Magnetic properties of anion-radical salt [FeII(dipy)3](TCNQ)4•(CH3)2CO

被引:2
|
作者
Vasylets, G. [1 ]
Starodub, V. A. [2 ]
Feher, A. [3 ]
Kajnakova, M. [3 ]
Zboril, R. [4 ]
Tucek, J. [4 ]
Metz, H. [5 ]
Potocnak, I. [6 ]
机构
[1] Kharkov Natl Univ, Fac Chem, UA-61022 Kharkov, Ukraine
[2] Jan Kochanowski Univ, Inst Chem, PL-25406 Kielce, Poland
[3] Safarik Univ, Inst Phys, Kosice 04154, Slovakia
[4] Reg Ctr Adv Technol & Mat, Olomouc 77146, Czech Republic
[5] Univ Halle Wittenberg, Inst Pharm, D-06120 Halle, Saale, Germany
[6] Safarik Univ, Inst Chem, Kosice 04154, Slovakia
关键词
Tetracyanoquinodimethane; Mossbauer spectroscopy; Magnetic susceptibility; SPIN-CROSSOVER; MOSSBAUER; COMPLEXES; IRON;
D O I
10.1016/j.synthmet.2014.04.011
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Magnetic properties of anion-radical TCNQ salt [Fe(dipy)(3)](TCNQ)(4)center dot(CH3)(2)CO have been investigated (dipy is 2,2'-dipyridil). X-ray diffraction data allow presence of two types of TCNQ stacks: tetramerized (diamagnetic) and partly dimerized (paramagnetic). Due to Mossbauer spectroscopy data iron cation appears as two-valent ion in low-spin state. Magnetic susceptibility temperature dependence is described by Bonner Fischer model with additional weak impurity paramagnetism. Susceptibility curve is in good qualitative agreement with ESR spectra. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:7 / 10
页数:4
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