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Complexes of heterocyclic thiones and group 12 metals: part VI. Preparation and characterisation of complexes of cadmium(II) halides with 1-methylimidazoline-2(3H)-thione, 1,3-thiazolidine-2-thione and 1,3-benzothiazoline-2-thione. Crystal structures of polymeric (1,3-thiazolidine-2-thione)cadmium(II) chloride, bis(1,3-thiazolidine-2-thione)cadmium(II) iodide and monomeric bis(1-methylimidazoline-2(3H)-thione)cadmium(II) bromide

Complexes of heterocyclic thiones and group 12 metals: part VI. Preparation and characterisation of complexes of cadmium(II) halides with 1-methylimidazoline-2(3H)-thione, 1,3-thiazolidine-2-thione and 1,3-benzothiazoline-2-thione. Crystal structures of polymeric (1,3-thiazolidine-2-thione)cadmium(II) chloride, bis(1,3-thiazolidine-2-thione)cadmium(II) iodide and monomeric bis(1-methylimidazoline-2(3H)-thione)cadmium(II) bromide
Complexes of heterocyclic thiones and group 12 metals: part VI. Preparation and characterisation of complexes of cadmium(II) halides with 1-methylimidazoline-2(3H)-thione, 1,3-thiazolidine-2-thione and 1,3-benzothiazoline-2-thione. Crystal structures of polymeric (1,3-thiazolidine-2-thione)cadmium(II) chloride, bis(1,3-thiazolidine-2-thione)cadmium(II) iodide and monomeric bis(1-methylimidazoline-2(3H)-thione)cadmium(II) bromide
Reactions of 1-methylimidazoline-2(3H)-thione (meimz2SH), 1,3-thiazolidine-2-thione (tzdSH) and 1,3-benzothiazoline- 2-thione (bztzSH) with cadmium(II) halides in ethanol solutions result in the formation of 1:1 complexes for the chloride, both 1:1 and 2:1 complexes for the bromide, and only 2:1 complexes for the iodide. Spectroscopic evidence confirms the exocyclic sulfur atom to be the donor in all cases. Cadmium(II) acetate and the heterocyclic ligands in the presence of triethylamine form the insoluble deprotonated complexes. The structure of (tzdSH)CdCl2, consists of double halogen-bridged chains, linked into sheets via (NHCl)-Cl-... interactions and with the heterocycle coordinated to the metal via the exocyclic sulfur atom. Thus each cadmium is approximately octahedrally surrounded by one sulfur, 2 two-coordinate and 3 three-coordinate chlorine atoms. In contrast (tzdSH)(2)CdI2, forms chains via (IS)-S-... interactions; the metal is tetrahedrally coordinated by two sulfur and two iodine atoms. The structure of (meimz2SH)(2)CdBr2, consists of discrete complex molecules with essentially tetrahedrally coordinated Cd and no significant intermolecular interactions; the six molecules in the asymmetric unit are related by pseudo-symmetry and are very similar except for variation in the orientation of the heterocyclic substituents.
crystal structures, cadmium(ii) complexes, thione/thionate complexes, halide complexesmercury(ii) halides, x-ray, 160 k, coordination chemistry, 1-methylanalog, ligands, 1, 3-imidazole-2-thione, cd(ii), zn(ii), hg(ii
0020-1693
2091-2099
Bell, Norman A.
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Clegg, William
5b1994af-8799-4402-9c01-8479959de00b
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Constable, Christopher P.
7912c612-0d01-4610-a25e-cdd1bcadd9d0
Harrington, Ross W.
01d1f0bc-fc3e-43ae-a087-6cce0278128e
Hursthouse, Michael B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Light, Mark E.
cf57314e-6856-491b-a8d2-2dffc452e161
Raper, Eric S.
f60289e5-2e16-4263-8271-79aee02a3c9f
Sammon, Chris
cffbbbe0-8c84-4ca9-8dd6-2a698aafe2e6
Walker, Martin R.
6cb678d4-977c-4668-b17e-4a401d1cb52f
Bell, Norman A.
6f601e84-74aa-4000-9017-b0e23dc747f0
Clegg, William
5b1994af-8799-4402-9c01-8479959de00b
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Constable, Christopher P.
7912c612-0d01-4610-a25e-cdd1bcadd9d0
Harrington, Ross W.
01d1f0bc-fc3e-43ae-a087-6cce0278128e
Hursthouse, Michael B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Light, Mark E.
cf57314e-6856-491b-a8d2-2dffc452e161
Raper, Eric S.
f60289e5-2e16-4263-8271-79aee02a3c9f
Sammon, Chris
cffbbbe0-8c84-4ca9-8dd6-2a698aafe2e6
Walker, Martin R.
6cb678d4-977c-4668-b17e-4a401d1cb52f

Bell, Norman A., Clegg, William, Coles, Simon J., Constable, Christopher P., Harrington, Ross W., Hursthouse, Michael B., Light, Mark E., Raper, Eric S., Sammon, Chris and Walker, Martin R. (2004) Complexes of heterocyclic thiones and group 12 metals: part VI. Preparation and characterisation of complexes of cadmium(II) halides with 1-methylimidazoline-2(3H)-thione, 1,3-thiazolidine-2-thione and 1,3-benzothiazoline-2-thione. Crystal structures of polymeric (1,3-thiazolidine-2-thione)cadmium(II) chloride, bis(1,3-thiazolidine-2-thione)cadmium(II) iodide and monomeric bis(1-methylimidazoline-2(3H)-thione)cadmium(II) bromide. Inorganica Chimica Acta, 357 (7), 2091-2099. (doi:10.1016/j.ica.2003.10.036).

Record type: Article

Abstract

Reactions of 1-methylimidazoline-2(3H)-thione (meimz2SH), 1,3-thiazolidine-2-thione (tzdSH) and 1,3-benzothiazoline- 2-thione (bztzSH) with cadmium(II) halides in ethanol solutions result in the formation of 1:1 complexes for the chloride, both 1:1 and 2:1 complexes for the bromide, and only 2:1 complexes for the iodide. Spectroscopic evidence confirms the exocyclic sulfur atom to be the donor in all cases. Cadmium(II) acetate and the heterocyclic ligands in the presence of triethylamine form the insoluble deprotonated complexes. The structure of (tzdSH)CdCl2, consists of double halogen-bridged chains, linked into sheets via (NHCl)-Cl-... interactions and with the heterocycle coordinated to the metal via the exocyclic sulfur atom. Thus each cadmium is approximately octahedrally surrounded by one sulfur, 2 two-coordinate and 3 three-coordinate chlorine atoms. In contrast (tzdSH)(2)CdI2, forms chains via (IS)-S-... interactions; the metal is tetrahedrally coordinated by two sulfur and two iodine atoms. The structure of (meimz2SH)(2)CdBr2, consists of discrete complex molecules with essentially tetrahedrally coordinated Cd and no significant intermolecular interactions; the six molecules in the asymmetric unit are related by pseudo-symmetry and are very similar except for variation in the orientation of the heterocyclic substituents.

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Published date: 10 May 2004
Keywords: crystal structures, cadmium(ii) complexes, thione/thionate complexes, halide complexesmercury(ii) halides, x-ray, 160 k, coordination chemistry, 1-methylanalog, ligands, 1, 3-imidazole-2-thione, cd(ii), zn(ii), hg(ii

Identifiers

Local EPrints ID: 20130
URI: https://eprints.soton.ac.uk/id/eprint/20130
ISSN: 0020-1693
PURE UUID: b4530fbd-7596-443d-a641-561b0d395858
ORCID for Simon J. Coles: ORCID iD orcid.org/0000-0001-8414-9272
ORCID for Mark E. Light: ORCID iD orcid.org/0000-0002-0585-0843

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Date deposited: 23 Feb 2006
Last modified: 06 Jun 2018 12:54

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Contributors

Author: Norman A. Bell
Author: William Clegg
Author: Simon J. Coles ORCID iD
Author: Christopher P. Constable
Author: Ross W. Harrington
Author: Mark E. Light ORCID iD
Author: Eric S. Raper
Author: Chris Sammon
Author: Martin R. Walker

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