Synthesis and Spectral Characterization of Unsymmetric Organotin(IV) Derivatives

Authors: SADIQ-UR REHMAN, SAQIB ALI, MOAZZAM H. GHATTI, KHADIJA SHAHID, M. MAZHAR, M. KALEEM, AMIN BADSHAH

Abstract: Unsymmetric Organotin(IV) compounds of general formula R_{4-n}SnR^\prime_{n} have been synthesized by the reaction of corresponding organotin(IV) chlorides with n-hexyl magnesium bromide prepared in dry ether in situ, where R = CH_{3}, n-C_{4}H_{9}, C_{6}H_{5}, C_{6}H_{5}CH_{2} and R^\prime = n-C_{6}H_{13}. The reactions were carried out in dry toluene, refluxed for 6 h and the final products were purified through vacuum distillation. These compounds were characterized by multinuclear NMR (^{1}H, ^{13}C, ^{119}Sn), IR spectroscopy and mass spectrometry to predict their structures. All spectroscopic results support the four-coordination and tetrahedral geometry of the compounds.

Keywords: Unsymmetric organotin(IV) compounds, multinuclear NMR, tetrahedral organotin(IV) compounds.

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