Crystal structure and magnetic behaviour of a five-coordinate iron(III) complex of pyridoxal-4-methylthiosemicarbazone

被引：28
|
作者：
Tido, Eddy W. Yernell [1 ]
Vertelman, Esther J. M. [1 ]
Meetsma, Auke [1 ]
van Koningsbruggen, Petra J. [1 ]
机构：
[1] Univ Groningen, Stratingh Inst Chem, Nijenborgh 4, NL-9747 AG Groningen, Netherlands
来源：
INORGANICA CHIMICA ACTA | 2007年 / 360卷 / 13期
关键词：
crystal structure; penta-coordinate; iron(III); pyridoxal-4-methylthiosemicarbazone; zero-field splitting;
D O I：
10.1016/j.ica.2007.03.045
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The crystal structure and magnetic properties of a penta-coordinate iron(III) complex of pyridoxal-4-methylthiosemicarbazone, [Fe(H(2)mthpy)Cl-2](CH3C6H4SO3), are reported. The synthesised ligand and the metal complex were characterised by spectroscopic methods (H-1 NMR, IR, and mass spectroscopy), elemental analysis, and single crystal X-ray diffraction. The complex crystallises as dark brown microcrystals. The crystal data determined at 100(l) K revealed a triclinic system, space group P (1) over bar (Z = 2). The ONSCl2, geometry around the iron(III) atom is intermediate between trigonal bipyramidal and square pyramidal (tau = 0.40). The temperature dependence of the magnetic susceptibility (5-300 K) is consistent with a high spin Fe(III) ion (S = 5/2) exhibiting zero-field splitting. Interpretation of these data yielded: D = 0.34(1) cm(-1) and g = 2.078(3). (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：3896 / 3902
页数：7
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