Labile adducts of TiCl4 with thionyl chloride structurally characterized at low temperature: a comparison with the zirconium and hafnium analogues, [MCl4(SOCl2)]2

Abstract

The thermally unstable (decomp. ca. –30°C) titanium derivative [TiCl₄(SOCL₂)]₂, prepared from TiCI₄ and SOCI₂, forms three crystalline modifications (I–III) in temperature range between 220 and 234 K; these modifications differ in the orientation of the SOCI₂ ligand with respect to the titanium-containing fragment within the dinuclear molecule and and in the packing modes due to intermolecular S˙ ˙ ˙CL interactions at distances between 3.25 and 3.82 Å.