Syntheses, characterizations and crystal structures of new triorgano-tin or -germanium complexes with 1H-5-mercapto-1,2,3-triazolato
摘要:
A series of triorganotin and triorganogermanium(IV) complexes with 1H-5-mercapto-1,2,3-triazolato, of the type R3MSC2H2N3 (M = Sn, R = CH3 (1); C2H5 (2); n-C4H9, (3); C6H5, (4); M = Ge, R = CH3, (5); C2H5, (6); n-C4H9, (7); C6H5, (8)), have been synthesized. All the complexes 1-8 have been characterized by elemental, IR and H-1 NMR analyses. Among them complexes 4 and 8 have also been characterized by X-ray crystallography diffraction analyses, which revealed that the Sn and Ge atom environments are distorted tetrahedral coordination polyhedrons, coordinated to three phenyl groups and to one sulfur atom of the ligand. The packing of complexes 4 and 8 is stabilized into a one-dimensional infinite chain by intermolecular N-(HN)-N-... hydrogen bonds. (C) 2004 Elsevier Ltd. All rights reserved.