R. King, C. Eggers
Mar 1, 1968
Citations
0
Influential Citations
16
Citations
Journal
Inorganica Chimica Acta
Abstract
Abstract Reactions of various metal carbonyl derivatives with cis -bis-1,2-(diphenylphosphino)ethylene, (C 6 H 5 ) 2 PCH CHP((C 6 H 5 ) 2 (designated as PfPf) are reported. In all cases studied this ligand acts as chelating ditertiary phosphine without the carbon-carbon double bond coordinating to the metal atom. The proton n.m.r. spectra of some of the complexes show a large downfield shift of the olefinic protons suggesting a ring current in the chelate ring. New compounds prepared characterized in this network in this work are (PfPf)M(CO) 4 (M = Cr, Mo and W), (PfPf)Fe(CO) 3 , (PfPf) Ni(CO) 2 and C 5 H 5 MnCO(PfPf).