168205-76-3Relevant academic research and scientific papers
Preparation and properties of rhodium(I) and iridium(I) diolefin complexes of heterodifunctional phosporus-imine chelating ligands and a related iminophosphine. 103Rh NMR parameters of the rhodium complexes obtained via indirect two-dimensional 31P, 103Rh NMR spectroscopy
Law, David J.,Bigam, Glen,Cavell, Ronald G.
, p. 635 - 642 (2007/10/02)
Treatment of 2 (M=Rh, Ir) with iminophosphoranophosphine ligands of the type Ph2PQP(Ph2)=NSiMe3 (Q=CH2, CH2CH2, 1,2-C6H4) afforded the new metallacycles through elimination of Me3SiCl, ultimately anchoring the ligand to the metal through a metal-nitrogen ? bond.The phosphine functionality completes the chelate.Cationic complexes of the type +PF6- (M=Rh or Ir; L2=Ph2PQPPh2NR where Q=CH2, CH(CH3), 1,2-C6H4, and R=p-C6F4CN, C6H2F(NO2)2, and C6H3(NO2)2 or L=Ph2PN=C(H)Ph) were readily prepared by treating 2 with L2 and KPF6.The detection and chemical shift determination of the insensitive 103Rh nucleus was easily accomplished via 31P detected indirect two-dimensional 31P, 103Rh NMR spectroscopy.The 103Rh, 1H, and 31P NMR data are discussed.Key words: rhodium, iridium, phosphoranimine, iminophosphine, Rh NMR.
