Fe2+ spin transition in [Fe(trz)(Htrz)(2)](BF4) as evidenced by a variable temperature EPR study

被引：15

作者：

Cantin, C ^{[1
]}

Kliava, J ^{[1
]}

Servant, Y ^{[1
]}

Sommier, L ^{[1
]}

Kahn, O ^{[1
]}

机构：

[1] INST CHIM MAT CONDENSEE BORDEAUX,LAB SCI MOL,PESSAC,FRANCE

来源：

APPLIED MAGNETIC RESONANCE | 1997年 / 12卷 / 01期

关键词：

D O I：

10.1007/BF03161993

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The EPR of Fe3+ ions has been used for the first time to evidence a low-spin (S = 0) to high-spin (S = 2) transition of Fe2+ ions in an octahedral ferrous complex [Fe(trz)(Htrz)(2)](BF4). The temperature dependence of the intensity of the Fe3+ EPR line at g = 4.3 reveals a spin transition which occurs for the Fe2+ ions, with hysteresis. The transition temperatures are T-c up arrow = 374 K in the warming mode and T-c down arrow = 345 K in the cooling mode. The analysis of the EPR spectral data indicates the presence of a structural phase transition accompanying the spin transition.

引用

页码：81 / 86

页数：6

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