SYNTHESIS AND SPECTROSCOPIC CHARACTERIZATION OF SOME NEW HYDROGENOXALATO ORGANOTIN (IV) COMPLEXES

Autori: MOUHAMADOU SEMBENE BOYE(1*), AMINATA DIASSE-SARR(2), LIBASSE DIOP(2)

1. University Cheikh Anta Diop, Faculty of Sciences and Technologies of Education and Training, Department of Physics Chemistry, Boulevard Habib Bourguiba, 5036 Fann-Dakar, Senegal
2. Senegal Cheikh Anta Diop University, Faculty of Science and Technology, Department of Chemistry, Laboratory of Mineral and Analytical Chemistry, Dakar, Senegal.
*Corresponding author, email: mouhasboye@hotmail.com

Abstract

The synthesis and spectroscopic studies (infrared and Mössbauer) of new hydrogenoxalato derivatives and adducts containing SnRn (R=Me, Ph; n=2, 3) residues are reported. Based on their spectroscopic data dimeric and polymeric structures containing hexacoordinated or pentacoordinated Sn are suggested, the hydrogenoxolate anion behaving as a monocoordinating or a monochelating ligand. In two studied adducts, supramolecular architectures may be obtained when extra hydrogen bonds involving the free NH groups are considered.

Cuvinte cheie

dimeric and polymeric structures hydrogenoxalate monochelating monocoordinating octahedral or trigonal bipyramidal environments spectroscopy supramolecular architectures