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(S 2 CNPr 2 ) 2 ][AgCl 2 ]) n

E. V. Korneeva, A. I. Smolentsev, O. N. Antzutkin, A. V. Ivanov

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Abstract

The double ionic-polymer complex ([Au(S 2 CNPr 2 ) 2 ][AgCl 2 ]) 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 13 C magic-angle spinning (MAS) NMR spectroscopy. The structure of 1 comprises two nonequivalent centrosymmetric complex cations [Au(S 2 CNPr 2 ) 2 ] + (A and B) and the discrete linear anion [AgCl 2 ] . 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 [AgCl 2 ] 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 [AgCl 2 ] anion. The character of thermolysis of 1 accompanied by quantitative regeneration of bound Au and Ag was established by simultaneous thermal analysis.

Original languageEnglish
Pages (from-to)40-47
Number of pages8
JournalRussian Chemical Bulletin
Volume68
Issue number1
DOIs
Publication statusPublished - 1 Jan 2019

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Keywords

  • C MAS NMR spectroscopy
  • binary complexes
  • dialkyldithiocarbamates
  • gold silver compounds
  • noble metals
  • secondary interactions
  • supramolecular self-assembly
  • thermal behavior
  • THIN-FILMS
  • C3H7
  • MOLECULAR-STRUCTURE
  • DEPOSITION
  • CRYSTAL
  • STRUCTURAL ORGANIZATION
  • C-13 MAS NMR spectroscopy
  • POLYNUCLEAR
  • C-13 NMR

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