The bis(3-ethoxysalicylaldehyde) 1,3-benzyldiacyl hydrazone (H4L) ligand was prepared by the reaction of 3-ethoxysalicylaldehyde with benzene-1,3-dicarbohydrazide in ethanol solution. Bis(3-ethoxysalicylaldehyde) 1,3-benzyldiacyl hydrazone tetrabutyl(phenyl)ditin, Bu4Sn2L (T1) and Ph4Sn2L (T2), were synthesized by solvothermal reaction of H4L with dibutyltin oxide and triphenyltin hydroxide in methanol, respectively. The structures of ligand and complexes were characterized by elemental analysis, IR, UV-Vis spectroscopy, NMR, and single-crystal...