Some reactions of tin oxide chloride and titanium oxide chloride

Abstract
Some reactions of tin oxide chloride with pyridine and with tetrahydrothiophen are reported, and it is suggested that products are normally of the form SnO2 and SnCl4,L2. Reaction of tin oxide chloride or titanium oxide chloride with acetylacetone appears to lead to the known compounds MCl2(acac)2(where Hacac = acetylacetone, M = Sn or Ti). Several preparations of “TiO(acac)2” did not (with the present authors) lead to a monomeric species. The nature of the cation TiOCl4 2– is discussed as is the characterisation of “metal–oxygen double bonds” using vibrational spectroscopy.

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