Comparison of the NMR enantiodifferentiation of a chiral ruthenium(II) complex of C2 symmetry using the TRISPHAT anion and a lanthanide shift reagent

Gilles Bruylants; Carole Bresson; Arnaud Boisdenghien; Frédéric Pierard; Andrée Kirsch-De Mesmaeker; Jérôme Lacour; Kristin Bartik

doi:10.1039/B211419D

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Comparison of the NMR enantiodifferentiation of a chiral ruthenium(ii) complex of C₂ symmetry using the TRISPHAT anion and a lanthanide shift reagent

Gilles Bruylants,^a Carole Bresson,^b Arnaud Boisdenghien,^b Frédéric Pierard,^b Andrée Kirsch-De Mesmaeker,^b Jérôme Lacour^c and Kristin Bartik*^a

Author affiliations

* Corresponding authors

^a Ingénierie Moléculaire et Biomoléculaire (CP 164/65), Ecole Polytechnique, Université Libre de Bruxelles, 50 Av FD Roosevelt, Bruxelles, Belgium
E-mail: kbartik@ulb.ac.be

^b Service de Chimie Organique et Photochimie (CP 160/08), Faculté des Sciences, Université Libre de Bruxelles, 50 Av FD Roosevelt, Bruxelles, Belgium

^c Département de Chimie Organique, Université de Genève, Quai Ernest Ansermet 30, Genève 4, Switzerland

Abstract

The tris[tetrachlorobenzenediolato]phosphate(V) anion (TRISPHAT) is known to be an efficient NMR chiral shift agent for various chiral cationic species. Here we compare the efficiency of TRISPHAT and of a chiral lanthanide shift reagent for the determination of the enantiomeric purity of the chiral building block [Ru(phen)₂py₂]²⁺ which possesses C₂ symmetry. We also discuss our results in terms of the geometry of interaction between the Ru(II) complex and the TRISPHAT anion.

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Article information

DOI: https://doi.org/10.1039/B211419D
Article type: Paper
Submitted: 18 Nov 2002
Accepted: 24 Feb 2003
First published: 06 Mar 2003

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New J. Chem., 2003,27, 748-751

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Comparison of the NMR enantiodifferentiation of a chiral ruthenium(II) complex of C₂ symmetry using the TRISPHAT anion and a lanthanide shift reagent

G. Bruylants, C. Bresson, A. Boisdenghien, F. Pierard, A. Kirsch-De Mesmaeker, J. Lacour and K. Bartik, New J. Chem., 2003, 27, 748 DOI: 10.1039/B211419D

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