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Complexes of heterocyclic thiones and Group 12 metals: Part four. Preparation and characterisation of 1:1 complexes of mercury(II) halides with 1,3-thiazolidine-2-thione and 1,3-benzothiazoline-2-thione. Crystal structure of the discrete trans dimer [(μ-dibromo)bis(trans{(bromo)(1,3-thiazolidine-2-thione)}mercury(II))]

Lookup NU author(s): Emeritus Professor Bill Clegg

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Abstract

The addition of 1,3-thiazolidine-2-thione (tzdSH) or 1,3-benzothiazoline-2-thione (bztzSH) to mercury(II) halides in equimolar quantities in ethanolic solutions resulted in the formation of the 1:1 complexes LHgX2 (L = tzdSH, bztzSH; X = Cl, Br, I) which were characterised by elemental analysis. Spectroscopic evidence confirmed the exocyclic sulphur to be the donor atom in the thione form of the ligand and that the complexes were halogen bridged dimers. The X-ray structure of [(tzdSH)HgBr2]2 shows the molecule to be a centrosymmetric double halogen bridged dimer with distorted tetrahedral coordination geometry for Hg; secondary Hg···Br interactions link the molecules together into chains, and there are intramolecular N-H···Br hydrogen bonds between the heterocyclic ligands and the bridging bromides. © 2001 Elsevier Science B.V.


Publication metadata

Author(s): Bell NA, Branston TN, Clegg W, Parker L, Raper ES, Sammon C, Constable CP

Publication type: Article

Publication status: Published

Journal: Inorganica Chimica Acta

Year: 2001

Volume: 319

Issue: 1-2

Pages: 130-136

ISSN (print): 0020-1693

ISSN (electronic): 1873-3255

Publisher: Elsevier B.V.

URL: http://dx.doi.org/10.1016/S0020-1693(01)00448-0

DOI: 10.1016/S0020-1693(01)00448-0


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