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DOI: 10.1039/A605678D (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1997, 287-292

Insertion of COS into Group 2 metal–ethoxide bonds; crystal structures of [Mg(OCSOEt)2(EtOH)4] and [Sr3(OCSOEt)6(EtOH)8]

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Izoldi K. Bezougli, Alan Bashall, Mary McPartlin and D. Michael P. Mingos

Abstract

Some compounds of the alkaline-earth metals, which result from the insertion of COS into metal–ethoxide bonds, have been synthesized and characterised. The crystal structure of the first linear trinuclear metal strontium complex [Sr3(OCSOEt)6(EtOH)8] 2, which resulted from the reaction of [{Sr(OEt)2(EtOH)4}n] with COS gas, has been determined. The octahedral monomer [Mg(OCSOEt)2(EtOH)4] 1 resulted from the insertion of a molecule of COS into the ethoxide bonds of [{Mg(OEt)2(EtOH)4}n]. The structures demonstrate three alternative co-ordination modes of the OCS(OR)- ligand.

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