Titanium(III) alkoxides. A new synthetic route and solid state properties (CP/MAS 13C NMR, X-ray and IR)

Ti(OR) 3 compounds (R=C 2 H 5 , C 4 H 9 n , C 6 H 5 ) were prepared by reduction of titanium tetralkoxides with organosilicon compounds containing SiH bonds. The reaction mechanism probably involves a four membered cyclic intermediate. The tervalent alkoxides have been characterized by elemental analyses, X-ray powder diffraction, infrared spectroscopy and solid-state magic angle sample spinning 13 C NMR. The compounds are polymeric owing to the presence of alkoxide bridges. They are diamagnetic, insoluble materials which decompose on melting. Previously reported results are critically discussed and compared with the experimental findings from both infrared and NMR spectroscopy.