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Main Group Metal Chemistry

Editor-in-Chief: Jurkschat, Klaus

Editorial Board Member: Atwood, David / Beckmann, Jens / Chandrasekhar, Vadepalli / Izod, Keith / Jones, Cameron / Karlov, Sergey S. / Mehring, Michael / Molloy, Kieran / Ruhlandt-Senge, Karin / Ruzicka, Ales / Tokitoh, Norihiro

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Crystal and molecular structure of diorganoammonium oxalatotrimethylstannate, [R2NH2][Me3Sn(C2O4)] (R=i-Bu, cyclohexyl)

Yaya Sow1 / 1 / Kieran C. Molloy2 / Gabrielle Kociok-Köhn2

1Laboratoire de Chimie Minérale et Analytique (LACHIMIA), Département de Chimie, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, Dakar, Senegal

2Department of Chemistry, University of Bath, Bath BA2 7AY, UK

Corresponding author

Citation Information: Main Group Metal Chemistry. Volume 34, Issue 5-6, Pages 127–130, ISSN (Online) 2191-0219, ISSN (Print) 0792-1241, DOI: 10.1515/mgmc-2011-0018, December 2011

Abstract

The title compounds [R2NH2][C2O4SnMe3](R=i-Bu, Cy), in which tin atoms adopt a distorted trigonal bipyramidal configuration, have been prepared and submitted to an X-ray diffraction study. These compounds have been obtained from the reaction of (Cy2NH2)2C2O4·H2O or (i-Bu2NH2)2C2O4 with SnMe3Cl. In both [R2NH2][C2O4SnMe3] compounds, the trans complex has an almost regular trigonal bipyramidal geometry around the tin atom. The SnMe3 residues are connected as a chain with bridging oxalate anions in a trans-SnC3O2 framework, the oxygen atoms being in axial positions. The cations connect linear adjacent chains through NH…O hydrogen bonds giving layered structures.

Keywords: bridging oxalate; hydrogen bonds; layered structures; X-ray structure

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