SYNTHESIS AND SPECTRAL STUDIES OF TRI- AND DIORGANOTIN(IV) COMPLEXES WITH 5-BENZOYL-α-METHYL-2-THIOPHENEACETIC ACID: CRYSTAL STRUCTURE OF [(CH₃)₃Sn(C₁₄H₁₁O₃S)]

A series of tri- and diorganotin(IV) complexes of the general formula R4−nSnLn (where R=CH3, C4H9, C6H6, C7H7, n=1, 2 and HL=5-benzoyl-α-methyl-2-thiopheneacetic acid) have been sythesized by the reaction of tri- and diorganotin- (IV) chloride(s) with the silver salt of the ligand in CHCl3 solution. All of the compounds have been characterized by IR, conductance measurement, multinuclear (1H, 13C, 119Sn) NMR, UV-Vis and mass spectrometery. An X-ray crystal structure of the representative compound (CH3)3SnL confirms a trigonal bipyramid around the tin atom, having the space group P21/a with a monoclinic crystal system.