Syntheses and single-crystal structures of novel soluble phosphonato- and phosphinato-bridged titanium oxo alkoxides

Abstract

The reactions of PhP(O)(OH)₂ or Ph₂P(O)OH with Ti(OPrⁱ)₄ in DMSO give the soluble tetranuclear complexes [Ti₄(µ₃-O)(OPrⁱ)₅(µ-OPrⁱ)₃(PhPO₃)₃]·DMSO 1 or [Ti(µ₃-O)(OPrⁱ)(Ph₂PO₂)]₄·0.5DMSO 2, the first examples of phosphonato- and phosphinato-bridged titanium oxo alkoxides, which have been characterised by single-crystal X-ray diffraction.

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