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

ABSTRACT

A series of tri- and diorganotin(IV) complexes of the general formula R_4−nSnL_n (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 P2_1/a with a monoclinic crystal system.

ACKNOWLEDGMENT

Financial support from Quaid-i-Azam University as URF is greatly acknowledged. SA is thankful to the Alexander von Humboldt Foundation for awarding a Georg Forster Research Fellowship and Prof. Dr. B. Wrackmeyer, University of Bayreuth, Germany, for providing spectral facilities.