Ryohei Kishi

J-GLOBAL         Last updated: Jun 10, 2019 at 14:59
 
Avatar
Name
Ryohei Kishi
E-mail
rkishicheng.es.osaka-u.ac.jp
Affiliation
Osaka University
Section
Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science
Research funding number
90452408
ORCID ID
0000-0002-6005-7629

Profile

Ryohei Kishi was born in May 1981, in Hyogo, JAPAN. He accomplished his master degree from Osaka University in 2006. During doctor course in Osaka University, he was selected as a research fellowship for young scientist at Japan Society for the Promotion of Science (JSPS) from 2006 to 2007. In February 2007, he became a research associate of Department of Materials Engineering Science at Graduate School of Engineering Science, Osaka University. Since April 2007, he is an assistant professor at Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University. He received his Ph.D. in 2009 from Osaka University under the supervision of Professor Dr. Masayoshi Nakano. The title of his Ph.D. thesis was "Development of Theoretical Method for Electron Dynamics and Its Application to Energy Migration and Optical Responses". His recent research projects especially focus on, (1) development of theoretical method for coherent and incoherent electron dynamics and its application to optical responses and carrier transfer processes, (2) modeling linear and nonlinear optical spectra of closed- and open-shell molecular and periodic systems, (3) theoretical designing for versatile functional molecular materials.

Research Areas

 
 

Academic & Professional Experience

 
Apr 2007
 - 
Today
Assistant Professor, Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
 
Feb 2007
 - 
Mar 2007
Research Associate, Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
 
Apr 2006
 - 
Jan 2007
Research Fellowship for Young Scientists (DC1), JSPS
 

Education

 
Apr 2006
 - 
Jan 2007
Division of Chemical Engineering, Department of Materials Engineering Science (Doctoral Course), Graduate School of Engineering Science, Osaka University
 
Apr 2004
 - 
Mar 2006
Division of Chemical Engineering, Department of Materials Engineering Science (Master's Course), Graduate School of Engineering Science, Osaka University
 
Apr 2000
 - 
Mar 2004
Deptartment of Chemical Science and Engineering, School of Engineering Science, Osaka University
 

Awards & Honors

 
2012
Presentation Award in Annual Meeting of Japan Society for Molecular Science (2012), Japan Society for Molecular Science
 
2009
CSJ Presentation Award 2009, The Chemical Society of Japan
 

Published Papers

 
Takeaki Iwamoto, Takashi Abe, Kunihisa Sugimoto, Daisuke Hashizume, Hiroshi Matsui, Ryohei Kishi, Masayoshi Nakano, Shintaro Ishida
Angewandte Chemie - International Edition   58 4371-4375   Mar 2019
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Bicyclo[1.1.0]tetrasil-1(3)-ene 1, a tetrasilicon analogue of bicyclo[1.1.0]but-1(3)-ene that contains a formal double bond between bridgehead silicon atoms in an inverted geometry, was synthesiz...
Dennis Rottschäfer, Beate Neumann, Hans Georg Stammler, Ryohei Kishi, Masayoshi Nakano, Rajendra S. Ghadwal
Chemistry - A European Journal   25 3244-3247   Mar 2019
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Para-quinodimethane (pQDM) is a fundamental structural component in many π-conjugated organic molecules and materials. The incorporation of phosphorus atom into π-conjugated frameworks offers un...
Masayoshi Nakano, Kenji Okada, Takanori Nagami, Takayoshi Tonami, Ryohei Kishi, Yasutaka Kitagawa
Molecules   24    Feb 2019
© 2019 by the authors. We have developed a Monte Carlo wavefunction (MCWF) approach to the singlet fission (SF) dynamics of linear aggregate models composed of monomers with weak diradical character. As an example, the SF dynamics for a pentacene ...
Akihito Konishi, Yui Okada, Ryohei Kishi, Masayoshi Nakano, Makoto Yasuda
Journal of the American Chemical Society      Jan 2019   [Refereed]
Dennis Rottschäfer, Jasmin Busch, Beate Neumann, Hans Georg Stammler, Maurice van Gastel, Ryohei Kishi, Masayoshi Nakano, Rajendra S. Ghadwal
Chemistry - A European Journal   24 16537-16542   Nov 2018
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Two-fold C−C cross-coupling of N-heterocyclic carbenes [NHCs; SIPr=C(NArCH2)2, 1; IPr=C(NArCH)2, 2; Me-IPr=C(NArCMe)2, 3; Ar=2,6-iPr2C6H3] with 4,4′′-diiodo-p-terphenyl under Ni catalysis furnish...
Jun Ya Fujiyoshi, Takayoshi Tonami, Masaki Yamane, Kenji Okada, Ryohei Kishi, Shabbir Muhammad, Shabbir Muhammad, Abdullah G. Al-Sehemi, Abdullah G. Al-Sehemi, Ryo Nozawa, Hiroshi Shinokubo, Masayoshi Nakano, Masayoshi Nakano, Masayoshi Nakano
ChemPhysChem   19 2863-2871   Nov 2018
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim From the analysis based on the broken-symmetry density functional theory (DFT) calculations, we in this study propose a strategy to enhance the open-shell characters and third-order nonlinear opt...
Justin J. Dressler, Mitsuru Teraoka, Guzmán L. Espejo, Ryohei Kishi, Shota Takamuku, Carlos J. Gómez-García, Lev N. Zakharov, Masayoshi Nakano, Masayoshi Nakano, Masayoshi Nakano, Juan Casado, Michael M. Haley
Nature Chemistry   10 1134-1140   Nov 2018
© 2018, The Author(s), under exclusive licence to Springer Nature Limited. Many qualitative structure–property correlations between diradical character and emerging molecular properties are known. For example, the increase of diradical character f...
Masaki Yamane, Ryohei Kishi, Takayoshi Tonami, Kenji Okada, Takanori Nagami, Yasutaka Kitagawa, Yasutaka Kitagawa, Masayoshi Nakano, Masayoshi Nakano, Masayoshi Nakano
Asian Journal of Organic Chemistry   7 2320-2329   Nov 2018
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Geometric features, electronic structures and third-order nonlinear optical (NLO) properties of belt-shaped hydrocarbons, namely, carbon nanobelts, are investigated by using the density functiona...
Shabbir Muhammad, Shabbir Muhammad, Masayoshi Nakano, Masayoshi Nakano, Masayoshi Nakano, Abdullah G. Al-Sehemi, Abdullah G. Al-Sehemi, Ahmad Irfan, Ahmad Irfan, Aijaz Rasool Chaudhry, Takayoshi Tonami, Soichi Ito, Ryohei Kishi, Yasutaka Kitagawa, Yasutaka Kitagawa
Nanoscale   10 16499-16507   Sep 2018
© The Royal Society of Chemistry 2018. Contrary to the enormous number of previous studies on carbon nanotubes (CNTs), herein, we realized the origin of the intrinsic open-shell diradical character and second hyperpolarizability γ using a broken s...
Takanori Nagami, Jun ya Fujiyoshi, Takayoshi Tonami, Ken ichiro Watanabe, Masaki Yamane, Kenji Okada, Ryohei Kishi, Masayoshi Nakano, Masayoshi Nakano, Masayoshi Nakano, Benoît Champagne, Vincent Liégeois
Chemistry - A European Journal   24 13457-13466   Sep 2018
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim The aromaticity of dicyclopenta-fused acenes (DPAs) and polyacenes (PAs) of increasing size has been studied by evaluation with the GIMIC method at the DFT level of the magnetically-induced curre...
Takuya Yoshida, Kohtaro Takahashi, Yuki Ide, Ryohei Kishi, Jun Ya Fujiyoshi, Sangsu Lee, Yuya Hiraoka, Dongho Kim, Masayoshi Nakano, Takahisa Ikeue, Hiroko Yamada, Hiroshi Shinokubo
Angewandte Chemie - International Edition   57 2209-2213   Feb 2018
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Fused benzene rings to antiaromatic compounds generally improve their stability but attenuate their antiaromaticity. The opposite case is now reported. NiIIbenzonorcorroles were synthesized and t...
Yuka Minamida, Ryohei Kishi, Kotaro Fukuda, Hiroshi Matsui, Shota Takamuku, Masaki Yamane, Takayoshi Tonami, Masayoshi Nakano, Masayoshi Nakano
Chemistry - A European Journal   24 1913-1921   Feb 2018
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Tunability of the open-shell character, charge asymmetry, and third-order nonlinear optical (NLO) properties of covalently linked (hetero)phenalenyl dimers are investigated by using the density f...
Takanori Nagami, Jun ya Fujiyoshi, Takayoshi Tonami, Ken ichiro Watanabe, Masaki Yamane, Kenji Okada, Ryohei Kishi, Masayoshi Nakano, Masayoshi Nakano, Masayoshi Nakano, Benoît Champagne, Vincent Liégeois
Chemistry - A European Journal      Jan 2018
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim The aromaticity of dicyclopenta-fused acenes (DPAs) and polyacenes (PAs) of increasing size has been studied by evaluation with the GIMIC method at the DFT level of the magnetically-induced curre...
Masayoshi Nakano, Takanori Nagami, Takayoshi Tonami, Kenji Okada, Soichi Ito, Soichi Ito, Ryohei Kishi, Yasutaka Kitagawa, Yasutaka Kitagawa, Takashi Kubo
Journal of Computational Chemistry      Jan 2018
© 2018 Wiley Periodicals, Inc. The singlet fission (SF) dynamics of pentacene linear aggregate models are investigated using the quantum master equation method by focusing on the Frenkel excitonic (FE) coupling effects on the SF rate and double tr...
Justin J. Dressler, Zheng Zhou, Jonathan L. Marshall, Ryohei Kishi, Shota Takamuku, Zheng Wei, Sarah N. Spisak, Masayoshi Nakano, Marina A. Petrukhina, Michael M. Haley
Angewandte Chemie - International Edition   56 15363-15367   Nov 2017
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Of the five possible indenofluorene regioisomers, examples of a fully conjugated indeno[1,2-a]fluorene scaffold have so far remained elusive. This work reports the preparation and characterizatio...
Kazukuni Tahara, Kazukuni Tahara, Hiroyoshi Kozuma, Varadhachari Venkatesh, Eri Ryomura, Hirokazu Miyoshi, Keigo Nakamachi, Ryohei Kishi, Hideaki Takahashi, Masayoshi Nakano, Masayoshi Nakano, Yoshito Tobe, Yoshito Tobe
ChemPlusChem   82 1052-1056   Aug 2017
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim A dehydrobenzo[12]annulene attached by three platinum catecholate units is oxidized chemically or electrochemically to generate mono-, di-, and trications. Similarly, a platinum catecholate compl...
Yuka Minamida, Hiroshi Matsui, Kotaro Fukuda, Takanori Nagami, Jun Ya Fujiyoshi, Kyohei Yoneda, Shota Takamuku, Ryohei Kishi, Yasutaka Kitagawa, Yasutaka Kitagawa, Masayoshi Nakano, Masayoshi Nakano
Journal of Physical Chemistry A   121 4171-4179   Jun 2017
© 2017 American Chemical Society. Using the spin-unrestricted density functional theory method, we investigate the interplay between the diradical character y and second hyperpolarizabilities γ (the third-order nonlinear optical (NLO) properties a...
Kotaro Fukuda, Jun Ya Fujiyoshi, Yuka Minamida, Takanori Nagami, Hiroshi Matsui, Soichi Ito, Ryohei Kishi, Yasutaka Kitagawa, Benoît Champagne, Masayoshi Nakano
Journal of Physical Organic Chemistry   30    Apr 2017
Copyright © 2016 John Wiley & Sons, Ltd. Open-shell singlet nature, aromaticity, and second hyperpolarizabilities of two kinds of curved π-conjugated fragments of C60fullerene, called C60flakes, together with their corresponding planar analogues...
Hirokazu Miyoshi, Masahito Miki, Shintaro Hirano, Akihiro Shimizu, Akihiro Shimizu, Ryohei Kishi, Kotaro Fukuda, Daisuke Shiomi, Kazunobu Sato, Takeji Takui, Ichiro Hisaki, Masayoshi Nakano, Masayoshi Nakano, Yoshito Tobe, Yoshito Tobe
Journal of Organic Chemistry   82 1380-1388   Feb 2017
© 2017 American Chemical Society. The dimesityl derivative of fluoreno[2,3-b]fluorene (6b) was synthesized and its structure and physical properties were investigated to elucidate the effects of its enhanced open-shell character, which was predict...
Ryohei Kishi, Tsubasa Katsurayama, Shoki Ochi, Akihiro Makino, Naoyuki Matsushita, Michika Saito, Takanori Nagami, Jun Ya Fujiyoshi, Masayoshi Nakano, Masayoshi Nakano
ChemistryOpen   6 506-513   Jan 2017
© 2017 The Authors. The diradical characters (y) and third-order nonlinear optical (NLO) properties of open-shell quinoidal oligothiophene derivatives with phenoxyl groups, and the corresponding reduced (hydrogenated)-state oligomers, are investig...

Conference Activities & Talks

 
Molecular and periodic systems with open-shell electronic structures: From geometric and energetic features to response properties [Invited]
Ryohei Kishi
The 4th China-Japan-Korea Workshop on Theoretical and Computational Chemistry (CJK-WTCC-IV)   11 Jan 2019   
Theoretical Study on the Optical Response Properties of One-Dimensional Molecular Crystals Composed of Open-Shell Molecules
Ryohei Kishi, Takayoshi Tonami, Masaki Yamane, Kenji Okada, Masayoshi Nakano
FUKUI 2018 Satellite Sympoisum, A Satellite Symposium to celebrate Prof. Kenichi Fukui's 100th birthday   13 Oct 2018   
Singlet Fission Dynamics in Molecular Aggregates: Excitonic Coupling Effects on the Size Dependences of SF Rate and TT Yield [Invited]
M. Nakano, T. Nagami, T. Tonami, K. Watanabe, M. Yamane, S. Ito, R. Kishi, K. Yasutaka, T. Kubo
7th JCS Symposium   21 May 2018   
Theoretical study on nonlinear optical properties of covalent organic frameworks composed of open-shell molecules
Ryohei Kishi, Takayoshi Tonami, Masaki Yamane, and Masayoshi Nakano
Theoretical Studies of Magnetuc Systems: Methodological Developments and Applications. (Satellite Symposium of ICQC 2018)   13 Jun 2018   
Theoretical study on electronic structures and nonlinear optical properties of covalent organic frameworks composed of open-shell molecules
Ryohei Kishi, Takayoshi Tonami, Masaki Yamane, Masayoshi Nakano
16TH International Congress of Quantum Chemistry   18 Jun 2018   
A Potential of Enhancing Nonlinear Optical Properties of Pentacene Dimers by Singlet Fission
Takayoshi Tonami, Takanori Nagami, Masaki Yamane, Ryohei Kishi, Masayoshi Nakano
16TH International Congress of Quantum Chemistry   18 Jun 2018   

Research Grants & Projects

 
MEXT: Grant-in-Aid for Scientific Research on Innovative Areas
Project Year: Apr 2014 - Mar 2015    Investigator(s): Yasuteru Shigeta
The Ministry of Education,Culture,Sports,Science and Technology: Grant-in-Aid for Scientific Research on Innovative Areas
Project Year: Apr 2014 - Mar 2015    Investigator(s): Ryohei Kishi
JSPS: Grant-in-Aid for Young Scientists (B)
Project Year: Apr 2012 - Mar 2014    Investigator(s): Ryohei Kishi
Toyota Physical and Chemical Research Institute: Toyota Riken Scholar
Project Year: Apr 2011 - Mar 2012    Investigator(s): Ryohei Kishi
MEXT: Grant-in-Aid for Scientific Research on Priority Areas
Project Year: Apr 2008 - Mar 2009    Investigator(s): Masayoshi Nakano