TY - JOUR
T1 - Control of charge instabilities in quasi-one-dimensional halogen-bridged nickel compounds
AU - Yamashita, Masahiro
AU - Inoue, Kazuo
AU - Furuta, Takehisa
AU - Ichikawa, Akimasa
AU - Okamoto, Hiroshi
AU - Kimura, Noriyoshi
AU - Ohki, Hiroshi
AU - Ikeda, Ryuichi
AU - Kitagawa, Hiroshi
AU - Bandow, Shunji
AU - Toriumi, Koshiro
AU - Mitani, Tadaoki
AU - Ohishi, Tachi
AU - Miyamae, Hiroshi
N1 - Funding Information:
ACKNOWLEDGMENT This work was partly supported by Grant-in-Aid for Scientific Research on Priority Area "Molecular Magnetism" (Area No. 228/04242104) from the Ministry of Education, Science and Culture, Japan.
PY - 1994/11
Y1 - 1994/11
N2 - Quasi-one-dimensional halogen-bridged nickel compounds with nitrate counteranions, Ni(chxn)zX(N03)E (chxn=cyclohexanediamine; X=C1 and Br), and with Perchlorate counteranions, Nl(chxn)2X(C10A)e (X=C1 and Br) have been synthesized in order to control the charge instabilities. The Ni(chxn)eX(N03)2 were synthesized by both chemical and electrochemical methods. The crystal structure of Ni(chxn)2Br(NO3)2 has been determined by single-crystal X-ray diffraction method. In this compound, the Ni(chxn)E moieties are bridged by Br- ions to construct linear-chain structures and the hydrogen-bond networks of NH…O-N-O…HN which hold the chains are extended over the chains two-dimensionally. The bridging Br˜ ions are located at the midpoints between neighboring two Ni atoms along the chains with no Peierls distortion. The Ni(chxn)EX(C104)2 were synthesized by halogenation of 70 % HC10 solution of Ni(chxn)2(C10J2. The lattice constants of Ni(chxn)2Cl(C104)E were determined by X-ray powder pattern. The N1-C1-N1 distance of this compound is almost equal to that of Ni(chxn)2Cl3. but the interchain distance in the direction of counteranions is much longer than that in Ni(chxn)2Cl3. The electronic structure of Ni(chxn)2Cl(C104)2 was discussed on the basis of the results of electrical conductivity and temperature-dependence CP/MAS 13C NMR spectra.
AB - Quasi-one-dimensional halogen-bridged nickel compounds with nitrate counteranions, Ni(chxn)zX(N03)E (chxn=cyclohexanediamine; X=C1 and Br), and with Perchlorate counteranions, Nl(chxn)2X(C10A)e (X=C1 and Br) have been synthesized in order to control the charge instabilities. The Ni(chxn)eX(N03)2 were synthesized by both chemical and electrochemical methods. The crystal structure of Ni(chxn)2Br(NO3)2 has been determined by single-crystal X-ray diffraction method. In this compound, the Ni(chxn)E moieties are bridged by Br- ions to construct linear-chain structures and the hydrogen-bond networks of NH…O-N-O…HN which hold the chains are extended over the chains two-dimensionally. The bridging Br˜ ions are located at the midpoints between neighboring two Ni atoms along the chains with no Peierls distortion. The Ni(chxn)EX(C104)2 were synthesized by halogenation of 70 % HC10 solution of Ni(chxn)2(C10J2. The lattice constants of Ni(chxn)2Cl(C104)E were determined by X-ray powder pattern. The N1-C1-N1 distance of this compound is almost equal to that of Ni(chxn)2Cl3. but the interchain distance in the direction of counteranions is much longer than that in Ni(chxn)2Cl3. The electronic structure of Ni(chxn)2Cl(C104)2 was discussed on the basis of the results of electrical conductivity and temperature-dependence CP/MAS 13C NMR spectra.
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U2 - 10.1080/10587259408039246
DO - 10.1080/10587259408039246
M3 - Article
AN - SCOPUS:84972813375
VL - 256
SP - 179
EP - 186
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
SN - 1542-1406
IS - 1
ER -