ePrints

Synthesis and characterization of the bimetallic polymers [MS 4Ag2(Hmimt)2]n (where M = Mo or W, Hmimt = 1-methylimidazoline-2(3H)-thione): Crystal structures of [WS 4Ag2(Hmimt)2]n and [Ag 2I2(Hmimt)]n

Lookup NU author(s): Professor William Clegg, Dr Neil Brooks

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.

Abstract

The title compounds were synthesized by the reactions of [NH 4]2[MS4] (M = Mo, W), AgI and Hmimt in acetone and characterized by IR, 1H NMR and UV-Vis spectroscopy. The polymeric structure of [WS4Ag2(Hmimt)2] n was determined by X-ray crystallography. In this compound, there are two distinctly different coordination modes for the silver atoms. One Ag atom has a pseudo-tetrahedral geometry with one terminal monodentate-S Hmimt, two μ2-S bridging Hmimt and one S atom of a monodentate WS 4 unit. The other is surrounded by four sulfur atoms belonging in pairs to two WS4 fragments; the coordination geometry is distorted tetrahedral. The [WS4Ag2(Hmimt)2]n polymer represents the first example of tetrathiometalate anions [MS 4]2- (M = Mo, W, or V) coordinated to another metal atom in a monodentate fashion. In both crystal structures determined the Hmimt ligands are present in the thione form, with coordination taking place via the sulfur atom only. © 2004 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Beheshti A, Clegg W, Brooks NR, Sharafi F

Publication type: Article

Publication status: Published

Journal: Polyhedron

Year: 2005

Volume: 24

Issue: 3

Pages: 435-441

ISSN (print): 0277-5387

ISSN (electronic): 1873-3719

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.poly.2004.12.002

DOI: 10.1016/j.poly.2004.12.002

Altmetrics

Share