Preparations, infrared spectra, and structures of some zinc and cadmium arenesulphinates

P. G. Cookson, G. B. Deacon

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Abstract

The complexes, M(O2SR)2, 2H2O (M = Zn or Cd; R = Ph or p-MeC6H4), have been prepared by metathesis reactions from the corresponding sodium arenesulphinates or arenesulphinic acids. Zinc benzenesulphinate has also been obtained from the reaction of diphenylzinc with sulphur dioxide and from the reduction of mercuric benzenesulphinate with zinc dust. Anhydrous zinc and cadmium arenesulphinates, M(O2SR)2, have been prepared by heating the dihydrates, and each cadmium complex has been obtained in two crystalline forms. From their isomorphism with the corresponding cobalt complexes, the zinc and cadmium arenesulphinate dihydrates have been shown to have octahedral stereochemistry. Both the hydrated and the anhydrous arenesulphinato complexes have sulphur-oxygen stretching frequencies indicative of O-sulphinate coordination, and polymeric structures based on bridging bidentate O-sulphinate groups are likely for all the complexes.

Original languageEnglish
Pages (from-to)935-944
Number of pages10
JournalAustralian Journal of Chemistry
Volume24
Issue number5
DOIs
Publication statusPublished - 1 Jan 1971

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