A04 Masayuki Nihei

Masayuki Nihei		A04 Planning
Affiliation	Faculty of Pure and Applied Sciences, University of Tsukuba
Position	Professor
Contact	nihei@chem.tsukuba.ac.jp
HP	http://www.chem.tsukuba.ac.jp/oshio/index_E.html
Research Project	Creation of Anisotropic Electronic Functions Based on Assembling Asymmetric Electron Transfer Unit
Co-Investigator	Hiroki Oshio (Professor, Faculty of Pure and Applied Sciences, University of Tsukuba) Takuya Shiga (Assistant Professor, Faculty of Pure and Applied Sciences, University of Tsukuba)
Abstract	Our research project focuses on the asymmetric electron-transfer system based on the controlled coordination structures. We construct electronically asymmetric units exhibiting controlled molecular symmetry based on the directional electron transfer-induced electronic rearrangements. Furthermore, anisotropic assembly of the units into low dimensional aggregates will be investigated towards novel anisotropic electronic functions based on the controlled electric- and magnetic dipole moments within the assemblies. Specifically, we investigate the following subjects. 1) Development of electronically asymmetric units exhibiting controlled molecular symmetry induced by external stimuli, 2) Creation of dimensionally controlled assemblies of electronically asymmetric units using hydrogen- and coordination bonds, 3) Exploration of novel anisotropic electronic functions based on directional electron transfers within the assemblies.
Research Areas	Coordination Chemistry, Inorganic Chemistry, Electrochemistry, Molecular Magnetism
Keywords	Electron transfers, Multi-nuclear complexes, Low dimensional aggregates, external stimuli-responsive materials

2019

[7] Intramolecular Electron Transfers in a series of [Co₂Fe₂] Tetranuclear Complexes,
Masayuki Nihei; Karin Shiroyanagi; Marina Kato; Ryo Takayama; Haruki Murakami; Yosuke Kera; Yoshihiro Sekine; Hiroki Oshio, Inorg. Chem., 58, 11912 – 11919, 2019
DOI: 10.1021/acs.inorgchem.9b00776.

[6] Solid State Hydrogen Bond Alterations in a [Co₂Fe₂] Complex with Bifunctional Hydrogen Bonding Donors,
Masayuki Nihei; Yuta Yanai; Dominik Natke; Ryo Takayama; Marina Kato; Yoshihiro Sekine; Franz Renz; Hiroki Oshio, Chem. Eur. J., 25, 7449 – 7452, 2019
DOI: 10.1002/chem.201901383.

2018

[5] Ferrihydrite Particle Encapsulated within a Molecular Organic Cage,
Masayuki Nihei; Hiromichi Ida; Takayuki Nibe; Adhitya M. P. Moeljadi; Quang T. Trinh; Hajime Hirao; Manabu Ishizaki; Masato Kurihara; Takuya Shiga; Hiroki Oshio, J. Am. Chem. Soc., 140, 50, 17753 – 17759, 2018
DOI: 10.1021/jacs.8b10957.

2017

[4] Dimensionally Controlled Assembly of an External Stimuli-Responsive [Co₂Fe₂] Complex into Supramolecular Hydrogen-Bonded Networks,
Yoshihiro Sekine; Masayuki Nihei; Hiroki Oshio, Chem. Eur. J., 23, 22, 5193 – 5197, 2017
DOI: 10.1002/chem.201605817.

[3] A Multi-Redox Responsive Cyanometalate-Based Metallogel,
Kiyotaka Mitsumoto; Mamie M. Cameron; Rong-Jia Wei; Hiroyuki Nishikawa; Takuya Shiga; Masayuki Nihei; Graham N. Newton; Hiroki Oshio, Chem. Eur. J., 23, 7, 1502 – 1506, 2017
DOI: 10.1002/chem.201605542.

[2] Hydrogen-Bonded Cyanide-Bridged [Co₂Fe₂] Square Exhibiting Three-Step Spin Transition,
Masayuki Nihei; Yuta Yanai; I.-Jui Hsu; Yoshihiro Sekine; Hiroki Oshio, Angew. Chem. Int. Ed., 56, 2, 591 – 594, 2017
DOI: 10.1002/anie.201610268.

2016

[1] Ambient-Temperature Spin-State Switching Achieved by Protonation of the Amino Group in [Fe(H₂Bpz₂)₂(bipy-NH₂)],
Yang-Hui. Luo; Masayuki Nihei; Gao-Ju Wen; Bai-Wang Sun; Hiroki Oshio, Inorg. Chem., 55, 16, 8147 – 8152, 2016
DOI: 10.1021/acs.inorgchem.6b01193.