Supramolecular aspects of iron(II) crown-dipyridyl spin-crossover compounds

被引：30
作者：
Gass, Ian A. [1 ]
Batten, Stuart R. [1 ]
Forsyth, Craig M. [1 ]
Moubaraki, Boujemaa [1 ]
Schneider, Caspar J. [1 ]
Murray, Keith S. [1 ]
机构：
[1] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia
来源：
COORDINATION CHEMISTRY REVIEWS | 2011年 / 255卷 / 17-18期
基金：
澳大利亚研究理事会;
关键词：
Supramolecular; Iron(II); Spin-crossover; Magnetism; Structure; Crown-ether; Host-guest; MAGNETIC-PROPERTIES; MOLECULAR MATERIALS; CRYSTAL-STRUCTURES; II COMPLEXES; TRANSITION; STATE; MOSSBAUER; LIGAND; COORDINATION; MONONUCLEAR;
D O I：
10.1016/j.ccr.2011.01.033
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The synthesis, structures and magnetism of the complexes [Fe-II(3-bpp)(2)][bpmdcK](SeCN)(1.7) (ClO4)(1.3)MeOH center dot H2O (1), I Fe-II(3-bpp)(2)](4)[bpmdcH(2)(H2O)(2)](ClO4)(10)center dot 7H(2)O center dot 3McOH (2) and cis-[Fe-2(II)(NCSe)(2) ((3.5-Me-2 pz)(3)CH)(2)(mu-bPmdc)].2MeCN (3) (where 3-bpp=2.6-di(pyrazole-3yl)pyridine, bpmdc =N,N'-bis(4-pyridyl-methyl)diaza-18-crown-6) and (3,5-Me2pz)(3)CH = tris(3,5-dimethylpyrazole)methane, are presented. These compounds form a study of the supramolecular influence of host-guest/crown-ether interactions and cation-to-crown hydrogen-bonding effects upon d(6) spin transitions, the latter occurring above, or near to, room temperature in 1 and 2. Desolvation effects also influence the T-1/2 values. The dinuclear compound 3 contains covalent pyridyl (crown) N to Fe bridge bonding and remains high spin. (C) 2011 Elsevier B.V. All rights reserved.
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页码：2058 / 2067
页数：10
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