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Dive into the research topics where Yasuyoshi Sayama is active.

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Featured researches published by Yasuyoshi Sayama.


Bulletin of the Chemical Society of Japan | 1998

Structure and Magnetic Properties of a Chain Complex with Alternating Ru(II,III) Dimer and Nitroxide Radical Arrangement [Ru2(O2CCMe3)4(nitph)]n(BF4)n, nitph = 2-Phenyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl 3-N-Oxide

Makoto Handa; Yasuyoshi Sayama; Masahiro Mikuriya; Ryoji Nukada; Ichiro Hiromitsu; Kuninobu Kasuga


Bulletin of the Chemical Society of Japan | 1995

Structure and Magnetic Properties of a Nitroxide Diruthenium(II,III) Complex, [Ru2(O2CCMe3)4(tempo)2][Ru2(O2CCMe3)4(H2O)2](BF4)2 (tempo = 2,2,6,6-Tetramethylpiperidine-1-oxyl)

Makoto Handa; Yasuyoshi Sayama; Masahiro Mikuriya; Ryoji Nukada; Ichiro Hiromitsu; Kuninobu Kasuga


Bulletin of the Chemical Society of Japan | 2000

Antiferromagnetic Adducts of Copper(II) Propionate with Pyridyl Nitronyl Nitroxides

Masahiro Mikuriya; Hiroshi Azuma; Ryoji Nukada; Yasuyoshi Sayama; Katsunori Tanaka; Jong-Wan Lim; Makoto Handa


Bulletin of the Chemical Society of Japan | 2000

Structures and Magnetic Properties of Ruthenium(II,III) Pivalate Cation Dimers Axially Coordinated by Pyridyl Nitronyl Nitroxide Radicals through Their Pyridyl Nitrogen Atoms

Yasuyoshi Sayama; Makoto Handa; Masahiro Mikuriya; Ichiro Hiromitsu; Kuninobu Kasuga


Bulletin of the Chemical Society of Japan | 2003

Syntheses and Magnetic Properties of Ruthenium(II,III) Pivalate Dimers Axially Coordinated by Nitronyl Nitroxide Radicals [Ru2(O2CCMe3)4(L)2]BF4and [{Ru2(O2CCMe3)4(L)2}{Ru2(O2CCMe3)4(H2O)2}]n(BF4)2n, L = 2,4,4,5,5-Pentamethyl-4,5-dihydro-1H-imidazol-1-oxyl-3-N-oxide and 2-Ethyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl-3-N-oxide

Yasuyoshi Sayama; Makoto Handa; Masahiro Mikuriya; Ichiro Hiromitsu; Kuninobu Kasuga


Chemistry Letters | 1998

Ferromagnetic Chain Complex of Ruthenium(II,III) Pivalate with Pyridyl Nitronyl Nitroxide.

Yasuyoshi Sayama; Makoto Handa; Masahiro Mikuriya; Ichiro Hiromitsu; Kuninobu Kasuga


Chemistry Letters | 1999

Chain Compound of Mixed-Valent Ruthenium Dimers Linked by Hydrogen-Bonding between the Axially Coordinated Nitronyl Nitroxide and Water Molecules

Yasuyoshi Sayama; Makoto Handa; Masahiro Mikuriya; Ichiro Hiromitsu; Kuninobu Kasuga


Chemistry Letters | 1999

A New “Dimer-of-Dimers” Complex Derived from Axial Coordination of 7,7,8,8-Tetracyanoquinodimethane to Ru(II,III) Cation Dimer

Makoto Handa; Daisuke Yoshioka; Yasuyoshi Sayama; Kimie Shiomi; Masahiro Mikuriya; Ichiro Hiromitsu; Kuninobu Kasuga


Chemistry Letters | 1996

A Chain Complex of Ruthenium(II,III) Cation Dimer Linked by a Nitroxide Radical, [Ru2(O2CCMe3)4(NITPh)n(BF4)n (NITPh = 2-Phenyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-oxy-3-oxide)

Makoto Handa; Yasuyoshi Sayama; Masahiro Mikuriya; Ryoji Nukada; Ichiro Hiromitsu; Kuninobu Kasuga


Bulletin of the Chemical Society of Japan | 1996

Synthesis and Characterization of Thiolato-Bridged Trinuclear Heterometal Complexes with 2-((3-Aminopropyl)amino)ethanethiol.

Masahiro Mikuriya; Hideyuki Tsutsumi; Ryoji Nukada; Makoto Handa; Yasuyoshi Sayama

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Ryoji Nukada

Kwansei Gakuin University

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Hiroshi Azuma

Kwansei Gakuin University

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Jong-Wan Lim

Kyungpook National University

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