C. V. D. Moura, Ana P.G. de Sousa, R. Silva
Oct 1, 1999
Citations
1
Influential Citations
46
Citations
Journal
Polyhedron
Abstract
Reactions between Ph 3 SnCl and the sodium salts of 5-mercapto-1-methyltetrazole (MTS-H), 2-mercaptobenzoxazole (MBZ-H), 2-mercaptobenzothiazole (MBT-H) and 2-mercapto-1-methylimidazole (MMI-H) gave Ph 3 Sn(MTS) ( 5 : R=Ph, R′=Me), Ph 3 Sn(MBZ) 6 , Ph 3 Sn(MBT) 7 and Ph 3 Sn(MMI) 8 , respectively. Characterisation has been carried out for all compounds by IR, Mossbauer, 1 H, 13 C and 119 Sn NMR spectroscopy as well as by X-ray crystallography for ( 5 : R=Ph, R′=Me) and 6 . Both ( 5 : R=Ph, R′=Me) and 6 , in the solid state, have cis -trigonal bipyramidal geometries due to intramolecular Sn–N(2) interactions. Mossbauer data for 7 was interpreted as indicating a similar cis -trigonal bipyramid geometry. The chelating ability of nitrogen-containing heteroarenethiolato groups, based on the strength of Sn–N inter-molecular bonds in Ph 3 SnS-heteroarenes, decreases in the sequence: pyridine-2-thiolato>pyrimidine-2-thiolato>1-methylimidazole-2-thiolato>benzoxazole-2-thiolato>1-methyltetrazole-5-thiolato>1-phenyltetrazole-5-thiolato. On dissolution, the Sn–N interactions in 5 – 8 undergo at least partial breakage.