研究業績一覧

研究内容別業績一覧（論文，特許）

論文（欧文）：８３報，論文（和文）：１報，登録特許：４件（外国１件）

背景色　緑：論文（査読有），水色：特許

金属クラスター

1.	Y. Wu, K. Miyajima, S. Kudoh, T. Nagata, F. Mafuné, "Hydrogen Storage Mechanism by Gas-Phase Vanadium Cluster Cations Revealed by Thermal Desorption Spectrometry", J. Phys. Chem. A, 127(42), 8821−8827(2023).
2.	T. Zhou, M. Abe, Y. Zhang, S. Kudoh, F. Mafuné, "Dissociative Adsorption of Water on CaMn₄O₅ Cationic Clusters", J. Phys. Chem. A, 126(44), 8218−8224(2022).
3.	Y. Zhang, M. Yamaguchi, K. Kawada, S. Kudoh, O. V. Lushchikova, J. M. Bakker, F. Mafuné, "Adsorption Forms of NO on Iridium-Doped Rhodium Clusters in the Gas Phase Revealed by Infrared Multiple Photon Dissociation Spectroscopy", J. Phys. Chem. A, 126(1), 36–43(2022).
4.	F. Mafuné, J. M. Bakker, S. Kudoh, "Dissociative adsorption of NO introduces flexibility in gas phase Rh₆⁺ clusters leading to a rich isomeric distribution", Chem. Phys. Lett, 780, 138937(2021).
5.	F. Mafuné, X. Liu,Y. Zhang, S. Kudoh, "Substitution of O with single Au atom as an electron acceptor in Al oxide clusters", J. Phys. Chem. A, 124, 7511−7517(2020).
6.	M. Yamaguchi, Y. Zhang, S. Kudoh, K. Koyama, O. V. Lushchikova, J. M. Bakker, F. Mafuné, "Oxophilicity as a Descriptor for NO Cleavage Efficiency over Group IX Metal Clusters", J. Phys. Chem. Lett., 11(11), 4408-4412(2020).
7.	F. Mafuné, Y. Zhang, X. Liu, H. Wang, S. Kudoh, " Electron Donation from Cu Atoms to Al Oxide Clusters upon Mixing Revealed by Thermal Desorption Spectrometry", J. Phys. Chem. C, 124(1), 659-667(2020).
8.	H. Wang, K. Miyajima, S. Kudoh, F. Mafuné, "Effect of Atomicity on Oxidation of Cationic Copper Clusters Studied Using Thermal Desorption Spectrometry", Phys. Chem. Chem. Phys., 21, 23129-23135(2019).
9.	F. Mafuné, M. Abe, S. Kudoh, "Adsorption forms of water molecules on gas-phase platinum clusters Pt₃⁺ studied by vibrational photodissociation spectroscopy", Zeitschrift fur Physikalische Chemie, 233(6), 881-894(2019).
10.	F. Mafuné, K. Koyama, ; Y. Nagata, S. Kudoh, T. Yasuike, K. Miyajima, D. Huitema, Y. Chernyy, J. M. Bakker, "Structures of Rhodium Oxide Cluster Cations Rh7O_m⁺ (m = 4-7, 12, 14) Revealed by Infrared Multiple Photon Dissociation Spectroscopy", J. Phys. Chem. C, 123 (10), 5964-5971(2019).
11.	M. Yamaguchi, S. Kudoh, K. Miyajima, O. Lushchikova, J. M. Bakker, F. Mafuné, "Tuning the Dissociative Action of Cationic Rh Clusters Towards NO by Substituting a Single Ta Atom",J. Phys. Chem. C, 123(6), 3476-3481(2019).
12.	T. Nagata, S. Kudoh, K. Miyajima, J. M. Bakker, F. Mafuné, "Adsorption of Multiple NO Molecules on Rh_n⁺ (n = 6, 7) Investigated by Infrared Multiple Photon Dissociation Spectroscopy", J. Phys. Chem. C, 122(40), 22884-22891(2018).
13.	T. Nagata, K. Koyama, S. Kudoh, K. Miyajima, J. M. Bakker, F. Mafuné, "Adsorption Forms of NO on Rh_n⁺ (n = 6-16) Revealed by Infrared Multiple Photon Dissociation Spectroscopy", J. Phys. Chem. C, 121(49), 27417-27426(2017).
14.	J. Yamagishi, K. Miyajima, S. Kudoh, Fumitaka Mafuné, "Catalytic Decomposition of NO by Cationic Platinum Oxide Cluster Pt₃O₄⁺", J. Phys. Chem. Lett., 8(10), 2143-2147(2017).
15.	K. Koyama, T. Nagata, S. Kudoh, K. Miyajima, D. M. M. Huitema, V. Chernyy, J. M. Bakker, F. Mafuné, “Geometrical Structures of Partially Oxidized Rhodium Cluster Cations, Rh₆O_m⁺ (m = 4, 5, 6), Revealed by Infrared Multiple Photon Dissociation Spectroscopy", J. Phys. Chem. A, 120(43), 8599-8605(2016).
16.	F. Mafuné, S. Kudoh, and M. Takenouchi, “Role of Gold Atoms in Oxidation and Reduction of Cationic Rhodium-Gold Oxide Clusters, Rh_nAu_mO_k⁺, Studied by Thermal Desorption Spectrometry and DFT Calculations”, J. Phys. Chem. C, 120(34), 19280-19285(2016).
17.	F. Mafuné, Y. Tawaraya, S. Kudoh, “Nitrogen Molecule Adsorption on Cationic Tantalum Clusters and Rhodium Clusters and Desorption from Their Nitride Clusters Studied by Thermal Desorption Spectrometry”, J. Phys. Chem. A, 120(24),4089-4095(2016)
18.	F. Mafuné, Y. Tawaraya, S. Kudoh, “Reactivity Control of Rhodium Cluster Ions by Alloying with Tantalum Atoms”, J. Phys. Chem. A, 120(6), 861-867(2016).
19.	F. Mafuné, M. Takenouchi, K. Miyajima, S. Kudoh, “Rhodium Oxide Cluster Ions Studied by Thermal Desorption Spectrometry”, J. Phys. Chem. A, 120(3), 356-363(2016).
20.	K. Koyama, S. Kudoh, K. Miyajima, F. Mafuné, "Thermal Desorption Spectroscopy Study of the Adsorption and Reduction of NO by Cobalt Cluster Ions under Thermal Equilibrium Conditions at 300 K", J. Phys. Chem. A, 119(37), 9573-9580(2015).
21.	Y. Tawaraya, S. Kudoh, K. Miyajima, F. Mafuné, “Thermal Desorption and Reaction of NO Adsorbed on Rhodium Cluster Ions Studied by Thermal Desorption Spectroscopy”, J. Phys. Chem. A, 119(31), 8461-8468(2015).
22.	K. Koyama, S. Kudoh, K. Miyajima, F. MafunF. Mafuné,“Stable Stoichiometry of Gas-Phase Manganese Oxide Cluster Ions Revealed by Temperature-Programmed Desorption”, J. Phys. Chem. A, J. Phys. Chem. A, 119(31), 8433-8442(2015).
23.	M. Takenouchi, S. Kudoh, K. Miyajima, F. MafunF. Mafuné, “Adsorption and Desorption of Hydrogen by Gas-Phase Palladium Clusters Revealed by In-situ Thermal Desorption Spectroscopy”, J. Phys. Chem. A, 119(26), 6766-6772(2015).
24.	K. Koyama, S. Kudoh, K. Miyajima, F. Mafuné, “Dissociation energy for O₂release from gas-phase iron oxide clusters measured by temperature-programmed desorption experiments”, Chem. Phys. Lett., 625, 104-109(2015).

近赤外分光

1.	Y. Futami, C. Minamoto, S. Kudoh, “Anharmonic calculations of frequencies and intensities of OH stretching vibrations of (R)-1,3-butanediol conformers in the fundamentals and first overtones by density functional theory”, Spectrochimica Acta A, 197, 254-251(2018).

ナノ粒子合成

1.	Y. Okada, R. Sawai, S. Kudoh, T. Kinoshita, “Techniques for Preventing the Oxidation of Nickel Nanoparticles Formed by Gas Phase Reaction”, J. Chem. Eng. Jpn., 49(7), 602-606(2016).
2.	Y. Okada, N. Oshio, S. Kudoh, “Fragmentation of Nanoparticle Agglomerates by Collisions”J. Chem. Eng. Jpn., 47(12), 864-868(2014).
3.	発明者：工藤聡，折井孝彰，出願人：独立行政法人理化学研究所，「粒子の製造方法および製造装置ならびに粒子」，特許番号5614678（2014年9月19日）
4.	Y. Okada, T. Taniguchi, S. Kudoh, “Formation of Non-Aggregated Nickel Nanoparticles in a Tubular Furnace Reactor”, J. Chem. Eng. Jpn., 47(5), 382-385(2014).
5.	Y. Okada, N. Oshio, K. Oda, S. Kudoh, “Fragmentation of Nanoparticle Agglomerates by Collisions in Supersonic Flows”, J. Chem. Eng. Jpn., 46(8), 530-534(2013).
6.	S. Kudoh, T. Orii, “Synthesis of Polymer-Metal Hybrid Nanoparticle by Photopolymerization of Vinylcinnamate in Gas phase”, Bull. Chem. Soc. Jpn, 86(3), 390-392(2013).
7.	発明者：工藤聡，折井孝彰，種池康仁，出願人：独立行政法人理化学研究所，株式会社島津製作所，「粒子の製造装置および製造方法」，特願2010-026856（2010年2月9日），特開2011-162842（2011年8月25日）

ナノ粒子計測（大きさ、化学組成など）

1.	Y. Okada, S. Miyazaki, T. Otsuki, S. Kudoh, “Aerosol Spectrometer for Measuring Diameters and Chemical Compositions of Particulate Organic Matter: II. Lower Detection Limit”, Earozoru kenkyu (Journal of Aerosol Research), 29(4), 272-277(2014).
2.	発明者：折井孝彰，工藤聡，出願人：独立行政法人理化学研究所，"Differential mobility analyzer, particle measuring system, and particle sorting system"，特許番号US8698076-B2（2014年4月）
3.	発明者：工藤聡，種池康仁，折井孝彰，日根隆，出願人：株式会社島津製作所，独立行政法人理化学研究所，「微分型電気移動度測定装置、並びに微分型電気移動度測定装置を用いた測定方法、微分型電気移動度測定装置に用いるプログラム及びそのプログラムを記録したコンピュータ読取り可能な記録媒体」，特許番号5453597（2014年1月17日）
4.	Y. Okada, T. Kawabata, S. Kudoh, “Aerosol Spectrometer for Measuring Diameters and Chemical Compositions of Particulate Organic Matter using a GC-MS equipped with an Adsorption-Thermal Desorption Tube”, Earozoru kenkyu (Journal of Aerosol Research), 27(3), 306-310(2012).
5.	発明者：種池康仁，工藤聡，岡田芳樹，出願人：株式会社島津製作所，学校法人関西大学，「微粒子分析システム、試料調製装置及び試料調製治具」，特願2012-259527（2012年11月28日），特開2014-106132（2014年6月9日）
6.	Y. Okada, K. Nishiumi, S. Ueno, T. Kawabata, S. Kudoh, “Accuracy of Nanoparticle Diameters Measured with a Differential Mobility Analyzer in Free-Molecule Regime”, Earozoru kenkyu (Journal of Aerosol Research), 26(3), 242-246(2011).
7.	折井孝彰，工藤聡，"Differential mobility analyzer, particle measuring system, and particle sorting system"，ヨーロッパ特許出願，出願番号10252169.7，公開番号2352008（出願日：2010年12月20日、公開日2011年8月3日）
8.	「微分型電気移動度分級装置、粒子計測システム、及び粒子選別システム」，発明者：折井孝彰，工藤聡，出願人：独立行政法人理化学研究所，特許番号5652851（2014年11月28日）
9.	M. Imanaka, A. Yoshizawa, S. Kudoh, M. Nakata, Y. Okada, K. Takeuchi, "Differential Mobility Analysis of a C60 Negative Ion in He, Ne, and Ar", Jpn. J. Appl. Phys., 45(9A), 7243-7245(2006).

機能性材料

1.	氏家賢二，篠崎良太，工藤聡，中戸晃之，中田宗隆，「粘土鉱物モンモリロナイトへのアゾベンゼンの新規挿入法と分光学的評価」，分光研究，55(2)，120-125 (2006).
2.	I. Miura, Y. Okada, S. Kudoh, M. Nakata, "Organic Electroluminescence in Porous Alumina", Jpn. J. Appl. Phys., 43(11A), 7552-7553 (2004).
3.	N. Akai, S. Kudoh, M. Nakata, “Experimental and theoretical study of a new C10N8 compound. Reversible photoisomerization between 2,3,6,7-tetra cyano- 1,4,5,8-tetraazanapthalene and 4,5,9,10-tetracyano-1,3,6,8-tetraazacyclo- deca-1,2,4,6,7,9- hexaene in low-temperature rare-gas matrices” Chem. Phys. Lett., 375(5-6), 605-611 (2003).
4.	発明者：中田宗隆，工藤聡，赤井伸行，出願人：中田宗隆，日本曹達株式会社，「テトラアザシクロデカヘキサエン化合物及びその製造法、高分子化合物、光異性化法、並びに光制御素子」，特願2003-181010（2003年6月25日），特開2005-015373（2005年1月20日）

有機分子の光反応（マトリックス単離法）

1.	M. Nagaya, S. Kudoh, M. Nakata, “Infrared spectrum of 2-hydroxyphenoxyl radical and photoisomerization between trans and cis 2-hydroxyphenyl nitrites”, Chem. Phys. Lett., 432(4-6), 446-451(2006).
2.	M. Nagaya, S. Kudoh, M. Nakata, “Infrared spectrum and structure of the aci-nitro form of 2-nitrophenol in a low-temperature argon matrix”, Chem. Phys. Lett., 427(1-3), 67-71 (2006).
3.	H. Yaehata, M. Nagaya, S. Kudoh, M. Nakata, "Two photoisomerization mechanisms of 4-amino-3-penten-2-one: Hydrogen-atom migration and internal rotation", Chem. Phys. Lett., 424(4-6), 279-284(2006).
4.	K. Ujike, S. Kudoh, M. Nakata, "UV-induced single and double hydrogen-atom migrations in 3,6-diimino-1,4-cyclohexadiene-1,4-diamine in a low- temperature argon matrix", Chem. Phys. Lett., 409(1-3), 52-56 (2005).
5.	K. Ujike, N. Akai, S. Kudoh, M. Nakata, "Photoisomerization and photocyclization of 3,5-cyclohexadiene-1,2-diimine and its methyl- substituted derivatives in low-temperature argon matrices", J. Mol. Struct., 735-736, 335-342 (2005).
6.	N. Akai, S. Kudoh, M. Nakata, "Hydrogen-atom migration and Wolff rearrangement in photolysis of chlorohydroquinone to produce p-benzoquinone and 3-hydroxy-2,4-cyclopentadiene-1-ylidenemethanone", J. Photochem. Photobiol. A, 169(1), 47-55 (2005).
7.	K. Ujike, S. Kudoh, M. Nakata, "First detection of 7,8-diazabicyclo[4.2.0]- octa-1,3,5-triene produced from 3,5-cyclohexadiene-1,2-diimine in an argon matrix", Chem. Phys. Lett., 396(4-6), 288-292 (2004).
8.	M. Nagata, Y. Futami, N. Akai, S. Kudoh, M. Nakata, “Structure and infrared spectrum of 2-hydroxyphenyl radical”, Chem. Phys. Lett., 392(1-3), 259-264 (2004).
9.	Y. Minoura, N. Nagashima, S. Kudoh, M. Nakata, “Mechanism of UV-Induced Conformational Changes among Enol-Type Isomers of (Trifluoroacetyl)acetone Studied by Low-Temperature Matrix-Isolation Infrared Spectroscopy and Density Functional Theory Calculation”, J. Phys. Chem. A, 108(12), 2353-2362 (2004).
10.	N. Akai, S. Kudoh, M. Nakata, “UV Photolysis of 1,4-Diaminobenzene in a Low-Temperature Argon Matrix to 2,5-Cyclohexadiene-1,4-diimine via 4-Aminoanilino Radical”,J. Phys. Chem. A, 107(34), 6725-6730 (2003).
11.	N. Nagashima, S. Kudoh, M. Nakata, “Infrared and UV-visible absorption spectra of hexafluoroacetylacetone in a low-temperature argon matrix. II. Detection of the nπtransition by monitoring IR spectral changes due to photoisomerization”, Chem. Phys. Lett., 374*(1-2), 67-73 (2003).
12.	N. Nagashima, S. Kudoh, M. Nakata, “Infrared and UV-visible absorption spectra of hexafluoroacetylacetone in a low-temperature argon matrix. I. Structure of a non-chelated enol-type isomer”, Chem. Phys. Lett., 374(1-2), 59-66 (2003).
13.	N. Akai, S. Kudoh, M. Nakata, “Photoisomerization and Tunneling Isomerization of Tetrachlorohydroquinone in a Low-Temperature Argon Matrix”, J. Phys. Chem. A, 107(19), 3655-3659 (2003).
14.	N. Akai, S. Kudoh, M. Nakata, “Methyl-group move in the low-temperature rare-gas matrices and conformational analysis of 1,4-dimethoxybenzene”, J. Phys. Chem. A, 107(15), 2635-2641 (2003).
15.	Y. Futami, M. L. S. Chin, S. Kudoh, M. Takayanagi, M. Nakata, "Conformations of nitro-substituted spiropyran and merocyanine studied by low-temperature matrix-isolation infrared spectroscopy and density-functional-theory calculation", Chem. Phys. Lett., 370(3-4), 460-468(2003).
16.	N. Akai, S. Kudoh, M. Takayanagi, M. Nakata, "Photoreaction mechanisms of 2-bromophenols studied by low-temperature matrix-isolation infrared spectroscopy and density-functional-theory calculation", Chem. Phys. Lett., 363(5,6), 591-597(2002).
17.	N. Akai, S. Kudoh, M. Takayanagi, M. Nakata, “Photoinduced rotational isomerization mechanism of 2-chlorobenzaldehyde in low-temperature rare-gas matrices by vibrational and electronic spectroscopies”, J. Photochem. Photobiol. A, 150, 93-100(2002).
18.	N. Nagashima, S. Kudoh, M. Takayanagi, and M. Nakata, “UV-induced photo- isomerization of acetylacetone and identification of less stable isomers by low-temperature matrix-isolation infrared spectroscopy and density-functional- theory calculation”, J. Phys. Chem. A, 105, 10832-10838(2001).
19.	N. Akai, S. Kudoh, M. Takayanagi, and M. Nakata, “Photoreaction mechanisms of 2-chlorophenol and its multiple chloro-substituted derivatives studied by low-temperature matrix-isolation infrared spectroscopy and density-functional- theory calculations”, J. Photochem. Photobiol., A, 146, 49-57 (2001).
20.	S. Kudoh, T. Uechi, M. Takayanagi, M. Nakata, and H. Frei, “Photoisomerization of acetyl methyl iminoxy radical in low-temperature argon matrices studied by density functional theory”, Chem. Phys. Lett., 328, 283-290 (2000).
21.	S. Kudoh, M. Takayanagi, and M. Nakata “Infrared spectra of Dewar 4-picoline in low-temperature argon matrices and vibrational analysis by DFT calculation”, Chem. Phys. Lett., 322, 363-370 (2000).
22.	S. Kudoh, M. Takayanagi, and M. Nakata, “Infrared spectra of Dewar 2-picoline in low-temperature argon matrices”, Chem. Phys. Lett., 308, 403-407 (1999).
23.	S. Kudoh, M. Takayanagi, and M. Nakata, “Dewar pyridine studied by matrix isolation infrared spectroscopy and DFT calculation”, J. Photochem. Photobiol., A, 123, 25-30 (1999).

励起種の分子構造

1.	D. Negishi, E. Masuko, M. Takayanagi, S. Kudoh, M. Nakata, "m-Tolunitrile?H2O complex: Isomers and methyl torsional potentials analyzed by the time-dependent density-functional theory", J. Mol. Struct., 797(1-3), 174-178(2006).
2.	N. Akai, S. Kudoh, M. Nakata, “Matrix-isolation infrared spectrum and optimized structure of 2,3-dicyanonaphthalene in the T1 state”, Chem. Phys. Lett., 392(4-6), 480-485 (2004).
3.	N. Akai, D. Negishi, S. Kudoh, M. Takayanagi, M. Nakata “Infrared spectrum and molecular structure of lowest electronically excited triplet state of 1,4-dicyano-2,3,5,6-tetrafluorobenzene in low-temperature matrices”, J. Mol. Struct., 688(1-3), 177-183 (2004).
4.	N. Akai, I. Miura, S. Kudoh, K. Shigehara, M. Nakata, “Lowest electronically excited triplet states of 1,2,4,5-tetracyanobenzene and tetracyanopyrazine by matrix-isolation infrared spectroscopy combined with a density-functional-theory calculation”, Bull. Chem. Soc. Jpn, 76(10), 1927-1933 (2003).
5.	N. Akai, S. Kudoh, M. Nakata, “Lowest excited triplet states of 1,2- and 1,4-dicyanobenzenes by low-temperature matrix-isolation infrared spectroscopy and density-functional-theory calculation”, Chem. Phys. Lett. 371(5,6), 655-661 (2003).
6.	M. Nakata, S. Kudoh, M. Takayanagi, T. Ishibashi, and C. Kato, “Lowest triplet state of naphthalene by transient polarized resonance Raman, matrix-isolation infrared, and density-functional-theory methods”, J. Phys. Chem., 104, 11304-11309 (2000).
7.	S. Kudoh, M. Takayanagi, and M. Nakata, “Matrix-isolation infrared spectra and ab initio calculations of naphthalene in the T₁ state”, J. Mol. Struct., 475, 253-260 (1999).

分子クラスターの光反応

1.	T. Uechi, S. Kudoh, M. Takayanagi, and M. Nakata, “Infrared spectra and density-functional-theory calculations of iminoxy radicals produced by visible-light induced reaction between 1-phenyl-1-propyne and NO2 in low-temperature argon matrices”, J. Phys. Chem., 106, 3365-3370(2002).
2.	S. Kudoh, T. Uechi, M. Takayanagi, M. Nakata, N. Tanaka, and K. Shibuya, “Infrared spectra of dimethylaminomethanol in low-temperature argon matrices and conformational analysis by DFT calculation”, J. Mol. Struct., 524, 251-258 (2000).
3.	N. Tanaka, J. Oike, K. Shibuya, S. Kudoh, and M. Nakata, “Visible light induced oxygen atom transfer from NO₂ to (CH₃)₃N in a cryogenic Ar matrix”, Res. Chem. Intermediates, 24, 893-903 (1998).

分子クラスターの構造および反応

1.	Y. Futami, S. Kudoh, F. Ito, T. Nakanaga, M. Nakata, “Structures of methyl halide dimers in supersonic jets by matrix-isolation infrared spectroscopy and quantum chemical calculations”, J. Mol. Struct., 690(1-3), 9-16 (2004).
2.	S. Yamaguchi, S. Kudoh, Y. Okada, T. Orii, K. Takeuchi, T. Ichikawa, H. Nakai, “Size-Dependent Reaction Cross Section of Protonated Water Clusters H⁺(H₂O)n (n=2-11) with D₂O”, J. Phys. Chem. A, 107(50), 10904-10910 (2003).
3.	S. Yamaguchi, S. Kudoh, Y. Kawai, Y. Okada, T. Orii and K. Takeuchi, “Collisional reaction of water cluster cations (H₂O)_n⁺ (n=2 and 3) with D2O” Chem. Phys. Lett., 377(1-2), 37-42 (2003).
4.	S. Yamaguchi, S. Kudoh, Y. Okada, T. Orii and K. Takeuchi, “Cluster size dependence of the H/D exchange reaction rate constant for protonated water clusters H⁺(H₂O)_n(n=2-11)”, Chem. Phys. Lett., 359, 480-485(2002).
5.	Y. Futami, S. Kudoh, M. Takayanagi and M. Nakata, “Structures of CH₃F-CH₃F and CH₃F-H₂O complexes in a supersonic jet spectroscopy and density-functional-theory calculation”, Chem. Phys. Lett., 357, 209-216(2002).
6.	F. Ito, T. Nakanaga, Y. Futami, S. Kudoh, M. Takayanagi, and M. Nakata “Isomeric structures of CH₃I dimers in a supersonic jet studied by matrix-isolation infrared spectroscopy and ab initio calculations”, Chem. Phys. Lett., 343, 185-191 (2001).
7.	S. Kudoh, K. Onoda, M. Takayanagi, and M. Nakata, “N₂O clusters in a supersonic jet studied by matrix-isolation infrared spectroscopy and DFT calculation”, J. Mol. Struct., 524, 61-68 (2000).
8.	S. Kudoh, M. Takayanagi, and M. Nakata, “Infrared spectra of (HCN)_n clusters in low-temperature argon matrices”, J. Mol. Struct., 413, 365-369 (1997).

極低温下での分子のダイナミクス

1.	K. Ichimura, Y. Futami, S. Kudoh, M. Nakata, "Hydrogen-atom inversion of 1, 2-dimethylhydrazine in low-temperature rare-gas matrices", Chem. Phys. Lett., 391(1-3), 50-55 (2004).
2.	N. Akai, S. Kudoh, M. Takayanagi, M. Nakata, "Hydrogen-Atom Tunneling of 2,5-Dichloro-3,6-dihydroxy-1,4-benzoquinone in a Low-Temperature Argon Matrix Studied by FTIR Spectroscopy", J. Phys. Chem. A, 106(46), 11029-11033(2002).
3.	N. Akai, S. Kudoh, M. Takayanagi and M. Nakata, “Cis-trans isomerization equilibrium in hydroquinone in low-temperature argon and xenon matrices studied by FTIR spectroscopy”, Chem. Phys. Lett., 356, 133-139(2002).
4.	S. Kudoh, M. Takayanagi, M. Nakata, T. Ishibashi, and M. Tasumi, “Infrared-light induced rotational isomerization of 1,2-ethanediamine in argon matrices and conformational analysis by DFT calculation”, J. Mol. Struct., 479, 41-52 (1999).
5.	S. Kudoh, M. Takayanagi, and M. Nakata, “Conformational cooling in supersonic jets of 1,2-dichloroethane studied by matrix isolation infrared spectroscopy”, Chem. Phys. Lett., 296, 329-335 (1998).

溶液中の過渡種の観測

1.	Y. Okada, K. Nitta, T. Tanaka, S. Kudoh, “Measurement of Concentration of Reaction Intermediate in Microreactors Using a Raman Microscope Spectrometer”, J. Chem. Eng. Jpn., 45(7), 539-543(2012).

雑感：　こうして並べてみると、共同研究等で参加している研究以外では、それぞれの研究なかで古い論文は私が第一著者の論文になっていて、その後、後輩や指導した学生たちが第一著者になっていっていることがよくわかりました。まあ、ひとつのことにこだわらず、何にでも首を突っ込む性格なので、研究が軌道に載るとそこは後進に譲って次の研究を始めるということが反映されているのでしょうか。というわけで、今も新しい研究に挑戦中です。現在製作中の装置でも早く研究成果が出るように、日々図面を書いて試作部品を作ったり、調整したりしています。（工藤）