Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/93295
Title: Chemistry of thiocarboxylates: Syntheses and characterization of silver and copper thiocarboxylate complexes, and the structures of [Ph4P][M(SC{O}Me)2] (M = Cu or Ag) and [Et3NH][Ag(SC{O}Ph)2]
Authors: Sampanthar, J.T. 
Vittal, J.J. 
Dean, P.A.W.
Issue Date: 21-Sep-1999
Source: Sampanthar, J.T.,Vittal, J.J.,Dean, P.A.W. (1999-09-21). Chemistry of thiocarboxylates: Syntheses and characterization of silver and copper thiocarboxylate complexes, and the structures of [Ph4P][M(SC{O}Me)2] (M = Cu or Ag) and [Et3NH][Ag(SC{O}Ph)2]. Journal of the Chemical Society - Dalton Transactions (18) : 3153-3156. ScholarBank@NUS Repository.
Abstract: The bis(thiocarboxylate) complexes of silver(i) and copper(i) namely, [Ph4P][M(SC{O}Me)2], (M = Cu 1 or Ag 2) and [Et3NH][M(SC{O}Ph)2] (M = Cu 3 or Ag 4) were prepared from the appropriate metal salt, RC{O}S- anions and the counter ion in the ratio 1:2:1. The structures of 1, 2 and 4 were determined by X-ray crystallography. The compounds 1 and 2 are isomorphous and isostructural. In both structures, the metal is bonded to sulfur atoms of two thioacetate ligands to give a near-linear geometry. A crystallographically imposed 2-fold rotational symmetry is present in the anions and the cations. The [Ag(SC{O}Ph)2]- anion in 4 also has an approximately-linear SAgS skeleton. One of the S atom interacts weakly with a second silver(I) ion to form a dimer. The N-H hydrogen atom of the Et3NH+ cation is involved in N-H ⋯ O hydrogen bonding to a carbonyl oxygen atom of the anion. There is a crystallographic center of symmetry present in this 'ion-pair dimer', having a rectangular arrangement of Ag2S2 with a T-shaped coordination geometry around the silver atoms. All the compounds decompose under a nitrogen atmosphere to the corresponding metal sulfides according to weight loss observed in TG. © The Royal Society of Chemistry 1999.
Source Title: Journal of the Chemical Society - Dalton Transactions
URI: http://scholarbank.nus.edu.sg/handle/10635/93295
ISSN: 03009246
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