Coexistence of spin-crossover and antiferromagnetic coupling phenomena in the novel dinuclear Fe(II) complex [Fe(dpa) (NCS)2]2bpym

被引：48

作者：

Gaspar, AB

Ksenofontov, V

Real, JA

Gütlich, P

机构：

[1] Univ Valencia, Inst Ciencia Mol, Dept Quim Inorgan, E-46100 Burjassot, Valencia, Spain

[2] Univ Mainz, Inst Anorgan & Analyt Chem, D-55099 Mainz, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 373卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(03)00560-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The iron(II) spin crossover dinuclear compound [Fe(dpa)(NCS)(2)](2) bpym where dpa = 2,2'-dipyridylamine and bpym = 2,2'-bipyrimidine has been synthesized and characterized. Variable-temperature magnetic susceptibility and Fe-57 Mossbauer spectroscopy data provide evidence for a rather complete and continuous S = 2 (HS) <----> S = 0 (LS) spin-crossover behavior taking place in the temperature range 400-50 K (T-1/2 - 245 K) without the presence of a plateau at 50% of conversion. The absence of such plateau, which is characteristic of all dinuclear compounds so far studied, is interpreted in terms of synergetic effect between intramolecular and intermolecular interactions. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：385 / 391

页数：7

共 12 条

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[2] THERMAL AND OPTICAL SWITCHING OF IRON(II) COMPLEXES [J].