Synthesis and spectroscopic studies of new adducts of organotin(IV) chlorides with a polydentate N,S ligand

The reaction of a polydentate N,S ligand, 1'-amino-1'-cyclohexyl 2-cyclohexylideneamino-1-cyclohexene-1-dithiocarboxylate (ACCCD), with Ph2SnCl2, Ph3SnCl and Me2SnCl2 was investigated. The new adducts have been characterized by UV-Vis, H-1 NMR, IR, mass spectroscopy and elemental analysis. These data are consistent with 1:1 adducts. The ligand behaves as a bidentate and shows both nitrogen and sulfur coordination. There is also evidence that the ligand ACCCD exhibits some interest in forming possible inter-/intra-molecular hydrogen bonds through Cl ... H2N interactions in Me2SnCl2 and Ph2SnCl2 adducts. The UV-Vis spectra indicate that the compounds partially dissociate in chloroform. (C) 1999 Elsevier Science S.A. All rights reserved.