TRIPHENYLTIN (IV) GLUTARATES: SYNTHESIS, FT-IR AND MĂ–SSBAUER STUDIES
MOUHAMADOU SEMBENE BOYE 1, 2*, MOUHAMADOU BIRAME DIOP 2, MODOU SARR 2, AMINATA DIASSE-SARR 2, LIBASSE DIOP 2, ALAIN WATTIAUX 3 1. Universite Cheikh Anta Diop, Faculte des Sciences et Technologies de l’Education et de la Formation, Departement de Physique et Chimie, Boulevard Habib Bourguiba BP 5036 Fann-Dakar, Senegal
2. Universite Cheikh Anta Diop, Faculte des Sciences et Techniques/ Departement de Chimie, Laboratoire de Chimie Minerale et Analytique, Dakar, Senegal
3. Universite de Bordeaux/CNRS ICMCB, 87 avenue du Dr A. Schweitzer, Pessac F-33608, France
*Corresponding author, email: mouhasboye@hotmail.com
Four new adducts catena-O,O′-glutaratotriphenylstannate, [(Me4N)2O2C(CH2)3CO2·4SnPh3Cl] (1), [(Me4N)2O2C(CH2)3CO2·3SnPh3Cl] (2), [(SnPh3)2O2C(CH2)3CO2·SnPh3Cl] (2′) and [(Cy2NH2)2O2C(CH2)3CO2·SnPh3Cl] (3), have been isolated from the reactions carried out in solution. The compounds have been characterized by FT-IR and Mössbauer spectroscopies except for 2’ whose structure is proposed on the basis of FT-IR data. Overall, the spectra studies sheew existence of several caracteristic bands such as υ (C=O), υ (CO2–), υ (Sn–O), υ (Sn–Cl), vibrations of glutarate ions, and the intense doublet showing the presence of phenyl groups. In the solid state, the suggested structures are discrete or of infinite chain. In this work, the geometry at Sn centers, trigonal bipyramidal or tetrahedral, is ascertained by the Mössbauer parameters. The glutarate ions exhibit a monodentate, tridentate or tetradentate coordination behavior towards the Sn atoms.
