SUBSTITUENT EFFECTS ON THE SPIN EQUILIBRIUM IN IRON(II) PYRAZOLYLBORATE COMPLEXES

被引：28

作者：

BUCHEN, T

GUTLICH, P

机构：

[1] Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg Universität, D-55099 Mainz

来源：

INORGANICA CHIMICA ACTA | 1995年 / 231卷 / 1-2期

关键词：

SPIN CROSSOVER; IRON COMPLEXES; PYRAZOLYBORATE COMPLEXES;

D O I：

10.1016/0020-1693(94)04337-U

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two new complexes of the iron(II) pyrazolylborate system, [Fe(HB(pz)(dmpz)(2))(2)] and [Fe(HB(pz)(2)(dmpz))(2)] (pz=pyrazole, dmpz=3,5-dimethylpyrazole), have been prepared and found to exhibit thermal spin crossover in toluene solutions by means of optical spectroscopy and magnetic susceptibility measurements. Comparison with the published magnetic behaviour of the complexes [Fe(HB(dmpz)(3))(2)] and [Fe(HB(pz)(3))(2)] shows that the high spin state is stabilized with an increasing number of methyl substituents.

引用

页码：221 / 223

页数：3

共 12 条

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[2]

GUTLICH P, 1981, STRUCT BOND, V44, P83

[3]

GUTTLICH P, 1994, ANGEW CHEM INT EDIT, V33, P2024

[4] INTERSYSTEM CROSSING IN FE(II) COORDINATION-COMPOUNDS [J].