Synthesis, Supramolecular Self-Organization, and Thermal Behavior of Gold(III)–Thallium(III) Heteronuclear Complexes ([Au{S2CN(CH3)2}2][TlCl4])2 and ([Au{S2CN(C2H5)2}2][TlCl4])n
A. V. Ivanova, O. A. Bredyuka, O. V. Losevaa, and O. N. AntzutkinbTranslated by G. Kirakosyan
aInstitute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences, Relochnyi per. 1, Blagoveshchensk, 675000 Russia
bLuleå University of Technology, S-971 87 Luleå, Sweden
e-mail: alexander.v.ivanov@chemist.com
Received 23 June, 2015
Abstract—The interaction of polymeric thallium(I) dimethyl- and diethyldithiocarbamates with [AuCl4]– in 2 M HCl has been studied. Heteropolynuclear complexes ([Au{S2CN(CH3)2}2][TlCl4])2 (I) and ([Au{S2CN(C2H5)2}2][TlCl4])n (II) have been preparatively isolated from chemisorption systems [Tl2{S2CNR2}2]n–Au3+/2 M HCl (R = CH3, C2H5). These compounds have been characterized by 13C CP/MAS NMR, and their crystal and supramolecular structures have been determined by X-ray crystallography. Basic structural units of compounds I and II are square-planar [Au{S2CNR2}2]+ cations (with S,S'-bidentate coordination of two Dtc ligands to the gold atom) and distorted tetrahedral [TlCl4]– anions. In supramolecular self-organization, the decisive role is played by relatively weak secondary interactions Au⋅⋅⋅S and Au⋅⋅⋅Cl. With the use of simultaneous thermal analysis, the thermal behavior of I and II have been studied, which enabled the elucidation of temperature-induced transformations and identification of TlCl and reduced gold among the thermolysis products.
DOI: 10.1134/S0036023616060103