H
Hiroshi Sekiya
Researcher at Kyushu University
Publications - 158
Citations - 2948
Hiroshi Sekiya is an academic researcher from Kyushu University. The author has contributed to research in topics: Excited state & Hydrogen bond. The author has an hindex of 29, co-authored 155 publications receiving 2824 citations. Previous affiliations of Hiroshi Sekiya include Tokyo University of Agriculture and Technology.
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Infrared spectra and structures of aniline+–furan and aniline+–phenol : Preference between π-type and σ-type hydrogen-bonded structures
TL;DR: In this paper, the infrared photodissociation spectra of aniline + -M (M=thiophene, furan and phenol) were measured in the 2700-3700 cm −1 region and analyzed by density functional theory calculations.
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Charge-transfer excitation of CS2+(ÖX) band by CO+ ions at thermal energy
Masaharu Tsuji,Kazumi Mizukami,Hiroshi Sekiya,Hiroshi Obase,Shinichi Shimada,Yukio Nishimura +5 more
TL;DR: In this article, the CS 2 + (A-X) emission system is detected from the reaction CO + (X: ν′ = 0) + CS 2 in a flowing afterglow.
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Electronic spectra of two long-lived photoproducts: double-proton transfer in 7-hydroxyquinoline dimer in a 2-methyltetrahydrofuran glass matrix.
Yuko Nagai,Kenichiro Saita,Kenji Sakota,Shinkoh Nanbu,Masahiko Sekine,Munetaka Nakata,Hiroshi Sekiya +6 more
TL;DR: Photoreactions of 7-hydroxyquinoline in low-temperature (77-100 K) 2-methyltetrahydrofuran glass matrices are investigated using electronic spectroscopy and temperature dependence of the fluorescence excitation spectra showed the occurrence of keto --> enol isomerization in the S(0) state of (7-HQ)(2) due to a back double-proton transfer.
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Electronic absorption spectra of photoreaction intermediates of 7-hydroxyquinoline monomer in a low-temperature argon matrix and time-dependent density-functional-theory calculations
TL;DR: In this article, the electronic absorption spectra of three unstable species generated by UV-light irradiation were measured and compared with the calculated spectral patterns obtained by the time-dependent density-functional-theory calculation.
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Structure and hydrogen-bonding interactions in jet-cooled tropolone–acetone
TL;DR: The electronic spectrum of a jet-cooled tropolone-acetone 1:1 complex has been measured to examine the effects of the intermolecular hydrogen bond on the intramolecular bond of the complex as mentioned in this paper, and the stable structure, vibrational frequencies and spectral shift have been discussed by combining the experimental results with ab initio data.