C2O4(SnPh3)2.2SnPh3OH and 2C2O4(SnPh3)2.SnPh3OH.2H2O:
Synthesis and Spectroscopic Characterization
Y. Sow1*, L. Diop1, L. Stievano2
1Laboratoire de Chimie Minérale et Analytique (LACHIMIA)
Département de Chimie, Faculté des Sciences et Techniques, Université Cheikh Anta Diop Dakar - Sénégal
2ICGm-AIME-UMR 5253, Université Montpellier II, Montpellier - France
* Corresponding author. E-mail: firstname.lastname@example.org
Received: 06 February 2013; revised version accepted: 20 March 2014
A tetra- and a pentanuclear oxalato tin (IV) adducts, containing a tetradentate oxalate or a bi- and a tetradentate oxalates, have been synthesized and characterized by elemental analyses, infrared and Mossbauer spectroscopy. The suggested structures are polymeric. The environment around the tin centre is trigonal bipyramidal, the SnPh3 residue being dissymmetrically trans-coordinated. In the case of the pentanuclear adduct, the H2O molecule is involved O H…O hydrogen bonds. In these two adducts SnPh3OH behaves simultaneously as a Lewis acid and base.
Keywords: Tetranuclear oxalate adduct; Trans coordinated SnPh3 residue; IR; Mossbauer; Discrete and polymeric structures; Hydrogen bonds.