Fixation modes of gold(III) from solutions using cadmium(II) dithiocarbamates. Preparation, supramolecular structure and thermal behaviour of polynuclear and heteropolynuclear gold(III) complexes: Bis(N,N-dialkyldithiocarbamato-S,S′)gold(III) polychlorometallates, [Au(S2CNR2)2]nX (n=1: X=[AuCl4]−; n=2: X=[CdCl4]2−, [Cd2Cl6]2−)
作者:Tatyana A. Rodina、Alexander V. Ivanov、Andrey V. Gerasimenko、Olga V. Loseva、Oleg N. Antzutkin、Valentin I. Sergienko
DOI:10.1016/j.poly.2012.03.043
日期:2012.6
single-crystal X-ray diffraction and simultaneous thermal analysis (STA) under an argon atmosphere. In all molecular structures (1–4), one of the gold atoms coordinates two dialkyldithiocarbamate ligands in the S,S′-bidentate mode, forming a square-planar coordination polygon [AuS4], while the other gold atom (in 3 and 4) has four neighbouring chlorine atoms [AuCl4]. At the supramolecular level, compounds 1 and
通式[Au(S 2 CNR 2)2 ] 2 X(X = [CdCl 4 ] 2−,R = CH 3(1); X = [Cd 2 Cl 6 ] 2−的四种新颖的杂多核和多核配合物,R = C 3 H 7(2))和[Au(S 2 CNR 2)2 ] [AuCl 4 ](R = 异-C 3 H 7(3); R = 异-C 4 H 9(4))是使用适当新鲜沉淀的双核二烷基二硫代氨基甲酸镉(II)与AuCl 3在2 M盐酸中的非均相反应制备的。通过13 C CP / MAS NMR光谱,单晶X射线衍射和氩气气氛下的同时热分析(STA)对分离的配合物进行了研究。在所有的分子结构(1 - 4),金原子坐标之一在两个二烷基二配体小号,小号'-bidentate模式,形成一个正方形平面协调多边形[AUS 4 ],而其他金原子(在3和4)具有四个相邻的氯原子[AuCl 4 ]。在超分子水平上,化合物1和2包含双核阳离子[Au