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Title

Chiral spiro Cu(I) complexes. Supramolecular stereocontrol and isomerisation dynamics by the use of TRISPHAT anions

Authors
Hebbe-Viton, Virginie
Desvergnes, Valérie
Dietrich-Buchecker, Christiane
Sauvage, Jean-Pierre
Published in Dalton Transactions. 2006, no. 17, p. 2058-65
Abstract Association of enantiopure TRISPHAT anion (1) with chiral spiro [Cu(LL')2] complexes (LL' = 2-R-phen, 2, 6-R-bpy, 3, and 2-iminopyridine, 4) leads to an efficient NMR enantiodifferentiation. Variable temperature 1H NMR spectroscopy has been used to determine the isomerisation kinetics of these pseudo-tetrahedral complexes and to evaluate their configurational stability; the latter depending on the structure of the diimine ligands. In the case of the 2-anthracenyl-phen derivative, a decent level of supramolecular stereocontrol was noted (d.e. up to 45%); the configuration of the complex being determined by electronic circular dichroism (ECD).
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PMID: 16625249
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HEBBE-VITON, Virginie et al. Chiral spiro Cu(I) complexes. Supramolecular stereocontrol and isomerisation dynamics by the use of TRISPHAT anions. In: Dalton Transactions, 2006, n° 17, p. 2058-65. https://archive-ouverte.unige.ch/unige:6662

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Deposited on : 2010-05-21

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