Binding of gold(iii) with silver(i) dipropyldithiocarbamate: supramolecular self-assembly (role of secondary Au…S and Ag…S bonds) and thermal behavior of the ionic-polymer complex ([Au(S2CNPr2)2][AgCl2])n

被引：0
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作者：
E. V. Korneeva
A. I. Smolentsev
O. N. Antzutkin
A. V. Ivanov
机构：
[1] Far-Eastern Branch of the Russian Academy of Sciences,Institute of Geology and Nature Management
[2] Siberian Branch of the Russian Academy of Sciences,Nikolaev Institute of Inorganic Chemistry
[3] Novosibirsk State University,undefined
[4] Luleå University of Technology,undefined
[5] University of Warwick,undefined
来源：
Russian Chemical Bulletin | 2019年 / 68卷
关键词：
dialkyldithiocarbamates; binary complexes; noble metals; gold silver compounds; supramolecular self-assembly; secondary interactions; C MAS NMR spectroscopy; thermal behavior;
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摘要：
The double ionic-polymer complex ([Au(S2CNPr2)2][AgCl2])n (1) was prepared as an individual fixation form of gold(III) from NaCl solutions with silver(I) dipropyldithiocarbamate and was characterized by single-crystal X-ray diffraction and 13C magic-angle spinning (MAS) NMR spectroscopy. The structure of 1 comprises two nonequivalent centrosymmetric complex cations [Au(S2CNPr2)2]+ (A and B) and the discrete linear anion [AgCl2]–. Gold(III) cations are linked by pairs of unsymmetrical secondary Au…S bonds to form linear supramolecular chains (…A…B…)n. Neighboring cations are additionally linked by [AgCl2]– anions via secondary Ag…S and Cl…S bonds, the anions being involved in the overall stabilization of the supramolecular structure. The cation–anion interactions lead to a distortion of the linear configuration of the [AgCl2]– anion. The character of thermolysis of 1 accompanied by quantitative regeneration of bound Au and Ag was established by simultaneous thermal analysis.
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页码：40 / 47
页数：7
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