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-alpha-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 (H-1, C-13, Sn-119) NMR, UV-Vis and mass spectrometery. An X-ray crystal structure of the representative compound (CH3)(3)SnL confirms a trigonal bipyramid around the tin atom, having the space group P2(1/a) with a monoclinic crystal system.