The Library
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−)
Tools
Rodina, Tatyana A., Ivanov, Alexander V., Gerasimenko, Andrey V., Loseva, Olga V., Antzutkin, Oleg N. and Sergienko, Valentin I. (2012) 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−). Polyhedron, Vol.40 (No.1). pp. 53-64. doi:10.1016/j.poly.2012.03.043 ISSN 0277-5387.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1016/j.poly.2012.03.043
Abstract
Four novel heteropolynuclear and polynuclear complexes of the general formulae [Au(S2CNR2)2]2X (X = [CdCl4]2−, R = CH3 (1); X = [Cd2Cl6]2−, R = C3H7 (2)) and [Au(S2CNR2)2][AuCl4] (R = iso-C3H7 (3); R = iso-C4H9 (4)) were prepared using heterogeneous reactions between appropriate freshly precipitated binuclear cadmium(II) dialkyldithiocarbamates and AuCl3 in 2 M hydrochloric acid. The isolated complexes were studied by 13C CP/MAS NMR spectroscopy, 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 2 comprise binuclear cations, [Au2{S2CN(CH3)2}4]2+ and polynuclear chains, ([Au{S2CN(C3H7)2}2]+)n in a combination with [CdCl4]2− and [Cd2Cl6]2− anions, respectively. Unexpected structural distinctions at the supramolecular level were discovered for the chemically related compounds 3 and 4. In these ionic complexes, there are either cationic trinuclear formations, {[Au{S2CN(iso-C3H7)2}2]2[AuCl4]}+, or polynuclear chains, ([Au{S2CN(iso-C4H9)2}2]+)n, both combined with [AuCl4]− anions, in the structural basis of compounds 3 and 4, respectively.
Item Type: | Journal Article | ||||
---|---|---|---|---|---|
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Polyhedron | ||||
Publisher: | Pergamon | ||||
ISSN: | 0277-5387 | ||||
Official Date: | 19 June 2012 | ||||
Dates: |
|
||||
Volume: | Vol.40 | ||||
Number: | No.1 | ||||
Page Range: | pp. 53-64 | ||||
DOI: | 10.1016/j.poly.2012.03.043 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |