Carrier doping effect into quasi-one-dimensional bromo-bridged Ni(III) complexes with strong electron-correlation by Cu(II) ions, [Ni1-xCux(chxn)2Br]Br2-x.
This communication will describe the electron doping effect into Ni(III) complexes by Cu(II) ions, [Ni(1-x)Cu(x)(chxn)(2)Br]Br(2-x) (x = 0.038 and 0.101) by using an electrochemical oxidation method. A drastic increase of electrical conductivity as well as a new absorption band around 0.5 eV in single crystal reflectance spectra was observed by doping Cu(II) ions, indicating the electron doping was successfully made. An ESR result shows unpaired electrons locate in the d(x2-y2) orbitals of Cu(II) and have almost no interaction with those of other ions.
Yamashita
Masahiro
M
Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University and CREST (JST), 1-1 Minamiosawa, Hachioji 192-0397, Japan. yamashiT@comp.metro-u.ac.jp
Ono
Takashi
T
Matsunaga
Satoshi
S
Sasaki
Mari
M
Takaishi
Shinya
S
Iwahori
Fumiyasu
F
Miyasaka
Hitoshi
H
Sugiura
Ken-ihi
KI
Kishida
Hideo
H
Okamoto
Hiroshi
H
Tanaka
Hisaaki
H
Hasegawa
Yasuhisa
Y
Marumoto
Kazuhiro
K
Ito
Hiroshi
H
Kuroda
Sin-Ichi
S
Kimura
Noriyoshi
N