Mono-olefin chelate complexes of iron(0) and ruthenium(0) with an olefinic tertiary phosphine
Abstract
Reaction of 2-vinylphenyl(diphenyl)phosphine, o-CH2: CH·C6H4·PPh2(sp), with M3(CO)12(M = Fe or Ru) gives monomeric complexes M(CO)3(sp) and M(CO)2(sp)2; the former are chelate mono-olefin complexes containing bidentate (sp), while Fe(CO)2(sp)2 is shown by our X-ray structural analysis to contain a bidentate (sp) ligand, and a monodentate P-bonded (sp) moiety, in a configuration approximating to a trigonal bipyramid.