Ligand field tuned spin crossover for an iron(II)-di(diamine) system

被引：10

作者：

Luo, Yang-Hui ^{[1
]}

Chen, Lan ^{[1
]}

Wang, Jing-Wen ^{[1
]}

Wang, Ming-Xin ^{[1
]}

Zhang, Ya-Wen ^{[1
]}

Sun, Bai-Wang ^{[1
]}

机构：

[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 210096, Jiangsu, Peoples R China

来源：

INORGANICA CHIMICA ACTA | 2016年 / 450卷

关键词：

Ligand field; Spin crossover; Di(diamine); INTERMOLECULAR INTERACTIONS; MAGNETIC-PROPERTIES; THERMAL HYSTERESIS; COMPLEXES; TRANSITION; COORDINATION; EQUILIBRIUM; COMPOUND; IRON; POLYMER;

D O I：

10.1016/j.ica.2016.05.020

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Investigation of spin-crossover in iron(II)-di(diamine) system, based on ligands L-1, 4,5-dimethy-2-(pyridine-2-yl) imidazole, has been presented in this paper. The methyl group at the adjacent sites of the donor atoms in ligand L-1 can generate the crossover situation for the iron(II) tris(diimine) system. While for the iron(II)-di(diamine) system with L-1, the results are complicated: complex 1 {Fe(L-1)(2)(SCN)(2)} displays paramagnetic behavior while 2 {Fe(L-1)(2)(SeCN)(2)} is in crossover situation. The difference was attributed to the various ligand field strength of SCN and SeCN , which also resulted to the blue-shift of IR and Raman spectra, as well as red-shift and decrease in molar absorptivity of UV-Vis absorption spectrum. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：8 / 11

页数：4

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