Diorganotin 2-(2-(4-methoxybenzoyl)hydrazono)-3-phenylpropanoic carboxylate complexes I {[p-CH3O-C6H4O(O)C=N-N=C(PhCH2)COO](n-Bu)(2)Sn(CH3OH)}(2) and II [p-CH3O-C6H4O(O)C=N-N=C(PhCH2)COO](PhCH2)(2)Sn(CH3OH)}(2) have been synthesized. The complexes have been characterized by IR, H-1, C-13 and Sn-119 NMR spectra, FIRMS, elemental analysis, thermal stability analysis and the crystal structures have been determined by X-ray diffraction. The crystal of complex I belongs to triclinic system, space group P (1) over bar with a = 10.437(2), b = 11.576(3), c = 13.085(3) angstrom, alpha = 66.272(2)degree...