Ligand 4-X pyridine (X = Cl, Br, I) dependence in Hofmann-type spin crossover complexes: Fe(4-Xpyridine)2[Au(CN)2]2

被引：16

作者：

Okabayashi, Jun ^{[1
]}

Ueno, Shotaro ^{[2
]}

Kawasaki, Takeshi ^{[2
]}

Kitazawa, Takafumi ^{[2
,3
]}

机构：

[1] Univ Tokyo, Res Ctr Spectrochem, Bunkyo Ku, Tokyo 1130033, Japan

[2] Toho Univ, Dept Chem, Funabashi, Chiba 2748510, Japan

[3] Toho Univ, Res Ctr Mat Integrated Properties, 2-2-1 Miyama, Funabashi, Chiba 2748510, Japan

来源：

INORGANICA CHIMICA ACTA | 2016年 / 445卷

关键词：

Spin crossover complexes; X-ray absorption fine structure; Fe-Au complexes; Aurophilic interaction; MULTIPLE-SCATTERING; K-EDGE; TRANSITION; COOPERATIVITY; PRESSURE; BEHAVIOR; STATE;

D O I：

10.1016/j.ica.2016.01.024

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We synthesize the novel spin crossover (SCO) complexes using Fe-Au based compounds bridged by cyanides with a variety of axial ligands. The complexes consist of the bridges by cyanide-based networks of Fe2+ and [Au(CN)(2)] in Hofmann-type two dimensional systems with axial 4-X pyridine ligands (X = Cl, Br, and I): Fe(4-Xpy)(2)[Au(CN)(2)](2). We investigate systematically the halogen-element dependence in the lattice parameters on the magnetic properties. X-ray absorption fine structure spectroscopies depict the element specific spectral changes between high-spin and low-spin transitions in the Fe sites. The relationship between the lattice volume and SCO transitions is discussed in details. (C) 2016 Published by Elsevier B.V.

引用

页码：17 / 21

页数：5

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