Synthesis and structural characterization of organotin(IV) carboxylates based on different heterocyclic substituents

Six novel organotin(IV) carboxylates have been successfully synthesized, namely, the polymer (C6H5)3Sn(L1)∞ (1) [HL1 = 4-imidazolyl benzoic acid], the mononuclear (C6H5)3Sn(L2) (2) [HL2 = 4-pyrazolylbenzoic acid], (C6H5)3Sn(L3)·CH3OH (3) [HL3 = 4-triazolylbenzoic acid] and (C6H5)3Sn(L4) (4) [HL4 = 4-tetrazolyl benzoic acid] and the tetranuclear [(n-Bu2Sn)4(L2)2O2(OCH3)2] (5) and [(n-Bu2Sn)4(L3)2O2(OCH3)2] (6). X-ray diffraction analyses show 1D infinite chain of polymer 1, single molecular structures of isomorphous complexes 2 and 4, single molecule structures of complex 3 containing solvent CH3OH molecule and similar ladder-type structures of complexes 5 and 6. The photoluminescence of ligands and 1–6 were also measured in the solid state at room temperature.

Six novel organotin(IV) carboxylates 1–6 were obtained by four carboxylic acids containing different azole groups and organotin. X-ray diffraction analyses show 1D infinite chain of polymer 1, single molecular structures of isomorphous complexes 2 and 4, single molecule structures of complex 3 containing solvent CH3OH molecule and similar ladder-type structures of complexes 5 and 6.Figure optionsDownload as PowerPoint slide