Synthesis, Structure and Thermal Decomposition of the Bismuth Silyltellurolate Bi(TeSitBu2Ph)3

The compound Bi(TeSitBu2Ph)3 (1) was obtained from the reaction of BiCl3 with tBu2PhSiTeSiMe3 in diethyl ether. The single crystal structure analysis revealed a trigonal pyramidal structure of the BiTe3 core and weak Bi···C(arene) contacts. Compound 1 was characterized by multinuclear NMR spectroscopy, IR spectroscopy and elemental analysis. Thermogravimetric experiments show that compound 1 decomposes with formation of Bi2Te3 or a mixture of elemental bismuth and Bi4Te3, depending on the pressure conditions.