A photomagnetic study of three iron(II) compounds containing ligands from the 2,6-di(pyrazol-1-yl)pyridine series

被引：49
作者：
Money, VA
Costa, JS
Marcén, S
Chastanet, G
Elhaïk, J
Halcrow, MA
Howard, JAK
Létard, JF
机构：
[1] CNRS, UPR 9048, Inst Chim Mat Condensee Bordeaux, Grp Sci Mol, F-33608 Pessac, France
[2] Univ Durham, Dept Chem, Durham DH1 3LE, England
[3] Univ Leeds, Dept Chem, Leeds LS2 9JT, W Yorkshire, England
来源：
CHEMICAL PHYSICS LETTERS | 2004年 / 391卷 / 4-6期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1016/j.cplett.2004.05.020
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：
A comprehensive study of the photomagnetic behaviour of [Fe(L1)(2)](BF4)(2), [Fe(L2)(2)](BF4)(2) and [Fe(L2)(2)](CLO4)(2) where L1 = 2,6-di(pyrazol-1-yl)pyridine and L2 = 2,6-di(pyrazol-1-yl)pyrazine has been carried out. The critical Light Induced Excited Spin State Trapping (LIESST) temperatures (T(LIESST)) of all three compounds are presented. The kinetics of the transition from the metastable high spin state to the low spin state have been investigated and examination of the photomagnetic behaviour under constant irradiation has shown the Light Induced Thermal Hysteresis (LITH) behaviour of the compounds. This work completes the crystallographic data previously published and proves the quantitative photoconversion at low temperature of all these derivatives. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：273 / 277
页数：5
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