73979-37-0Relevant academic research and scientific papers
Reduction-Oxidation Properties of Organotransition-metal Complexes. Part 8. Formation and Reactivity of the Radical Cations (1+), and the Mechanism of the Oxidative Elimination Reaction of with Halogens
Baker, Paul K.,Connelly, Neil G.,Jones, Brian M. R.,Maher, John P.,Somers, Karen R.
, p. 579 - 585 (1980)
Cyclic-voltammetric studies in CH2Cl2 show that 2=Ph2PCH2CH2PPh2 (dppe) or Ph2PCH2PPh2 (dppm)> undergoes one-electron oxidation to the radical cation (1+) (2) which may be chemically generated from (1) using silver(I) salts or .The complex (2; L=PPh3) reacts with halogens to give diamagnetic (3) which yields 4-n(PPh3)n> (4; X=I, n=1; X=Br, n=1 and 2; X=Cl, n=2) with X(1-).Halide ions react directly with (2; L=PPh3) to give mixtures of (1; L=PPh3) and (4) via the paramagnetic intermediate (5).A mechanism is proposed for the oxidative elimination reaction of (1) with halogens; the reactions of (2), and i.r. stopped-flow kinetic studies, implicate (2) and (5) as redox-active intermediates.
