Article,

Synthesis and Structural Characterization of Three New Tetraorganodistannoxanes

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JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS, 23 (6): 1318-1324 (November 2013)
DOI: {10.1007/s10904-013-9926-6}

Abstract

An efficient method was developed for the preparation of three tetraorganodistannoxane complexes, (C2H5)(8)Sn4Cl2(CH3O)(2)O-2 (1), (CH3)(8)Sn-4(C3H4N3S)(2)(CH3O)(2)O-2 (2) and (C4H9)(8)Sn-4(C3H4N3S)(2)(CH3O)(2)O-2 (3). All prepared complexes were characterized by infrared, H-1, C-13 and Sn-119 NMR spectroscopes and elemental analysis. The molecular structure of a representative complex (1) was determined by single-crystal X-ray diffraction. Results showed that 1 is a tetranuclear, centrosymmetric dimeric, and contains two endo-cyclic five-coordinated tin atoms and two exo-cyclic five-coordinated tin atoms. Compound 1 lies about a center of inversion and the tetranuclear molecule features a three-ring-staircase Sn4O4 core. The asymmetric unit of 1 contains two independent Sn(IV) atoms and a 2D infinite rigid chain structure forms via C-H center dot center dot center dot Cl interactions between tetranuclear units.

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