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Issue 8, 2007
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Metal-directed assembly of combinatorial libraries—principles and establishment of equilibrated libraries with oligopyridine ligands

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Abstract

The cobalt(II) complexes [Co(bpy)3][PF6]2, [Co(Me2bpy)3][PF6]2 (Me2bpy = 4,4′-dimethyl-2,2′-bipyridine) and [Co(phen)3][PF6]2 give paramagnetically shifted 1H NMR spectra which may be fully assigned; the complexes are labile and ligand exchange is complete within mixing time in CD3CN solutions to give libraries of heteroleptic complexes which have been fully characterised by one- and two-dimensional 1H NMR spectroscopy. A library comprising mer and fac isomers of [CoL3]2+ (L = 2,2′-bipyridine-5-carbaldehyde) can be amplified by specific reaction of the fac stereoisomer with a triamine to give a new hexadentate ligand, although other ligand exchange processes compete.

Graphical abstract: Metal-directed assembly of combinatorial libraries—principles and establishment of equilibrated libraries with oligopyridine ligands

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Publication details

The article was received on 21 May 2007, accepted on 30 May 2007 and first published on 19 Jun 2007


Article type: Paper
DOI: 10.1039/B707601K
New J. Chem., 2007,31, 1437-1447

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    Metal-directed assembly of combinatorial libraries—principles and establishment of equilibrated libraries with oligopyridine ligands

    B. Brisig, E. C. Constable and C. E. Housecroft, New J. Chem., 2007, 31, 1437
    DOI: 10.1039/B707601K

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