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：

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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_二氰基_二碘十二酸钾与四（对甲苯基）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（对-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。