Synthesis and structural characterization of organotin(IV) carboxylates based on different heterocyclic substituents
摘要:
Six novel organotin(IV) carboxylates have been successfully synthesized, namely, the polymer (C6H5)(3)Sn(L1)(infinity) (1) [HL1 = 4-imidazolyl benzoic acid], the mononuclear (C6H5)(3)Sn(L2) (2) [HL2 = 4-pyrazolylbenzoic acid], (C6H5)(3)Sn(L3)center dot CH3OH (3) [HL3 = 4-triazolylbenzoic acid] and (C6H5)(3)Sn(L4) (4) [HL4 = 4-tetrazolyl benzoic acid] and the tetranuclear [(n-Bu2Sn)(4)(L2)(2)O-2(OCH3)(2)] (5) and [(n-Bu2Sn)(4)(L3)(2)O-2(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. (C) 2011 Published by Elsevier Ltd.