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Ryohei Kishi
Ryohei Kishi
Graduate School of Engineering Science, Osaka University
Verified email at cheng.es.osaka-u.ac.jp
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Cited by
Cited by
Year
Second hyperpolarizability (γ) of singlet diradical system: dependence of γ on the diradical character
M Nakano, R Kishi, T Nitta, T Kubo, K Nakasuji, K Kamada, K Ohta, ...
The Journal of Physical Chemistry A 109 (5), 885-891, 2005
3162005
Strong two‐photon absorption of singlet diradical hydrocarbons
K Kamada, K Ohta, T Kubo, A Shimizu, Y Morita, K Nakasuji, R Kishi, ...
Angewandte Chemie International Edition 46 (19), 3544-3546, 2007
2802007
Relationship between third-order nonlinear optical properties and magnetic interactions in open-shell systems: a new paradigm for nonlinear optics
M Nakano, R Kishi, S Ohta, H Takahashi, T Kubo, K Kamada, K Ohta, ...
Physical review letters 99 (3), 033001, 2007
2772007
Synthesis and characterization of quarteranthene: elucidating the characteristics of the edge state of graphene nanoribbons at the molecular level
A Konishi, Y Hirao, K Matsumoto, H Kurata, R Kishi, Y Shigeta, M Nakano, ...
Journal of the American Chemical Society 135 (4), 1430-1437, 2013
2112013
Indeno[2,1‐b]fluorene: A 20‐π‐Electron Hydrocarbon with Very Low‐Energy Light Absorption
A Shimizu, R Kishi, M Nakano, D Shiomi, K Sato, T Takui, I Hisaki, ...
Angewandte Chemie 125 (23), 6192-6195, 2013
2052013
Singlet diradical character from experiment
K Kamada, K Ohta, A Shimizu, T Kubo, R Kishi, H Takahashi, E Botek, ...
The Journal of Physical Chemistry Letters 1 (6), 937-940, 2010
1752010
Second hyperpolarizabilities of polycyclic aromatic hydrocarbons involving phenalenyl radical units
M Nakano, T Kubo, K Kamada, K Ohta, R Kishi, S Ohta, N Nakagawa, ...
Chemical physics letters 418 (1-3), 142-147, 2006
1412006
Impact of diradical character on two-photon absorption: bis (acridine) dimers synthesized from an allenic precursor
K Kamada, S Fuku-en, S Minamide, K Ohta, R Kishi, M Nakano, ...
Journal of the American Chemical Society 135 (1), 232-241, 2013
1162013
(Hyper) polarizability density analysis for open-shell molecular systems based on natural orbitals and occupation numbers
M Nakano, H Fukui, T Minami, K Yoneda, Y Shigeta, R Kishi, ...
Theoretical Chemistry Accounts 130 (4), 711-724, 2011
1162011
Giant enhancement of the second hyperpolarizabilities of open-shell singlet polyaromatic diphenalenyl diradicaloids by an external electric field and donor–acceptor substitution
M Nakano, T Minami, K Yoneda, S Muhammad, R Kishi, Y Shigeta, ...
The Journal of Physical Chemistry Letters 2 (9), 1094-1098, 2011
1152011
Theoretical study of third-order nonlinear optical properties in square nanographenes with open-shell singlet ground states
M Nakano, H Nagai, H Fukui, K Yoneda, R Kishi, H Takahashi, A Shimizu, ...
Chemical Physics Letters 467 (1-3), 120-125, 2008
1122008
Origin of the enhancement of the second hyperpolarizability of singlet diradical systems with intermediate diradical character
M Nakano, R Kishi, S Ohta, A Takebe, H Takahashi, S Furukawa, T Kubo, ...
The Journal of chemical physics 125 (7), 074113, 2006
1072006
Signature of multiradical character in second hyperpolarizabilities of rectangular graphene nanoflakes
H Nagai, M Nakano, K Yoneda, R Kishi, H Takahashi, A Shimizu, T Kubo, ...
Chemical Physics Letters 489 (4-6), 212-218, 2010
1062010
Second hyperpolarizabilities (γ) of bisimidazole and bistriazole benzenes: diradical character, charged state, and spin state dependences
M Nakano, R Kishi, N Nakagawa, S Ohta, H Takahashi, S Furukawa, ...
The Journal of Physical Chemistry A 110 (12), 4238-4243, 2006
1062006
Long-range corrected density functional theory study on static second hyperpolarizabilities of singlet diradical systems
R Kishi, S Bonness, K Yoneda, H Takahashi, M Nakano, E Botek, ...
The Journal of chemical physics 132 (9), 094107, 2010
962010
Theoretical study on the second hyperpolarizabilities of phenalenyl radical systems involving acetylene and vinylene linkers: diradical character and spin multiplicity dependences
S Ohta, M Nakano, T Kubo, K Kamada, K Ohta, R Kishi, N Nakagawa, ...
The Journal of Physical Chemistry A 111 (18), 3633-3641, 2007
942007
Theoretical study on third-order nonlinear optical properties in hexagonal graphene nanoflakes: Edge shape effect
H Nagai, M Nakano, K Yoneda, H Fukui, T Minami, S Bonness, R Kishi, ...
Chemical Physics Letters 477 (4-6), 355-359, 2009
812009
Thiophene and its sulfur inhibit indenoindenodibenzothiophene diradicals from low-energy lying thermal triplets
JJ Dressler, M Teraoka, GL Espejo, R Kishi, S Takamuku, ...
Nature Chemistry 10 (11), 1134-1140, 2018
802018
A new type of organic–inorganic hybrid NLO-phore with large off-diagonal first hyperpolarizability tensors: a two-dimensional approach
S Muhammad, H Xu, Z Su, K Fukuda, R Kishi, Y Shigeta, M Nakano
Dalton Transactions 42 (42), 15053-15062, 2013
792013
Tuned CAM-B3LYP functional in the time-dependent density functional theory scheme for excitation energies and properties of diarylethene derivatives
K Okuno, Y Shigeta, R Kishi, H Miyasaka, M Nakano
Journal of Photochemistry and Photobiology A: Chemistry 235, 29-34, 2012
732012
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