Syntheses and structural characterization of organotin(IV) complexes derived from reaction of 2,3-diphenylpropionic acid and various alkyltin salts

Abstract

Five new organotin(IV) complexes, [(R3Sn)(O2C15H13)] n (R = Me: 1; nBu: 2), [RSn(O)(O2C15H13)]6 (R = Ph: 3), [(R2Sn)2(O2C15H13)2(μ 3-O)]2 (R = Me: 4), and [(R2Sn)(O2C15H13)2] (R = nBu: 5), have been prepared by the reaction of 2,3-diphenylpropionic acid and the corresponding organotin chloride with sodium ethoxide in methanol. All the complexes were characterized by elemental analysis, FT-IR, NMR (1H, 13C, 119Sn) spectroscopy, TGA, and X-ray crystallography. The structural analyses reveal that 1 and 2 are 1-D infinite polymeric chains with Sn in syn–anti conformation. Complex 3 has a drum structure with six Sn centers. Complex 4 has a supramolecular chain-like ladder through weak intermolecular Sn ··· O interactions. Complex 5 is a monomer, connected into a 1-D polymer through intermolecular C–H ··· O interactions. Complexes 1 and 5 crystallize in the orthorhombic space groups P212121 and P21212, which are chiral space groups.