Four- five- and six-co-ordinated pentafluorophenylthallium(III) complexes. Crystal structures of [Tl(C6F5)3(OPPh3)], [Tl(C6F5)2Cl(OPPh3)]2 and [Tl(C6F5)2(OdppmO)2][Tl(C6F5)2Cl2)].
- Mendia, A. 1
- Cerrada, E. 3
- Fernandez, E.J. 2
- Laguna, A. 3
- Laguna, M. 3
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1
Universidad de Burgos
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2
Universidad de La Rioja
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3
Instituto de Nanociencia y Materiales de Aragón
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ISSN: 0022-328X
Year of publication: 2002
Volume: 663
Issue: 1-2
Pages: 289-296
Type: Article
More publications in: Journal of Organometallic Chemistry
Abstract
[NBu4][Ag(C6F5)2] or [Ag(C6F5)] act as arylating ligands able to transfer two or one pentafluorophenyl groups to [Tl(C6F 5)2Cl] leading to [NBu4][Tl (C6F5)4] (1) and [Tl(C6F5)3(diox)] (diox = 1,4 dioxane) (2) in an improved synthesis, the latter being a starting material for the synthesis of [Tl(C6F5)3 (OPPh3)] (3) and [Tl(C6F5)3(PPh3)] (4). However, [Ag(C6F5)L] does not transfer the pentafluorophenyl group when reacted with [Tl(C6F5) 2Cl] and the complexes [Tl(C6F5) 2Cl(py)]2 (5), [Tl(C6F5) 2Cl(OPPh3)]2 (6) and [Tl (C6F5)2(OdppmO)2][Tl (C6F5)2Cl02] (7) are obtained as the main products, which can be obtained in a better yield by the addition of the neutral ligands to [Tl(C6F5)2Cl]. The X-ray structure of complexes 3,6 and 7 show thallium(III) centres in a tetrahedral, trigonal bipyramidal or octahedral arrangements, respectively. © 2002 Elsevier Science B.V. All rights reserved.
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