Structural studies in main group chemistry: XXI. Complex formation between diphenyltin dichloride and benzthiazole and 2-aminobenzthiazole

Abstract

Diphenyltin dichloride forms 1 1 adducts with both benzthiazole and 2-aminobenzthiazole, for which tin-119m Mössbauer quadrupole splitting data suggest trigonal bipyramidal and distorted octahedral geometries, respectively. X-ray diffraction studies of the adduct with benzthiazole confirm the five-coordinated structure, and crystals are orthorhombic, space group P2 12 12 1 with a 11.521(4), b 12.349(8) and c 13.500(5) Å. The structure was determined from diffractometer data using Patterson and Fourier techniques, and crystals consist of discrete non-interacting Ph 2SnCl 2 · (benzthiazole) molecules. the two phenyl groups occupy two equatorial positions of the trigonal bipyramidal arrangement about the tin (mean SnC 2.112(8) Å), the third equatorial site being occupied by a chlorine atom at a SnCl distance of 2.336(1) Å. The second chlorine atom and the nitrogen atom of the benzthiazole ligand occupy the two axial positions (SnCl 2.446(1) Å; SnN 2.548(2) Å].