CRYSTAL-STRUCTURE OF TRIPHENYL(5-MERCAPTO-1-PHENYL-1,2,3,4-TETRAZOLATO)TINT(IV)

The title compound was prepared from 1-phenyl-5-thione-1,2,3,4-tetrazole and triphenyltin(IV) hydroxide and its crystal structure was determined by X-ray diffraction. The lattice is formed by discrete molecules that contain the tin atom coordinated to three phenyl groups and to the tetrazole via the deprotonated -SH group in a distorted tetrahedral coordination polyhedron. There is evidence of a very weak intramolecular interaction between N(4) of the tetrazole and the Sn atom. C-13 and N-15 NMR studies (CDCl3) suggest that in solution the tetrazole is also in the deprotonated thiol form, and binds to the tin via its S atom.