Reaction of benzyltrimethylsilane with tellurium(IV) chloride. Structure of bis(p-trimethylsilyltolyl)tellurium dichloride

The reaction of TeCl 4 with benzyltrimethylsilane in toluene gives condensation products, p -Me 3 SiCH 2 H 4 TeCl 3 and ( p -Me 3 SiCH 2 C 6 H 4 ) 2 TeCl 2 . Crystals of the latter are orthorhombic with space group Pbcn a 17.890(5), b 17.047(7) and c 8.169(3) A and Z = 4. The structure refined to a final R value of 0.0327 for 1490 unique “observed” reflections. The compound adopts a four-coordinate geometry with two Te⋯Cl secondary interactions completing a distorted octahedral configuration about the tellurium atom.