P. Chaloner
May 1, 1984
Citations
0
Influential Citations
13
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract Bis(diphosphine)metal and (diphosphine)(diene)metal (M = Rh, Ir) cationic complexes containing 7-membered chelate rings have been studied by low temperature 31 P and 1 H NMR spectroscopy. For cyclooctadiene-1,4-bis(diphenylphosphino)butane- and -DIOP-rhodium, and cyclooctadiene-1,4-bis(diphenylphosphino)butane-iridium complexes, boat and chair conformations may be distinguished at low temperature. 1 H NMR spectra of these and analogous complexes suggest that both boat and chair conformers are significantly populated at room temperature. Bis(diphosphine) complexes of rhodium and iridium show very complex dynamic behaviour.