Synthesis of novel tin complexes using functionalized oxime ligands

Novel tin complexes stabilized by alkoxy-functionalized oxime ligands [Sn(L1)2]2 (1) and [Sn(L2)2]2 (2), were prepared and characterized. Single-crystal X-ray diffraction analysis revealed that the complexes were obtained as dimers in which the tin metal centers are bridged by a pair of μ2-oxygen atoms. Due to the ligand steric effects, the metal centers in these complexes adopted an unusual distorted square pyramidal geometry and displayed interesting structural features. The thermo-gravimetric analyses of the complexes showed major mass loss in the 175–380 °C region.