Crystal structure of cis-dichloro-cis-bis(dimethylsulphoxide)-trans-di-methyltin(IV)

Abstract

The crystal structure of cis-dichloro-cis-bis(dimethylsulphoxide)-trans-dimethyltin(VI), C₆H₁₈Cl₂O₂S₂Sn, has been determined by use of three-dimensional equi-inclination Weissenberg X-ray diffraction data with 947 visually estimated reflections. The orthorhombic unit cell, space group P2₁2₁2₁, has dimensions, a= 13·39(1), b= 15·58(1), c= 6·95(1)Å, with Z= 4. The structure was refined by least-squares methods to a conventional R of 0·12. The tin atom has an octahedral environment with cis-chlorine atoms and -(dimethyl sulphoxide) groups, bonded through the oxygen, and trans-methyl groups. [Sn–Cl, 2·48(1), 2·53(1); Sn–O, 2·32(3), 2·38(3); Sn–C, 2·07(6), 2·08(5)Å, C–Sn–C, 170(2)°].