業, 63(9), 740.

松本 淳, 三澤 健太郎, 石内 俊一, 藤井 正明, 林 俊一, 田中 光太郎, 山田 裕之, 後藤 雄一 (2010). レーザー多光子イオン化法を用いたモード走行中自動車排気ガスに関する個別成分のリアルタイム分析とOHラジカル反応性の評価. 大気環境学会誌, 45(5), 205–211.

Michihiro Nishikawa, Kuniharu Nomoto, Shoko Kume, Keiichi Inoue, Makoto Sakai, Masaaki Fujii, Hiroshi Nishihara (2010). Dual Emission Caused by Ring Inversion Isomerization of a 4-Methyl-2-pyridyl-pyrimidine Copper(I) Complex. Journal of the American Chemical Society, 132(28), 9579–9581.

Satoshi Kogure, Keiichi Inoue, Tsutomu Ohmori, Miya Ishihara, Makoto Kikuchi, Masaaki Fujii, Makoto Sakai (2010). Infrared imaging of an A549 cultured cell by a vibrational sum-frequency generation detected infrared super-resolution microscope. Optics Express, 18(13), 13402–13406.

Haruhiko Mitsuda, Mitsuhiko Miyazaki, Iben B. Nielsen, Pierre Çarçabal, Claude Dedonder, Cristophe Jouvet, Shun-ichi Ishiuchi, Masaaki Fujii (2010). Evidence for Catechol Ring- Induced Conformational Restriction in Neurotransmitters. The Journal of Physical Chemistry Letters, 1(7), 1130–1133.

Keiichi Inoue, Masaaki Fujii, Makoto Sakai (2010). Development of a Non-scanning Vibrational Sum-Frequency Generation Detected Infrared Super-Resolution Microscope and Its Application to Biological Cells. Applied Spectroscopy, 64(3), 275–281.

Hiroyuki Yamada, Kentaro Misawa, Masaaki Fujii, Koichi Tanaka, Daisuke Suzuki, Jun Matsumoto, Kotaro Tanaka (2010). Simultaneous Measurements of Aromatic Hydrocarbons in Exhaust using a Laser Ionization Method. SAE International Journal of Engines,, 2(2), 226–234.

Jin Yagasaki, Daisuke Suzuki, Kunio Ihara, Keiichi Inoue, Takashi Kikukawa, Makoto Sakai, Masaaki Fujii, Michio Homma, Hideki Kandori, Yuki Sudo (2010). Spectroscopic Studies of a Sensory Rhodopsin I Homologue from the Archaeon Haloarcula vallismortis. Biochemistry, 49(6), 1183–1190.

Nándor Bokor, Keiichi Inoue, Satoshi Kogure, Masaaki Fujii, Makoto Sakai (2010). Visible-super-resolution infrared microscopy using saturated transient fluorescence detected infrared spectroscopy. Optics Communications, 283(3), 509–514.

Hirokazu Watanabe, Shun-ichi Ishiuchi, Kentaro Misawa, Mitsuhiko Miyazaki, Jonathan R. Woodward, Masaaki Fujii (2010). Measurement of adiabatic ionization energies of the rotational isomers of n-propylbenzene and m-fluorophenol by direct VUV laser photoionization. Chemical Physics Letters, 485(1-3), 31–35.

Daisuke Suzuki, Yuji Furutani, Keiichi Inoue, Takashi Kikukawa, Makoto Sakai, Masaaki Fujii, Hideki Kandori, Michio Homma, Yuki Sudo (2010). Corrigendum to “Effects of Chloride Ion Binding on the Photochemical Properties of Salinibacter Sensory Rhodopsin I” [J. Mol. Biol. (2009) 392, 48–61]. Journal of Molecular Biology, 395(1), 220–221.

Kentaro Misawa, Shun-ichi Ishiuchi, Masaaki Fujii, Jun Matsumoto, Koichi Tanaka, Jun Nakagawa, Katsumi Endo, Shunichi Hayashi, Kotaro Tanaka, Hiroyuki Yamada, Yuichi Goto (2009). Real-time Analysis of Benzene in Exhaust Gas from Driving Automobiles Using Jet-REMPI Method. SAE Technical papers, 2009-01-2740.

Hiroyuki Yamada, Kentaro Misawa, Masaaki Fujii, Koichi Tanaka, Daisuke Suzuki, Jun Matsumoto, Kotaro Tanaka (2009). Simultaneous Measurements of Aromatic Hydrocarbons in Exhaust using a Laser Ionization Method. SAE Technical papers, 2009-01-2742.

Yuki Sudo, Akio Okada, Daisuke Suzuki, Keiichi Inoue, Hiroki Irieda, Makoto Sakai, Masaaki Fujii, Yuji Furutani, Hideki Kandori, Michio Homma (2009). Characterization of a Signaling Complex Composed of Sensory Rhodopsin I and Its Cognate Transducer Protein from the Eubacterium Salinibacter ruber. Biochemistry, 48(42), 10136–10145.

酒井 誠, 井上 圭一, 藤井 正明 (2009). 細胞内部可視化を目指した赤外超解像顕微分光法の開発. レーザー研究, 37(10), 729–733.

Daisuke Suzuki, Yuji Furutani, Keiichi Inoue, Takashi Kikukawa, Makoto Sakai, Masaaki Fujii, Hideki Kandori, Michio Homma, Yuki Sudo (2009). Effects of Chloride Ion Binding on the Photochemical Properties of Salinibacter Sensory Rhodopsin I. Journal of Molecular Biology, 392(1), 48–62.

Kotaro Tanaka, Kentaro Misawa, Koichi Tanaka, Jun Matsumoto, Shun-ichi Ishiuchi, Jiro Saikawa, Masaaki Fujii, Shu (2009). レーザーイオン化法による自動車排出ガスのリアルタイム質量分析（第2報） ―モード走行時の排出傾向― // Real-time Mass Spectrometry of Exhaust Gas from Automobiles Utilizing Laser Ionization (Second Report) ―Emission Trends in Driving Mode―. 自動車技術会論文集, 40(5), 1339–1344.

Kentaro Misawa, Kotaro Tanaka, Koichi Tanaka, Jun Matsumoto, Shun-ichi Ishiuchi, Jiro Saikawa, Shun-ichi Hayashi (2009). レーザーイオン化 法による自動車排出ガスのリアルタイム質量分析（第1報） ―多成分同時分析装置の開発― // Real-time Mass Spectrometry of Exhaust Gas from Automobiles Utilizing Laser Ionization (First Report) ―Development of Simultaneous Analyzer of Multicomponents―. 自動車技術会論文集, 40(5), 1333–1338.

Keiichi Inoue, Nándor Bokor, Satoshi Kogure, Masaaki Fujii, Makoto Sakai (2009). Two-point-separation in a sub-micron nonscanning IR super-resolution microscope based on transient fluorescence detected IR spectroscopy. Optics Express, 17(14), 2013–12018.

酒井 誠, 井上 圭一, 藤井 正明 (2009). 過渡蛍光検出赤外分光による超解像イメージング. 光学, 38(7), 344–349.

Kotaro Suzaki, Hiroyuki Yamada, Yuichi Goto, Kentaro Misawa, Jun Matsumoto, Masaaki Fujii, Koichi Tanaka, Keitaro Watanabe, Shun-ichi Ishiuchi, Jun Nakagawa, Katsumi Endo, Shunichi Hayashi (2009). Simultaneous Measurements for Multicomponents of VOCs and PAHs in Diesel Exhaust Gas using a Laser Ionization Method. SAE Technical papers, 2009-01-1842.

Kentaro Misawa, Koichi Tanaka, Hiroyuki Yamada, Yuichi Goto, Jun Matsumoto, Yohei Yamato, Shun-ichi Ishiuchi, Masaaki Fujii, Katsumi Endo, Shun-ichi Hayashi (2009). Time-resolved measurements of low concentration aromatic hydrocarbons in diesel exhaust using a resonance enhanced multi-photon ionization method. Internatinal Journal of Engine research,, 10(6), 409–417.

Mitsuhiko Miyazaki, Jiro Saikawa, Hideki Ishizuki, Takunori Taira, Masaaki Fujii (2009). Isomer selective infrared spectroscopy of supersonically cooled cis- and trans-N-phenylamides in the region from amide band to NH stretching vibration. Physical Chemistry Chemical Physics, 11(29), 6098–6106.

Alexander Patzer, Judith Langer, Harald Knorke, Helge Neitsch, Otto Dopfer, Mitsuhiko Miyazaki, Kaori Hattori, Akihiro Takeda, Shun-ichi Ishiuchi, Masaaki Fujii (2009). IR spectra of resorcinol+–Arn cluster cations (n = 1, 2): Evidence for photoionization-induced π → H isomerization. Chemical Physics Letters, 474(1-3), 7–12.

大森 努, 井上 圭一, 酒井 誠, 藤井 正明, 石原 美弥, 菊地 眞 (2009). 蛍光検出を利用した赤外超解像顕微鏡法によるA549細胞の測定. 日本レーザー医学会誌, 30(4), 427–434.

宮﨑 充彦, 斎川 次郎, 藤井 正明, 石月 秀貴, 平等 拓範 (2009). 高出力，広帯域波長可変，高分解能中赤外光線の開発と赤外・紫外二重共鳴分光への応用”. レーザー研究, 37(4), 296–303.

Tsutomu Ohmori, Keiichi Inoue, Makoto Sakai, Masaaki Fujii, Miya Ishihara, Makoto Kikuchi (2009). Functional Imaging of a Single Cell: Far-field Infrared Super-resolution Microscopy Using Auto-fluorescence Detection. Proceedings of SPIE (Society of Photographic Instrumentation Engineers), 7182, 71820G-1–6.

Nao Terasaki, Noritaka Yamamoto, Takashi Hiraga, Yoshnori Yamanoi, Tetsu Yonezawa, Hiroshi Nishihara, Tsutomu Ohmori, Makoto Sakai, Masaaki Fujii, Akihiro Tohri, Masako Iwai, Isao Enami, Yasunori Inou (2009). Plugging a Molecular Wire into Photosystem Ι: Reconstitution of the Photoelectric Conversion System on a Gold Electrode. Angewandte Chemie International Edition, 48(9), 1585–1587.

Jun Matsumoto, Kentaro Misawa, Shun-ichi Ishiuchi, Masaaki Fujii (2009). In Situ, Fast-response, Molecular-selective Methods for Measuring Emission Factors of Volatile Organic Compounds (VOCs) into the Atmosphere. Chemistry Letters, 38(1), 74–75.

Koji Makara, Kentaro Misawa, Mitsuhiko Miyazaki, Haruhiko Mitsuda, Shun-ichi Ishiuchi, Masaaki Fujii (2008). Vibrational Signature of the Conformers in Tyramine Studied by IR Dip and Dispersed Fluorescence Spectroscopies. The Journal of Physical Chemistry A, 112(51), 13463–13469.

Benjamin J. Miller, Henrik G. Kjaergaard, Kaori Hattori, Shun-ichi Ishiuchi, Masaaki Fujii (2008). The most stable conformer of benzyl alcohol. Chemical Physics Letters, 466(1-3), 21–26.

Kentaro Misawa, Jun Matsumoto, Norihiro Tsuji, Yoichi Matsuzaki, Shun-ichi Hayashi, Masaaki Fujii (2008). Resonance Enhanced Multiphoton Ionization Spectroscopy of the S1–S0 Transition of Benzo[e]pyrene for Real-time Analysis. Chemistry Letters, 37(12), 1280–1281.

Akiko Inagaki, Hiroki Nakagawa, Munetaka Akita, Keiichi Inoue, Makoto Sakai, Masaaki Fujii (2008). Synthesis of Pd complexes directly linked to the light-absorbing [(bpy)3Ru]²+ unit and their photochemical reactions toward styrenes. Dalton Transactions, 2008(47), 6709–6723.

Yuna Koizumi, Christophe Jouvet, Tsuji Norihiro, Shun-ichi Ishiuchi, Claude Dedonder-Lardeux, Masaaki Fujii (2008). Electronic spectra of 7-azaindole/ammonia clusters and their photochemical reactivity. The Journal of Chemical Physics, 129(10), 104311-1–10.

藤井 正明 (2008). 2波長レーザー分光に基づく超解像光学顕微鏡の開発. Japan Intense Light Field Science Society (JILS) Newsletter, 44, 1–18.

藤井 正明 (2008). 光の研究コミュニティ―技術進展を支える光関連研究会/グループ― 第60回（社）日本分光学会 生細胞分光部会. OPTRONICS, 27(320), 144–145.

石内 俊一, 藤井 正明 (2008). 超臨界流体ジェット分光法の開発と高次系分子分光への応用. 分光研究, 57(4), 158–167.

Jiro Saikawa, Mitsuhiko Miyazaki, Masaaki Fujii, Hideki Ishizuki, Takunori Taira (2008). High-energy, broadly tunable, narrow-bandwidth mid-infrared optical parametric system pumped by quasi-phase-matched devices. Optics Letters, 33(15), 1699–1701.

Kentaro Misawa, Jun Matsumoto, Yohei Yamato, Saori Mae, Shun-ichi Ishiuchi, Masaaki Fujii, Koichi Tanaka, Tetsuya Suzuki, Shun-ichi Hayashi, Hiroyuki Yamada, Yuichi Goto (2008). Real-Time and Direct Measurement of Pollutants in Exhaust Gas Utilizing Supersonic Jet/Resonance Enhanced Multi-Photon Ionization. SAE Technical Papers, 2008-01-0761.

Nándor Bokor, Yoshinori Iketaki, Takeshi Watanabe, Masaaki Fujii (2008). Compact fluorescence depletion microscope system using an integrated optical element. Optics Communications, 281(7), 1850–1854.

林 俊一, 鈴木 哲也, 石内 俊一, 藤井 正明 (2008). 環境負荷物質分析のための高感度オンラインレーザーイオン化質量分析装置の開発. 分析化学, 57(4), 227–237.

藤井 正明 (2008). 基礎研究者がする応用研究. Molecular Science, 2, A0026.

三澤 健太郎, 松本 淳, 石内 俊一, 藤井 正明, 林 俊一 (2008). 超高感度レーザー分析の最前線＝分子選択的リアルタイム高感度分析＝. 光アライアンス, 19(3), 48–52.

Tsutomu Ohmori, Makoto Sakai, Miya Ishihara, Makoto Kikuchi, Masaaki Fujii (2008). Cell imaging by transient fluorescence detected infrared microscopy. Proceedings of SPIE (Society of Photographic Instrumentation Engineers), 6853, 685307-1–7.

酒井 誠, 井上 圭一, 藤井 正明 (2008). 2波長レーザー分光法に基づく超解像光学顕微鏡の開発. 機能材料, 28(2), 22–27.

藤井 正明 (2008). 2波長超解像光学顕微鏡. 化学と工業, 61(2), 115–118.

Kentaro Misawa, Jun Matsumoto, Yohei Yamato, Saori Mae, Shun-ichi Ishiuchi, Masaaki Fujii, Koichi Tanaka, Tetsuya Suzuki, Shun-ichi Hayashi, Hiroyuki Yamada, Yuichi Goto (2008). 共鳴多光子イオン化法を用いた排出ガス中の微量成分の前処理なしリアルタイム分析(2) ―モード走行時の排出量変動― // Real-time and Direct Analysis of Pollutants in Exhaust Gas Utilizing Resonance Enhanced multi-photon ionization (2) ―Variations of Emissions Under Test Driving Modes―. Review of Automotive Engineering, 29(1), 123–125.

Jun Matsumoto, Kentaro Misawa, Yohei Yamato, Saori Mae, Shun-ichi Ishiuchi, Masaaki Fujii, Koichi Tanaka, Tetsuya Suzuki, Shun-ichi Hayashi, Hiroyuki Yamada, Yuichi Goto (2008). “共鳴多光子イオン化法を用いた排出ガス中の微量成分の前処理なしリアルタイム分析(1) ―実ガス定量システムの確立― // Real-time and Direct Analysis of Pollutants in Exhaust Gas Utilizing Resonance Enhanced multi-photon ionization (1) ―Monitoring System for Realgas Sample―. Review of Automotive Engineering, 29(1), 119–121.

Shun-ichi Ishiuchi, Makoto Sakai, Kota Daigoku, Kenro Hashimoto, Masaaki Fujii (2007). Hydrogen transfer dynamics in a photoexcited phenol/ammonia (1:3) cluster studied by picosecond time-resolved UV-IR-UV ion dip spectroscopy. The Journal of Chemical Physics, 127(23), 234304-1–8.

Takashi Hiraga, Yasunori Inoue, Hiroshi Nishihara, Makoto Minakata, Masaaki Fujii (2007). 生体-分子電線-半導体”融合による光受容素子 // Bio-conjugate Photosensitive Nanomaterial. 真空 Journal of the Vacuum Society of Japan, 50(12), 745–751.

相本 道宏, 西藤 将之, 林 俊一, 鈴木 哲也, 石内 俊一, 藤井 正明 (2007). 超音速分子ジェット多光子共鳴イオン化質量分析装置を用いる石炭加熱時のナフタレン発生挙動の観察. 分析化学, 56(12), 1133–1139.

藤井 正明, 林 俊一, 鈴木 哲也 (2007). 微量分子の高感度測定技術 –レーザーイオン化分析装置. NIPPON STEEL MONTHLY, 173, 7–8.

Jiro Saikawa, Masaaki Fujii, Hideki Ishizuki, Takunori Taira (2007). High-energy, narrow-bandwidth periodically poled Mg-doped LiNbO3 optical parametric oscillator with a volume Bragg grating. Optics Letters, 32(20), 2996–2998.

Makoto Sakai, Tsutomu Ohmori, Masataka Kinjo, Nobuhiro Ohta, Masaaki Fujii (2007). Picosecond Time-resolved Infrared Imaging by a Nonscanning Two-color Infrared Super-resolution Microscope. Chemistry Letters, 36(11), 1380–1381.

Shun-ichi Ishiuchi, Makoto Sakai, Yuji Tsuchida, Akihiro Takeda, Yasutake Kawashima, Otto Dopfer, Klaus Müller-Dethlefs, Masaaki Fujii (2007). IR signature of the photoionization-induced hydrophobic → hydrophilic site switching in phenol–Arn clusters. The Journal of Chemical Physics,, 127(11), 114307-1–11.

Yoshinori Iketaki, Takeshi Watanabe, Nándor Bokor, Masaaki Fujii (2007). Investigation of the center intensity of first- and second-order Laguerre-Gaussian beams with linear and circular polarization. Optics Letters, 32(16), 2357–2359.

Shun-ichi Ishiuchi, Yuji Tsuchida, Otto Dopfer, Klaus Müller-Dethlefs, Masaaki Fujii (2007). Hole-Burning Spectra of Phenol–Arn (n = 1, 2) Clusters: Resolution of the Isomer Issue. The Journal of Physical Chemistry A, 111(31), 7569–7575.

Akihiro Takeda, Horia-Sorin Andrei, Mitsuhiko Miyazaki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii, Otto Dopfer (2007). IR spectra of phenol+–Krn cluster cations (n = 1, 2): Evidence for photoionization-induced π → H isomerization. Chemical Physics Letters, 443(4-6), 227–231.

Kaori Hattori, Shun-ichi Ishiuchi, Masaaki Fujii, Daryl L. Howard, Henrik G. Kjaergaard (2007). Vibrational OH-Stretching Overtone Spectroscopy of Jet-Cooled Resorcinol and Hydroquinone Rotamers. The Journal of Physical Chemistry A, 111(27), 6028–6033.

Nao terasaki, Noritaka Yamamoto, Kaoru Tamada, Mineyuki Hattori, Takashi Hiraga, Akihiro Tohri, Ikutaro Sato, Masako Iwai, Michinao Iwai, Shunpei Taguchi, Isao Enami, Yasunori Inoue, Yoshnori Yamanoi (2007). Bio-photosensor: Cyanobacterial photosystem I coupled with transistor via molecular wire. Biochimica et Biophysica Acta - Bioenergetics, 1767(6), 653–659.

Makoto Sakai, Yasutake Kawashima, Akihiro Takeda, Tsutomu Ohmori, Masaaki Fujii (2007). Far-field infrared super-resolution microscopy using picosecond time-resolved transient fluorescence detected IR spectroscopy. Chemical Physics Letters, 439(1-3), 171–176.

Nándor Bokor, Yoshinori Iketaki, Takeshi Watanabe, Kota Daigoku, Nir Davidson, Masaaki Fujii (2007). On polarization effects in fluorescence depletion microscopy. Optics Communications, 272(1), 263–268.

松本 淳, 三澤 健太郎, 石内 俊一, 鈴木 哲也, 林 俊一, 藤井 正明 (2007). 共鳴多光子イオン化法を用いたオンサイト・リアルタイム質量分析 // On-site and Real-time Mass Spectrometer Utilizing the Resonance Enhanced Multi-photon Ionization Technique. 真空 Journal of the Vacuum Society of Japan, 50(4), 241–245.

Morihisa Saeki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii (2007). Structure of the Jet-Cooled 1-Naphthol Dimer Studied by IR Dip Spectroscopy: Cooperation between the π-π Interaction and the Hydrogen Bonding. The Journal of Physical Chemistry A, 111(6), 1001–1005.

Yoshinori Iketaki, Takeshi Watanabe, Nándor Bokor, Takashige Omatsu, Takashi Hiraga, Kimihisa Yamamoto, Masaaki Fujii (2007). Measurement of Contrast Transfer Function in Super-Resolution Microscopy Using Two-Color Fluorescence Dip Spectroscopy. Applied Spectroscopy, 61(1), 6–10.

酒井 誠 (2007). 赤外ファーフィールド超解像顕微鏡. 光技術コンタクト, 45, 19–23.

Jiro Saikawa, Masaaki Fujii, Hideki Ishizuki, Takunori Taira (2006). 52 mJ narrow-bandwidth degenerated optical parametric system with a large aperture periodically poled MgO:LiNbO3 device. Optics Letters, 31(21), 3149–3151.

Shun-ichi Ishiuchi, Masaaki Fujii (2006). Development of a Supercritical Fluid Jet Technique for Supersonic Jet Laser Spectroscopy of Nonvolatile and Pyrolytic Molecules. Chemistry Letters, 35(9), 1044–1045.

Morihisa Saeki, Hiroshi Akagi, Masaaki Fujii (2006). Theoretical Study on the Structure and the Frequency of Isomers of the Naphthalene dimer. Jouranl of Chemical Theory and Computation, 2(4), 1176–1183.

Shun-ichi Ishiuchi, Masaaki Fujii, Timothy W. Robinson, Benjamin J. Miller, Henrik G. Kjaergaard (2006). Vibrational Overtone Spectroscopy of Phenol and Its Deuterated Isotopomers. The Journal of Physical Chemistry A, 110(23), 7345–7354.

Yoshinori Iketaki, Takeshi Watanabe, Nándor Bokor, Masaaki Fujii (2006). Construction of super-resolution microscope based on cw laser light source. Review of Scientific Instruments, 77(6), 063112-1–8.

Akihide Hamano, Simon Pleasants, Masahito Okida, Masahide Itoh, Toyohiko Yatagai, Takeshi Watanabe, Masaaki Fujii, Yoshinori Iketaki, Kimihisa Yamamoto, Takashige Omatsu (2006). Highly efficient 1181 nm output from a transversely diode-pumped Nd3+:KGd(WO4)2 self-stimulating Raman laser. Optics Communications, 260(2), 675–679.

林 俊一, 鈴木 哲也, 石内 俊一, 藤井 正明 (2006). 超音速分子ジェット多光分子吸収イオン化質量分析法を基本とする環境負荷物質リアルタイムモニタリング装置の開発 // Development of Real Time Monitoring Apparatus Based on Jet-REMPI Technique for the Determination of Hazardous Organic Compounds. 鉄と鋼,, 92(4), 262–267.

林 俊一, 鈴木 哲也, 石内 俊一, 藤井 正明 (2006). レーザーイオン化質量分析による超微量物質検出. レーザー研究, 34(4), 283–288.

Takeshi Watanabe, Yoshinori Iketaki, Makoto Sakai, Tsutom Ohmori, Tadashi Ueda, Takaya Yamanaka, Shun-ichi Ishiuchi, Masaaki Fujii (2006). Analysis of a fluorescence depletion process of Rhodamine 6G in a PMMA matrix induced by nano- and picosecond lasers. Chemical Physics Letters, 420(4-6), 410–415.

Norihiro Tsuji, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii, Takayuki Ebata, Christophe Jouvet, Claude Dedonder-Lardeux (2006). Excited state hydrogen transfer in fluorophenol∙ammonia clusters studied by two-color REMPI spectroscopy. Physical Chemistry Chemical Physics, 8(1), 114–121.

Nándor Bokor, Yoshinori Iketaki, Takeshi Watanabe, Masaaki Fujii (2005). Investigation of polarization effects for high-numerical-aperture first-order Laguerre-Gaussian beams by 2D scanning with a single fluorescent microbead. Optics Express, 13(26), 10440–10447.

藤井 正明 (2005). 2色レーザ光でナノ構造を視る ―2波長ファーフィールド超解像顕微鏡法の開発―. 未来材料, 5(12), 8–15.

Tetsuya Suzuki, Shun-ichi Hayashi, Shun-ichi Ishiuchi, Morihisa Saeki, Masaaki Fujii (2005). A New, Highly Sensitive Time-of-Flight Mass Spectrometer Consisting of a Flangeon-type Conical Ion Lens System and a Proto-type Daly Detector for Exhaust Gas Analysis Based on the Jet-REMPI Technique. Analytical Sciences, 21(8), 991–996.

酒井 誠, 藤井 正明 (2005). 回折限界以下の振動情報を得る ―赤外超解像顕微分光. 化学, 60(11), 34–38.

Takane Imaoka, Reiko Tanaka, Sachiko Arimoto, Makoto Sakai, Masaaki Fujii, Kimihisa Yamamoto (2005). Probing Stepwise Complexation in Phenylazomethine Dendrimers by a Metallo-Porphyrin Core. Journal of the American Chemical Society, 127(40), 13896–13905.

Shun-ichi Ishiuchi, Makoto Sakai, Yuji Tsuchida, Akihiro Takeda, Yasutake Kawashima, Masaaki Fujii, Otto Dopfer, Klaus Müller-Dethlefs (2005). Real-time Observation of Ionization-Induced Hydrophobic → Hydrophilic Switching. Angewandte Chemie International Edition, 44(38), 6149–6151.

Takeshi Watanabe, Yoshinori Iketaki, Takashige Omatsu, Kimihisa Yamamoto, Masaaki Fujii (2005). Two-Point Separation in Far-Field Super-Resolution Fluorescence Microscopy Based on Two-Color Fluorescence Dip Spectroscopy, Part I: Experimental Evaluation. Applied Spectroscopy, 59(7), 868–872.

皆方 誠, 米山 賢史, 井上 康則, 西原 寛, 藤井 正明, 平賀 隆 (2005). 光合成たんぱく質を用いたバイオフォトセンサー. 応用物理, 74(7), 924–929.

Takashi Hiraga, Yoshinori Iketaki, Takeshi Watanabe, Hideyuki Ohyi, Kazumasa Kobayashi, Noritaka Yamamoto, Toshiko Mizokuro, Masaaki Fujii (2005). Nanometer scale marker for fluorescent microscopy. Review of Scientific Instruments, 76(7), 073701-1–4.

Yoshinori Iketaki, Takeshi Watanabe, Makoto Sakai, Shun-ichi Ishiuchi, Masaaki Fujii, Tsutomu Watanabe (2005). Theoretical investigation of the point-spread function given by super-resolving fluorescence microscopy using two-color fluorescence dip specteoscopy. Optical Engineering, 44(3), 033602-1–9.

Kazunari Suzuki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii (2005). Pulsed field ionization-ZEKE photoelectron spectrum of o-, m- and p-tolunitrile. Journal of Electron Spectroscopy and Related Phenomena, 142(3), 15–221.

酒井 誠 (2005). 溶液・気相の両面から見た7-アザインドール二量体の振動緩和過程. 分光研究, 54(3), 163–169.

Takeshi Watanabe, Masaaki Fujii, Yoshi Watanabe, Nobuhito Toyama, Yoshinori Iketaki (2004). Generation of a doughnut-shaped beam using a spiral phase plate. Review of Scientific Instruments, 75(12), 5131–5135.

Makoto Sakai, Masaaki Fujii (2004). Vibrational energy relaxation of the 7-azaindole dimer in CCl4 solution studied by picosecond time-resolved transient fluorescence detected IR spectroscopy. Chemical Physics Letters, 396(4-6), 298–302.

Takeshi Watanabe, Yoshinori Iketaki, Takashige Omatsu, Kimihisa Yamamoto, Masaaki Fujii (2004). 2波長蛍光Dip分光法を用いたファーフィールド超解像顕微鏡の2点分解能評価 // Two-Point-Separation in Far-Field Super-Resolution Fluorescence Microscopy Based on Two-Color Fluorescence Dip Spectroscopy. 表面科学 Journal of the Surface Science Society of Japan, 25(8), 466–472.

Masaaki Fujii, Shun-ichi Ishiuchi, Shun-ichi Hayashi (2004). 光励起：共鳴多光子イオン化法による分子のインタクトイオン化 // Photo-excitation: Intact Ionization of Molecules by Resonance Enhanced Multiphoton Ionization Spectroscopy. 真空 Journal of the Vacuum Society of Japan, 47(8), 612–617.

Timothy W. Robinson, Henrik G. Kjaergaard, Shun-ichi Ishiuchi, Minako Shinozaki, Masaaki Fujii (2004). Vibrational Overtone Spectroscopy of Jet-Cooled Aminophenols as a Probe for Rotational Isomers. The Journal of Physical Chemistry A, 108(20), 4420–4427.

Takeshi Watanabe, Yasunori Igasaki, Norihiro Fukuchi, Makoto Sakai, Shun-ichi Ishiuchi, Masaaki Fujii, Takashige Omatsu, Kimihisa Yamamoto, Yoshinori Iketaki (2004). Formation of doughnut laser beam for super-resolving microscopy using a phase spatial light modulator. Optical Engineering, 43(5), 1136–1143.

Norifusa Satoh, Takeshi Watanabe, Yoshinori Iketaki, Takashige Omatsu, Masaaki Fujii, Kimihisa Yamamoto (2004). Formation of nano-dots of phenylazomethine dendrimers with Rhodamine 6G on mica. Polymers for Advanced Technologies, 15(4), 159–163.

Shun-ichi Ishiuchi, Kota Daigoku, Kenro Hashimoto, Masaaki Fujii (2004). Four-color hole burning spectra of phenol/ammonia 1:3 and 1:4 clusters. The Journal of Chemical Physics, 120(7), 3215–3220.

Tomohiro Hirose, Takashige Omatsu, Ryosuke Kato, Katsuyoshi Hoshino, Kenji Harada, Takeshi Watanabe, Masaaki Fujii (2003). Azo-benzene polymer thin-film laser amplifier with grating couplers based on light-induced relief hologram. Optics Communications, 228(4-6), 279–283.

Takeshi Watanabe, Yoshinori Iketaki, Takashige Omatsu, Kimihisa Yamamoto, Makoto Sakai, Masaaki Fujii (2003). Two-point-separation in super-resolution fluorescence microscope based on up-conversion fluorescence depletion technique. Optics Express, 11(24), 3271–3276.

Minako Shinozaki, Makoto Sakai, Shigeru Yamaguchi, Tomoo Fujioka, Masaaki Fujii (2003). S1–S0 Electronic spectrum of jet-cooled m-aminophenol. Physical Chemistry Chemical Physics, 5(22), 5044–5050.

Yoshinori Iketaki, Takeshi Watanabe, Shun-ichi Ishiuchi, Makoto Sakai, Takashige Omatsu, Kimihisa Yamamoto, Masaaki Fujii (2003). Predicted Spatial Resolution of Super-Resolving Fluorescence Microscopy Using Two-Color Fluorescence Dip Spectroscopy. Applied Spectroscopy, 57(10), 1312–1316.

渡邉 武史, 池滝 慶記, 藤井 正明 (2003). 蛍光Dip分光法の凝集相への応用. 分光研究, 52(5), 286–287.

Kota Daigoku, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii, Kenro Hashimoto (2003). Photochemistry of phenol–(NH3)n clusters: Solvent effect on a radical cleavage of an OH bond in an electronically excited state and intracluster reactions in the product NH4(NH3)n−1 (n ≤ 5). The Journal of Chemical Physics, 119(10), 5149–5158.

Yoshinori Iketaki, Takeshi Watanabe, Makoto Sakai, Shun-ichi Ishiuchi, Takashige Omatsu, Kimihisa Yamamoto, Masaaki Fujii (2003). 2色レーザ光を用いたナノ空間超解像蛍光計測法 // Super-resolution Fluorescence Microscopy in Nano-meter Scale Region Using Two-color Laser Beams. 表面科学 Journal of the Surface Science Society of Japan, 24(7), 392–399.

Takeshi Watanabe, Makoto Sakai, Shun-ichi Ishiuchi, Masaaki Fujii, Yoshinori Iketaki, Takashige Omatsu, Kimihisa Yamamoto (2003). Far-field super-resolution scanning fluorescence microscope by using up-conversion-depletion technique. Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference, Technical Digest (Op, paper CTuO4.

Yoshinori Iketaki, Takeshi Watanabe, Shun-ichi Ishiuchi, Makoto Sakai, Takashige Omatsu, Kimihisa Yamamoto, Masaaki Fujii, Tsutomu Watanabe (2003). Investigation of the fluorescence depletion process in the condensed phase; application to a tryptophan aqueous solution. Chemical Physics Letters, 372(5-6), 773–778.

Kenji Sakota, Norifumi Yamamoto, Kazuhiko Ohashi, Morihisa Saeki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii, Hiroshi Sekiya (2003). Pulsed field ionization-ZEKE spectroscopy of 4-aminobenzonitrile–H2O. Hydrogen-bonding interaction in the amino site. Physical Chemistry Chemical Physics, 5(9), 1775–1779.

Takeshi Watanabe, Yoshinori Iketaki, Takashige Omatsu, Kimihisa Yamamoto, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii (2003). Two-color far-field super-resolution microscope using a doughnut Beam. Chemical Physics Letters, 371(5-6), 634–639.

Makoto Sakai, Tadashi Ueda, Takaya Yamanaka, Masaaki Fujii (2003). Construction of a Picosecond Time-Resolved IR Dip Spectrometer for Studying Structures and Dynamics of Solvated Clusters. Bulletin of the Chemical Society of Japan, 76(3), 509–514.

Akihide Hamano, Yoshiyuki Usuki, Takeshi Watanabe, Masaaki Fujii, Yoshinori Iketaki, Kimihisa Yamamoto, Takashige Omatsu (2003). Self-stimulating, Transversely Diode-pumped Nd3+:PbWO4 yellow laser. Advanced Solid-State Photonics, J. Zayhowski, ed., V, paper 21.

Shun-ichi Ishiuchi, Kota Daigoku, Morihisa Saeki, Makoto Sakai, Kenro Hashimoto, Masaaki Fujii (2002). Hydrogen transfer in photo-excited phenol/ammonia clusters by UV-IR-UV ion dip spectroscopy and ab initio molecular orbital calculations. II. Vibrational Transitions. The Journal of Chemical Physics, 117(15), 7083–7093.

Shun-ichi Ishiuchi, Kota Daigoku, Morihisa Saeki, Makoto Sakai, Kenro Hashimoto, Masaaki Fujii (2002). Hydrogen transfer in photo-excited phenol/ammonia clusters by UV-IR-UV ion dip spectroscopy and ab initio molecular orbital calculations. I. Electronic Transitions. The Journal of Chemical Physics, 117(15), 7077–7082.

Kenji Sakota, Norifumi Yamamoto, Kazuhiko Ohashi, Morihisa Saeki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii, Hiroshi Sekiya (2002). IR-dip and IR-UV hole-burning spectra of jet-cooled 4-aminobenzonitrile–(H2O)1. Observation of π-type and σ-type hydrogen-bonded conformers in the CN Site. Chemical Physics, 283(1-2), 209–219.

Makoto Sakai, Shun-ichi Ishiuchi, Masaaki Fujii (2002). Picosecond time-resolved nonresonant ionization detected IR spectroscopy on 7-Azaindole dimer. The European Physcial Journal D, 20(3), 399–402.

Keigo Yosida, Kazunari Suzuki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii, Caroline E. H. Dessent, Klaus Müller-Dethlefs (2002). The PFI-ZEKE photoelectron spectrum of m-fluorophenol and its aqueous complexes: Comparing intermolecular vibrations in rotational isomers. Physical Chemistry Chemical Physics, 4(12), 2534–2538.

Henrik G. Kjaergaard, Daryl L. Howard, Daniel P. Schofield, Timothy W. Robinson, Shun-ichi Ishiuchi, Masaaki Fujii (2002). OH- and CH-Stretching Overtone Spectra of Catechol. The Journal of Physical Chemistry A, 106(2), 258–266.

Morihisa Saeki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii (2001). Structure of 1-Naphthol/Alcohol Clusters Studied by IR Dip Spectroscopy and ab Initio Molecular Orbital Calculations. The Journal of Physical Chemistry A, 105(44), 10045–10053.

Shin-ichi Kinoshita, Hiroshi Kojima, Tadashi Suzuki, Teijiro Ichimura, Keigo Yoshida, Makoto Sakai, Masaaki Fujii (2001). Pulsed field ionization zero kinetic energy photoelectron study on methylanisole molecules in a supersonic jet. Physical Chemistry Chemical Physics, 3(22), 4889–4897.

Shun-ichi Ishiuchi, Makoto Sakai, Kota Daigoku, Tadashi Ueda, Takaya Yamanaka, Kenro Hashimoto, Masaaki Fujii (2001). Picosecond time-resolved infrared spectra of photo-excited phenol–(NH3)3 cluster. Chemical Physics Letters, 347(1-3), 87–92.

Hiroshi Yokoyama, Hidekazu Watanabe, Takuichiro Omi, Shun-ichi Ishiuchi, Masaaki Fujii (2001). Structure of Hydrogen-Bonded Clusters of 7-Azaindole Studied by IR Dip Spectroscopy and ab Initio Molecular Orbital Calculation. The Journal of Physical Chemistry A, 105(41), 9366–9374.

Makoto Sakai, Kota Daigoku, Shun-ichi Ishiuchi, Morihisa Saeki, Kenro Hashimoto, Masaaki Fujii (2001). Structures of Carbazole–(H2O)n (n = 1–3) Clusters Studied by IR Dip Spectroscopy and a Quantum Chemical Calculation. The Journal of Physical Chemistry A,, 105(38), 8651–8657.

Kenji Sakota, Norifumi Yamamoto, Kazuhiko Ohashi, Hiroshi Sekiya, Morihisa Saeki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii (2001). Electronic and Infrared Spectra of Jet-cooled 4-aminiobenzonitrile–H2O. Change of NH2 from proton acceptor to proton donor by CN substitution. Chemical Physics Letters, 341(1-2), 70–76.

Ken Takazawa, Masaaki Fujii (2000). Butterfly vibration of the tetrafluorobenzene cation studied by pulsed field ionization-zero kinetic energy photoelectron spectroscopy. Journal of Electron Spectroscopy and Related Phenomena, 112(1-3), 241–245.

Masaaki Mitsui, Yasuhiro Ohshima, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii (2000). Structure and Dynamics of 9(10H)-Acridone and Its Hydrated Clusters. II. Structural Characterization of Hydrogen-Bonding Networks. The Journal of Physical Chemistry A, 104(38), 8649–8659.

Kazunari Suzuki, Yuji Emura, Shun-ichi Ishiuchi, Masaaki Fujii (2000). Internal methyl group rotation in o-cresol studied by pulsed field ionization-ZEKE photoelectron spectroscopy. Journal of Electron Spectroscopy and Related Phenomena, 108(1-3), 13–20.

Shun-ichi Ishiuchi, Morihisa Saeki, Makoto Sakai, Masaaki Fujii (2000). Infrared dip spectra of photochemical reaction products in a phenol/ammonia cluster: examination of intracluster hydrogen transfer. Chemical Physics Letters, 322(1-2), 27–32.

Kazunari Suzuki, Shun-ichi Ishiuchi, Masaaki Fujii (2000). Pulsed field ionization-ZEKE spectroscopy of cresoles and their aqueous complex: Internal rotation of methyl group and intermolecular vibrations. Faraday Discussions, 115, 229–243.

Masaaki Mitsui, Yasuhiro Ohshima, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii (2000). Structural characterization of the acridine–(H2O)n (n = 1–3) clusters by fluorescence dip infrared spectroscopy. Chemical Physics Letters, 317(3-5), 211–219.