C2O4(SnPh3)2 ISOMERS AND SOME OF THEIR ADDUCTS: SYNTHESIS AND SPECTROSCOPIC CHARACTERIZATION

  • YAYA SOW
    Université Cheikh Anta Diop Faculté des Sciences et Techniques, Département de Chimie Laboratoire de Chimie Minérale et Analytique (LACHIMIA), Dakar Sénégal
  • CHEIKH ABDOUL KHADIR DIOP
    Université Cheikh Anta Diop Faculté des Sciences et Techniques, Département de Chimie Laboratoire de Chimie Minérale et Analytique (LACHIMIA), Dakar Sénégal
  • LIBASSE DIOP
    Université Cheikh Anta Diop Faculté des Sciences et Techniques, Département de Chimie Laboratoire de Chimie Minérale et Analytique (LACHIMIA), Dakar Sénégal
    dlibasse@gmail.com
  • BERNARD MAHIEU
    Laboratoire de Chimie Inorganique et Nucléaire, Université Catholique de Louvain,1348 Louvain-La-Neuve, Belgique
  • LORENZO STIEVANO
    Laboratoire de Réactivité de Surface UMR 7609, Université Pierre et Marie Curie Paris VI, Casier 178,75252 Paris CEDEX 05, France

Abstract

The study of the interactions between C2O4(SnPh3)2 and a Lewis base (Ph3PO) or salts such as Ph4PCl, (Bu2NH2)2C2O4.3H2O, (Pr2NH2)2C2O4(Cy2NH2)2C2O4.2H2O have yielded seven new adducts, infrared and Mossbauer studies which have been carried out. The suggested structures are discrete or of infinite chain type. Most of the structures contain C2O4(SnPh3)2 with cis coordinated SnPh3 residues characterized for the first time in this work. In Ph3PO containing adducts the Lewis base coordinates a SnPh3 residue. The oxalate behaves as a mo- or bidentate, a mono- or bichelating, a only hydrogen bonds involved ligand. In the structures of the compounds containing a non symmetrical cation, this one is involved in N-H…O hydrogen bonds.

Cuvinte cheie

C2O4(SnPh3)2 in two different conformations discrete and infinite chains structures; IR Mossbauer trans and cis coordinated SnPh3 residues