X-Ray photoelectron spectroscopic and infrared studies of some rhodium(I) aminophosphine complexes. Correlation with selected properties in homogeneous hydroformylation of 1-hexene
✍ Scribed by J. Grimblot; J.P. Bonnelle; A. Mortreux; F. Petit
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 736 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0020-1693
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✦ Synopsis
X-Ray photoelectron and infrared spectroscopies are used to analyse the electronic displacements on changing the ligands in RhCICOLz complexes, particularly with Ph 3-,, P(N{), (n = I ,2,3) aminophosphines. In the free aminophosphines, a back donation from N to P is shown, whereas in the rhodium complexes an unexpected behaviour is observed, as the electron transfer seems to be from P to N. By comparing the binding energies of the nitrogen and phosphorus atoms in these complexes and the results obtained in hydroformylation of I-hexene, a good correlation is found between this electron acceptor property and the normal to branched aldehyde ratio.