Photomagnetic studies on spin-crossover solid solutions containing two different metal complexes,[Fe(1-bpp)2]x[M(terpy)2]1-x[BF4]2 (M = Ru or Co)

被引:23
作者
Chastanet, Guillaume [2 ]
Tovee, Clare A. [1 ]
Hyett, Geoffrey [1 ]
Halcrow, Malcolm A. [1 ]
Letard, Jean-Francois [2 ]
机构
[1] Univ Leeds, Sch Chem, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
[2] Univ Bordeaux, CNRS, ICMCB, Grp Sci Mol, F-33608 Pessac, France
基金
英国工程与自然科学研究理事会;
关键词
CRITICAL-TEMPERATURE; ELECTRON-TRANSFER; MIXED-CRYSTALS; TRANSITION; IRON(II); COMPLEXES; LIESST; BISTABILITY; RELAXATION; MOSSBAUER;
D O I
10.1039/c2dt12122k
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The photomagnetic properties of two series of spin-crossover solid solutions, [Fe(1-bpp)(2)](x)[Ru(terpy)(2)](1-x)(BF4)(2) and [Fe(1-bpp)(2)](x)[Co(terpy)(2)](1-x)(BF4)(2) (1-bpp = 2,6-bis[pyrazol-1-yl]pyridine), have been investigated. For all the materials, the evolution of the T(LIESST) value, the high-spin -> low-spin relaxation parameters and the LITH loops were thoroughly studied. Interestingly in the Fe : Co series, along the photo-excitation, cobalt ions are concomitantly converted from low-spin to high-spin states with the iron centres, and also fully relax after light excitation.
引用
收藏
页码:4896 / 4902
页数:7
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