Bulletin of the Chemical Society of Japan p. 1 - 7 (1984)
Update date:2022-08-03
Topics:
Nishimura
Motoyama
The rates of reaction of Leucocrystal Violet (LCV) with chloranil (CA) and tetracyanoethylene (TCNE) were measured, and the kinetic isotope and pressure effects were examined. In the LCV-CA system, a very large isotope effect was observed, while in the LCV-TCNE system, it was not so large (k//H/k//D equals 5-6) suggesting the tunnel effect is not substantial. For both systems, the formation of a CT complex in equilibrium with the reactants was observed at low temperatures ( less than minus 50 degree C). From the rate law, the isotope effect, the electronic and ESR spectra observed during the reaction, and their time dependence, possible reaction processes are proposed.
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