Synthesis, crystal structure, and thermal properties of the volatile compound (CH3)(2)Sn(i-C3H7OCS2)(2)

The procedure for synthesizing the (CH3)(2)Sn(i-PrOCS2)(2) complex in water was elaborated. Its single crystals were grown, and the compound was struc turally characterized by X-ray diffraction analysis (a CAD-4 diffractometer , MoKalpha radiation, 2897 F-hkl, R = 0.0282). The crystals are orthorhombi c, a = 29,822(6), b = 20.508(4), c = 11.887(2) Angstrom, V = 7270(2) Angstr om(3), p(calcd) = 1.532 g/cm(3), space group Aba2, Z = 16. The structure is built from two types of crystallographically independent monomeric molecul es. The coordination sphere of the Sn atoms includes four S atoms of two bi dentate cyclic xanthate ligands and two methyl C atoms. The Sn coordination number is 6. When heated in vacuo (1 x 10(-3) mmHg), the complex evaporate s. Its thermolysis (T = 430 degrees C) results in SnO (in air) or SnS (in a rgon).