HETEROBINUCLEAR OXO-BRIDGED COMPLEXES .2. INTERACTIONS OF CR(III)OFE(III) COMPLEXES WITH LEWIS-BASES, MOSSBAUER-SPECTRA AND MAGNETIC-SUSCEPTIBILITIES

被引：7

作者：

BAKSHI, EN ^{[1
]}

ELLIOTT, RL ^{[1
]}

MURRAY, KS ^{[1
]}

NICHOLS, PJ ^{[1
]}

WEST, BO ^{[1
]}

机构：

[1] MONASH UNIV,DEPT CHEM,CLAYTON,VIC 3168,AUSTRALIA

来源：

AUSTRALIAN JOURNAL OF CHEMISTRY | 1990年 / 43卷 / 04期

关键词：

D O I：

10.1071/CH9900707

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Equilibrium constants are reported for reaction of Lewis bases, including H2O, with (thf)(tpp)CrOFe(salmah) in tetrahydrofuran and toluene solutions [tpp = dianion of 5, 10, 15, 20- tetraphenylporphyrin; salmah = dianion of N, N'-(4-methyl-4-azaheptane-l, 7-diyl)bis(salicyli- deneimine)]. Mössbauer spectra of several (tpp)CrOFe(L) compounds have also been measured in order to define the spin states of the FeIII centres (L = salmah, other tetradentate salicylideneimines, or anions of dithiocarbamates). The variation of magnetic susceptibility with temperature for several complexes has been studied to 4·2 K, and shows evidence of antiferromagnetic coupling between chromium and iron centres. The interaction can be fitted to an isotropic coupling model for several (B)(tpp)CrOFe(salmah) complexes (B is H2O or l-methylimidazole). © 1990 ASEG.

引用

页码：707 / 718

页数：12

共 20 条

[1] SYNTHESIS, ESR-SPECTRUM AND MAGNETIC-PROPERTIES OF A HETEROBINUCLEAR COMPLEX CONTAINING THE (FEIII(MU-O)(MU-MECO2)2MNIII)2+ CORE [J].