Hydrogen-bonded 2D network structure and abrupt spin transition with thermal hysteresis of iron(III) complexes [FeIII(Him)2 (3-MeOsalen)]•H2OEtOH•X (Him = imidazole, 3-MeOsalen = N,N′-bis (3-methoxysalicylidene)ethylenediaminato, and X = PF6, AsF6, SbF6)

被引：8
|
作者：
Hanahara, Keita [1 ]
Ono, Hiromasa [1 ]
Fujinami, Takeshi [1 ]
Matsumoto, Naohide [1 ]
Sunatsuki, Yukinari [2 ]
机构：
[1] Kumamoto Univ, Fac Sci, Dept Chem, Kumamoto 8608555, Japan
[2] Okayama Univ, Fac Sci, Dept Chem, Okayama 7008530, Japan
来源：
INORGANICA CHIMICA ACTA | 2015年 / 429卷
基金：
日本学术振兴会;
关键词：
Iron(III) complex; Spin crossover; Imidazole; N2O2 Schiff-base ligand; Hydrogen bonds; Hysteresis; QUADRIDENTATE SCHIFF-BASES; FE-III-COMPLEX; MAGNETIC-PROPERTIES; CROSSOVER; BINUCLEAR; BEHAVIOR; CRYSTAL; CF3SO3; LIGAND;
D O I：
10.1016/j.ica.2015.01.047
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Spin crossover (SCO) iron(III) complexes exhibiting thermal hysteresis, [Fe-III(Him)(2)(3-MeOsalen)]center dot H2O center dot EtOH center dot X (Him = imidazole, 3-MeOsalen = N, N'-bis(3-methoxysalicylidene) ethylenediaminato, and X = PF6, AsF6, SbF6), were synthesized in ethanol. The FeIII ion has an octahedral coordination geometry with N2O2 donor atoms of the planar tetradentate ligand (3-MeOsalen) and two nitrogen atoms of two imidazoles at the axial positions. Through H2O and EtOH the complex-cations are assembled into a hydrogen-bonded 2D network structure and the anion X is accommodated in the void of the 2D network. The temperature dependences of the magnetic susceptibilities revealed an abrupt and two-step spin transition with thermal hysteresis for the PF6 and AsF6 salts. (C) 2015 Elsevier B.V. All rights reserved.
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收藏
页码：93 / 98
页数：6
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