32056-49-8Relevant academic research and scientific papers
Paramagnetic Intermediates in Oxidative Coupling Reactions. Molecular Orbital Calculations as an Aid to Rational Organometallic Synthesis
McKinney, Ronald J.
, p. 603 - 604 (1980)
Oxidation of (η5-C5H5)Rh(PPh3)2 by silver ion results in coupling of cyclopentadienyl ligands to give fulvalene-dirhodium(II) complexes; semi-empirical MO calculations give insight into the reaction sequence and allow a rational extension to the coupling reaction of a co-ordinated allyl ligand to give a hexa-1,5-diene complex.
Dihydrido Olefin and Solvento Complexes of Iridium and the Mechanisms of Olefin Hydrogenation and Alkane Dehydrogenation
Crabtree, Robert H.,Demou, Peter C.,Eden, Don,Mihelcic, Jean M.,Parnell, Charles A.,et al.
, p. 6994 - 7001 (2007/10/02)
Tests for homogeneity are applied to the catalysts L2>A/CH2Cl2/H2 (cod-1,5-cyclooctadiene; A = BF4; L=PPh3, PMePh2) and their possible generality is discussed. L2>A (L=PPh3) reacts with H2 and S (S=solvent) to give the isolable complexes IrH2S2L2>A (1) in which the displacement order of the M-S groups is H2O ca.THF2L2>A (ol = C2H4, C3H8) and L2>A (ol = PhCH=CH2, C5H8, t-BuCH=CH2).Their role in hydrogenation is discussed in the light of stepwise catalytic 1H NMR studies at -80 to +25 deg C, in which they appear to be intermediates in catalysis.A catalytic cycle is proposed.Selectivity in competitive experiments is discussed.The rhodium analogues do no exhibit similar properties.
