PUBLICATION / 論文

2022

Yoriko Sonoda, Ryuzi Katoh, Norimitu Tohnai, Tomoaki Yago, and Masanobu Wakasa "Singlet Fission in Solid 1,6-Diphenyl-1,3,5-hexatriene Dicarboxylic Acids and Esters: Effects of meta- and para- Substitution" J. Phys. Chem. C 126, 8742 (2022).
 
・Tomoaki Yago, Manami Tashiro, Kiichi Hasegawa, Masao Gohdo, Syuta Tsuchiya, Tadaaki Ikoma and Masanobu Wakasa "Triplet−Triplet Annihilation via the Triplet Channel in Crystalline 9,10-Diphenylanthracene" J. Phys. Chem. Lett. 13, 8768-8774 (2022).

2021 

・Nanshi Harada, Taisuke Matsuo, Tomoaki Yago, Kiminori Maeda, and Masanobu Wakasa "Low Magnetic Field Effects on Photoinduced Electron Transufer Reaction in an Ionic Liquid" Chem. Phys. Lett. 733, 138569 (2021)

2020 

・Kazuhiko Seki, Tomomi Yoshida, Tomoaki Yago, Masanobu Wakasa and Ryuzi Katoh "Geminate Delayed Fluorescence by Anisotropic Diffusion-Mediated Reversible Singlet Fission and Triplet Fusion" J. Phys. Chem. C, 125, 3295-3304 (2021)

2019 

・Hikaru Tsuchida, Tomoaki Yago, Masanobu Wakasa "Diffusion of Radical Ions in Ionic Liquids Having Long Alkyl Chains" J. Phys Chem. B, 123, 8425-8432 (2019)

2018 

・Kei Ishikawa, Tomoaki Yago, Masanobu Wakasa "Exploring the Structure of an Exchange Coupled Triplet Pair Generated by Singlet Fission in Crystalline Diphenylhexatriene: Anisotropic Magnetic Field Effects on Fluorescence in High Fields" J. Phys. Chem. C, 122, 22264-22272 (2018).

2017 

・Masanobu Wakasa, Tomoaki Yago, Yoriko Sonoda, Ryuzi Katoh "Structure and Dynamics of Triplet-Exciton Pairs Generated from Singlet Fission Studied via Magnetic Field Effects" Commun. Chem., 1, 9 (2018).
 
・Tomoaki Yago and Masanobu Wakasa "A Spin Exchange Model for Singlet Fission", Chem. Phys. Lett., 695, 240-244 (2018).
 
・Ryuzi Katoh, Masaaki Hashimoto, Akinori Takahashi, Yoriko Sonoda, Tomoaki Yago and Masanobu Wakasa "Singlet Fission in Fluorinated Diphenylhexatrienes", J. Phys. Chem. C, 121, 25666-25671 (2017).
 
・Masanobu Wakasa, Tomoaki Yago, Atom Hamasaki, and Masao Gohdo "Reactions in the Magnetic Field", in Encyclopedia of Physical Organic Chemistry; Z. Wang, U. Wille, E. Juaristi Eds.; John Wiley&Sons, New York 2017; Vol.2 pp1035-1126.

2016 

・Tomoaki Yago, Kei Ishikawa, Ryuzi Katoh, Masanobu Wakasa, "Magnetic Field Effects on Triplet Pair Generated by Singlet Fission in an Organic Crystal: Application of Radical Pair Model to Triplet Pair" J. Phys. Chem. C 120, 27858-27870 (2016).

2015

・Masanobu Wakasa, Mana Kaise, Tomoaki Yago, Ryuzi Katoh, Yusuke Wakikawa, Tadaaki Ikoma: What can be learned from magnetic field effects on singlet fission: Role of exchange interactions in excited triplet pairs. J. Phys. Chem. C 119, 25840-25844 (2015).
 
・Ryutaro Murata, Tomoaki Yago, Masanobu Wakasa: Photocyclization reactions of diarylethenes via the excited triplet state. J. Phys. Chem. A 119, 11138-11145 (2015).
 
・Tomoaki Yago, Ayuto Takashino, Masanobu Wakasa, "Time-Resolved Detection of Magnetic Field Effects on Radical Pairs in Micelles: Two-Step Two-Laser Fluorescence Spectroscopy of Transient Radicals", J. Phys. Chem. C 119, 20217–20223 (2015).
 
・Tomoaki Yago, Masanobu Wakasa, "A Practical Approach to Calculate the Time Evolutions of Magnetic Field Effects on Photochemical Reactions in Nano-Structured Materials", Phys. Chem. Chem. Phys., 17 9737-9747 (2015).

2014

・若狭雅信・矢後友暁 "30T強磁場を用いたスピンダイナミクス測定とナノ反応場解析" 応用物理 83, 218-221 (2014).
 
・Tomoaki Yago, Yuya Ishii, Masanobu Wakasa, "Diffusion and Solvation of Radical Ions in an Ionic Liquid Studied by the MFE Probe", J. Phys. Chem. C, 118 22356 (2014).

2012

・Miyuki Tanaka, Tomoaki Yago, Masanobu Wakasa, "Local Structure of Ionic Liquids Probed by Self-quenching of Thiobenzophenone", Phys. Chem. Chem. Phys., 15, 785-794 (2013). 
 
・Tomohide Okada, Tomoaki Yago, Tadashi Takamasu, Masanobu Wakasa, "Cage Lifetime of Ionic Liquids as Studied by the Magnetic Field Effect Probe", Phys. Chem. Chem. Phys., 14, 3490-3497 (2012).

2011

・Tomoaki.Yago, Atom Hamasaki, Miyuki Tanaka, Tadashi Takamasu, Masanobu Wakasa, Magnetic Field Effects on Photochemical Reaction in Ionic Liquids with Short Alkyl Chains, JPhys. Chem. C. 115, 21063-21071 (2011).
 
・Ryutaro Murata, Tomoaki Yago, Masanobu Wakasa, Cyclization Reaction of Diarylethene through the Triplet Excited State, Bull. Chem. Soc. Jpn. in press (2011).
 
・Miyuki Tanaka, Tomoaki Yago, Yoshio Sakaguchi, Tadashi Takamasu, Masanobu Wakasa, Magnetic Field Effects on Hydrogen Abstraction of Thiobenzophenone as a Probe of Microviscosity, J. Phys. Chem. B. 115, 1936-1943 (2011).
 
・Tomoaki Yago, Masanobu Wakasa, Nanoscale Structure and Diffusion Process of Ionic Liquid as Studied by the MFE Probe,JPhys. Chem. C. 115, 2673-2678 (2011).
 
・Masao Gohdo, Tadashi Takamasu, Masanobu Wakasa,Photochemical Primary Process of Photo-Fries Rearrangement Reaction of 1-Naphthyl Acetate as Studied by MFE Probe, Phys. Chem. Chem. Phys.,13, 755-761 (2011).

2010

・Tomoaki Maeyama, Hiroki, Matsui, Tomoaki Yago, Masanobu Wakasa, Magnetic Field Effects on Photochemical Reaction in Masoporous Silicates of MCM-41 under High Magnetic Fields of up to 5 T, J. Phys. Chem. C.114, 22190–22196 (2010).
 
・Hiroshi Morita, Yu Aoki, Shigeru Takahara, Masanobu Wakasa, Fluorescent Spherical Particle Formationfrom Solid Polysilanes by the Aid of Laser Ablation and Photochemical Reaction, J. Photopolym. Sci. Technol., 123, 371-378 (2010).
 
・Saim Emin, Alexandre Loukanov, Masanobu Wakasa, Seiichiro Nakabayashi, Yasuko Kaneko, Photostability of Water Dispersible CdTe Quantum Dots: Capping Ligands and Oxygen,Chem. Lett., 39, 654-656 (2010).
 
・Tomoaki Yago,Masao Gohdo, Masanobu Wakasa, Hydrogen Bonding Effects on the Reorganization Energy for Photo-induced Charge Separation Reaction between Porphyrin and Quinone Studied by Nano-second Laser Flash Photolysis, J. Phys. Chem. B, 114, 2476-2483 (2010).
 
・Masao Gohdo, Masanobu Wakasa, Reexamination of the Photochemical Primary Process of Photo-Fries Rearrangement Reaction as Studied by MFE Probe, Chem. Lett., 39,106-107 (2010).

2009

・Miyuki Tanaka, Tomoaki Yago, Masanobu Wakasa, Primary Photochemical Process of Thiobenzophenone as Studied by Laser Flash Photolysis, Chem. Lett. 38, 1086-1087 (2009).
 
・Masanobu Wakasa, Tomoaki Yago, Atom Hamasaki, Nano-scale Heterogeneous Structure of Ionic Liquid as Revealed by Magnetic Field Effects, J. Phys. Chem. B, 113, 10559-10561 (2009).
 
・Tomoaki Yago, Masao Gohdo, Masanobu Wakasa, Ethanol Concentration Dependence of Photo-induced Charge Separation Reaction between Zinc Tetraphenylporphyrin and Duroquinone Studied by Laser Flash Photolysis, Chem. Lett.,38, 880-881(2009).

2008

・A. Hamasaki, T. Yago, M. Wakasa, Magnetic Field Effect on a Radical Pair Reactions as a Probe of Microviscosity, J. Phys. Chem. B, 112, 14185-14192 (2008).
 
・M. Gohdo, Y. Kitahama, Y. Sakaguchi, M. Wakasa, Magnetic Field Effects due to the Relaxation Mechanism Observed for the Photo-induced Electron Transfer Reaction of Zinc (II) Tetraphenylporphyrin and 2-Methyl-1,4-naphthoquinone, Journal of Photochemistry and Photobiology A: Chemistry 199,130-135 (2008).
 
・K. Mochida, Y. Masukawa, A. Yamada, M. Yanaga, M. Nanjo, H. Arii, M.Gohdo, M.Wakasa, Studies of Germanium–Platinum Bonds in Bis(aryl-substituted Germyl)platinum Complexes by Laser Flash Photolysis and Chemical Trapping Experiments, Chem. Lett. 37, 62-63 (2008).
 
・A. Hamasaki, T. Yago, T. Takamasu, G. Kido, M. Wakasa, Anomalous Magnetic Field Effects on the Photochemical Reactions in Ionic Liquid under Ultrahigh Fields of up to 28 T, J. Phys. Chem. B, 112, 3375-3379 (2008).

2007

・M. Wakasa, Magnetic Field Effects on Photochemical Reactions in Ionic Liquids, J. Phys. Chem. B, 111, 9434-9436 (2007).
 
・M. Wakasa,磁場中における触媒反応, ペトロテック, 30, 497-501 (2007).
 
・M. Wakasa, Y. Takamori, T. Takayanagi, M. Orihara, T. Kugita, Re-examination of the Photochemical Reaction of Octaisopropyl- cyclotetragermane, J. Organomet. Chem., 692, 2855-2860 (2007).

2006

・M. Okano, K. Nakamura, Y. Yamada, N. Hosoda, M. Wakasa, An improvement electrochemical synthesis of network polysilanes. Electrochemistry, 74, 956-958 (2006).
 
・M. Wakasa, Y. Kobayashi, M. Okano, 半導体酸化チタン薄膜による光触媒反応に対する磁場効果,日本写真学会誌,69, 271-275 (2006).
 
・A. Hamasaki, Y. Sakaguchi, K. Nishizawa, G. Kido, M. Wakasa, Magnetic Field Effects on the Reaction of a Triplet-born Radical Pair Consisting of Two Equivalent Sulfur-center Radicals, Mol. Phys., 104, 1765-1771 (2006).
 
・M. Wakasa, N. Ishii, M. Okano, Magnetic Field Effect on Photocatalytic Decomposition Reaction of tert-Butanol with Platinaized TiO2 Particles, Comptes Rendus, 9, 836-840 (2006).

2005

・A. Hamsaki, K. Nishizawa, Y. Sakaguchi, T. Okada, G. Kido, M. Wakasa, Anomalous Magnetic Field Effects Interpreted by the Relaxation Mechanism under Ultrahigh Fields of up to 28 T, Chem. Lett., 34, 1692-1693 (2005).

2004

・磁場による触媒反応の制御触媒, 46, 224-229 (2004).
 
・Y. Kitahama, M. Wakasa, Y. Sakaguchi, Viscosity Dependence of the Magnetic Field Effect Due to the Dg Mechanism, J. Phys. Chem. A, 108, 754-757 (2004).
 
・M. Wakasa, S. Suda, H. Hayashi, N. Ishii, M. Okano, Magnetic Field Effect on Photocatalytic Reaction with Ultra Fine TiO2 Particles, J. Phys. Chem. B, 108, 11882-11885 (2004).