Synthesis, structure and magnetic properties of a linear trimanganese(II,III,II) complex with hydroxo and 1,2,4-triazole as bridging ligands

被引：15

作者：

Liu, JC

Xu, Y

Duan, CY

Wang, SL

Liao, FL

Zhuang, JZ

You, XZ ^{[1
]}

机构：

[1] Nanjing Univ, Inst Coordinat Chem, Nanjing 210093, Peoples R China

[2] Natl Tsing Hua Univ, Dept Chem, Hsinchu 300, Taiwan

来源：

INORGANICA CHIMICA ACTA | 1999年 / 295卷 / 02期

关键词：

4-amino-3,5-dimethyl-1,2,4-triazole; hydroxo bridging complexes; trinuclear manganese(II; III; II); magnetic properties; crystal structures;

D O I：

10.1016/S0020-1693(99)00307-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A mixed valence trinuclear manganese(II,III,II) complex [Mn-3(admtrz)(6)(OH)(2)(DMF)(2)(H2O)(2)](2)(ClO4)(10). 2(admtrz). 3H(2)O (1), (admtrz = 4-amino-3,5-dimethyl-1,2,4-triazole) with hydroxo and 1,2,4-triazole as bridging ligands has been isolated, and characterized by X-ray crystallography and magnetic susceptibility measurements. In each cation structure, the central Mn(III) ion lies on an inversion center and is bridged to each of the external Mn(II) ions by one OH- anion and two admtrz ligands. Each external Mn(II) ion completes its octahedral surroundings with one admtrz, one DMF and one H2O molecule. Complex 1 exhibits weak antiferromagnetic coupling. Analysis of variable temperature magnetic susceptibility data (4-300 K) according to a Heisenberg model yields a J value of -4.47 cm(-1). (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：229 / 233

页数：5

共 25 条

[1] Synthesis of tris(quinoxaline-2,3dithiolato)manganese(IV) and its reaction with [Cu(CH3COO)2H2O]2.: Crystal structure of [MnII(DMF)4(H2O)2][CuIII(qdt)2]2 [J].