Spin canting in Re(IV) complexes: magnetic properties of [ReX4(bpym)] ( X = Cl and Br; bpym=2,2'-bipyrimidine)

被引：21

作者：

Martinez-Lillo, Jose ^{[1
]}

Lloret, Francisco ^{[1
]}

Julve, Miguel ^{[1
]}

Faus, Juan ^{[1
]}

机构：

[1] Univ Valencia, Dept Quim Inorgan ICMOL, Valencia, Spain

来源：

JOURNAL OF COORDINATION CHEMISTRY | 2009年 / 62卷 / 01期

关键词：

Re(IV) complexes; Magnetic properties; Spin canting; CRYSTAL-STRUCTURE; SALTS; METAMAGNETISM; RHENIUM; CATIONS; SERIES; LIGAND;

D O I：

10.1080/00958970802474789

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The mononuclear complexes [ReCl4(bpym)] (1) and [ReBr4(bpym)] (2) (bpym = 2,2'-bipyrimidine) are weak ferromagnets. Magnetic ordering occurs below 7.0 (1) and 20.0 K (2) and good hysteresis loops are observed for the two compounds at 2.0 K. A spin-canting phenomenon, i.e., a non-strict linearity of the individual spins aligned in an anti-parallel way by intermolecular antiferromagnetic coupling occurring in many Re(IV) complexes, accounts for these magnetic features which are unusual in molecular solids such as 1 and 2.

引用

页码：92 / 99

页数：8

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