(n-C4H9)3SnO2C(CH2)2CO2Sn(C4H9-n)3:A Novel Three-dimensional Framework Structure of Organotin Complex

摘要

The bis(tributyltin) ester of succinic acid was synthesized by the reaction of disodium salt of succinic acid with tributyltin chloride in a molar ratio of 1:2. The crystal structure was determined by X-ray single-crystal diffraction. It belongs to orthorhombic with space group Pccn, a = 20.949(3), b = 17.470(3), c = 20.345(3)(A。), V = 7446(2) (A。)3, Z = 8, Dc = 1.242 g/cm3, β = 1.365 mm－1, F(000) = 2864, R = 0.0544 and wR = 0.1417. The tin atom is of five-coordination in a trigonal bipyramidal structure by bridging two carboxylate groups in different directions and the resulting structure which contains straight twist large ring channels along the axes of a, b and c is a three-dimensional framework polymer containing two different tin atoms.