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Synthesis and Structure of Tetra( para -tolyl)antimony Dicyanodiiodoaurate [ p -Tol 4 Sb][Au(CN) 2 I 2 ] and Alkyltriphenylphosphonium Dicyanodiiodoaurates [Ph 3 PAlk][Au(CN) 2 I 2 ], Alk = Me, CH 2 CN
Russian Journal of Coordination Chemistry ( IF 1.1 ) Pub Date : 2020-09-09 , DOI: 10.1134/s1070328420090031
V. V. Sharutin , O. K. Sharutina , A. N. Efremov , O. S. Eltsov

Abstract

Red-colored crystalline gold complexes [p-Tol4Sb][Au(CN)2I2] (I), [Ph3PMe][Au(CN)2I2] (II), and [Ph3PCH2CN][Au(CN)2I2] (III) were synthesized by the reaction of potassium dicyanodiiodoaurate with tetra(para-tolyl)antimony and alkyltriphenylphosphonium halides in water. The structure of the complexes was established by IR and NMR spectroscopy and X-ray diffraction. The tetra(para-tolyl)antimony and alkyltriphenylphosphonium cations have a distorted tetrahedral coordination. The dicyanodiiodoaurate anions have a planar structure with a square coordination of the gold atom. The formation of the 3D crystal network is due to weak CN⋅⋅⋅H−C hydrogen bonds between cations and anions (2.39, 2.59 Å (I), 2.70, 2.48, 2.52, 2.68 Å (II), 2.73, 2.50, 2.67, 2.44 Å (III)). In complex III, anions of one of the two types interact with one another via I⋅⋅⋅I contacts to give 1D ladder-like chains along the crystallographic a axis.



中文翻译:

四(对甲苯基)锑二氰基二十二碳六酸酯[p -Tol 4 Sb] [Au(CN)2 I 2]和烷基三苯基phosph二氰基二十二碳二酸酯[Ph 3 PAlk] [Au(CN)2 I 2],Alk = Me CH 2 CN

摘要

红色结晶金络合物[ p -Tol 4 Sb] [Au(CN)2 I 2 ](I),[Ph 3 PMe] [Au(CN)2 I 2 ](II)和[Ph 3 PCH 2 CN] [Au(CN)2 I 2 ](III)是通过使氰基碘十二酸钾与四(甲苯基)锑和烷基三苯基phosph卤化物在水中反应而合成的。配合物的结构通过IR和NMR光谱以及X射线衍射确定。四(-甲苯基锑和烷基三苯基phosph阳离子具有扭曲的四面体配位。二氰基二碘十二酸酯阴离子具有金原子呈方形配位的平面结构。3D晶体网络的形成是由于阳离子和阴离子之间的CN⋅⋅⋅HC氢键弱(2.39,2.59Å(I),2.70,2.48,2.52,2.68Å (II),2.73,2.50,2.67 ,2.44Å(III))。在复杂的III中,两种类型之一的阴离子经由I⋅⋅⋅I触点彼此相互作用,得到1D梯子状沿着晶体链一个轴。

更新日期:2020-09-10
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