INTRAMOLECULAR AND INTERMOLECULAR FERROMAGNETIC INTERACTION OF TRANSITION-METAL COMPLEXES CONTAINING PYRIMIDINE OR PYRAZINE DERIVATIVES

被引:23
作者
ISHIDA, T
MITSUBORI, S
NOGAMI, T
ISHIKAWA, Y
YASUI, M
IWASAKI, F
IWAMURA, H
TAKEDA, N
ISHIKAWA, M
机构
[1] UNIV TOKYO, FAC SCI, DEPT CHEM, BUNKYO KU, TOKYO 113, JAPAN
[2] UNIV TOKYO, INST SOLID STATE PHYS, MINATO KU, TOKYO 106, JAPAN
关键词
D O I
10.1016/0379-6779(94)03052-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The 1/2 spins of oxovanadium(IV) ions were ferromagnetically coupled with J/k(B) = +1.1 similar to+2.7 K in the dinuclear complexes L[VO(hfac)(2)](2) (hfac = hexafluoroacetylacetonate, L = pyrimidine derivatives). Among them, a ferromagnetic transition was observed at about 0.14 K in PM[VO(hfac)(2)](2) (PM = pyrimidine). The polymeric complex QZ[Cu(hfac)(2)] (QZ = quinazoline) gave a positive Weiss constant (+0.39 K). The ferromagnetic transition was observed at about 0.12 K.
引用
收藏
页码:1791 / 1792
页数:2
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