84581-10-2Relevant academic research and scientific papers
Olefin complexes of nickel(0). 4. Equilibria in solutions containing P(O-o-tolyl)3 and cyanoolefins
Tolman, Chadwick A.
, p. 614 - 621 (2008/10/08)
31P and 1H NMR and IR spectroscopy and spectrophotometry are used to demonstrate the presence of both olefin and nitrile complexes in solutions containing cyanoolefins, P(O-o-tol)3 (tol = tolyl), and nickel(0). Coordination of the olefinic double bond is favored by a terminal location and by conjugation with the nitrile group. Coordination of the nitrile nitrogen is favored by conjugation and by increased concentrations of free P(O-o-tol)3. A number of equilibrium constants and electronic spectra in benzene at 25 °C are reported and discussed in terms of the structures of the cyanoolefins.
