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Issue 7, 1998
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The conformational analysis of phosphine ligands in organometallic complexes. Part 1. Triphenylphosphine coordinated to an achiral metal centre 1

Abstract

The conformational analyses of PPh3 1 and the representative achiral metal complexes [Al(PPh3)(Me)3] 2, [Fe(PPh3)(CO)4] 7 and [Ir(PPh3)2(CO)3]+ 8 possessing tetrahedral and trigonal-bipyramidal geometries are reported, and comparisons between the calculated and solid-state structures are made. The intramolecular non-bonded interactions which govern the conformational preferences of PPh3 in both the free and complex-bound state are characterised. The equilibrium between the opposing inter ring–ring and inter ring–ligand interactions which govern the minimum energy conformations of these complexes is examined. Analysis of the conformational preferences of PPh3 ligands in metal complexes is facilitated by the introduction of the novel concept of the plane of nadir energy.

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Article information


J. Chem. Soc., Perkin Trans. 2, 1998, 1683-1690
Article type
Paper

The conformational analysis of phosphine ligands in organometallic complexes. Part 1. Triphenylphosphine coordinated to an achiral metal centre 1

J. F. Costello and S. G. Davies, J. Chem. Soc., Perkin Trans. 2, 1998, 1683
DOI: 10.1039/A708014J

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