Bulletin of the Academy of Sciences of the USSR Division of Chemical Science p. 2456 - 2459 (1989)
Update date:2022-08-17
Topics:
Skakovskii, E. D.
Tychinskaya, L. Yu.
Rykov, S. V.
Yankelevich, A. Z.
Polarization of nuclei in both the products of the reactions and in the CHD2OD proton without polarization in the CH3OH protons is observed in irradiation of a solution of acetone in CD3OD in the presence of CHD2OD and CH3OH.Polarization of the protons of the products is strongly dependent on the temperature of the solution and arises in radical pairs; polarization of the proton of partially deuterated methyl alcohol is due to a mechanism of optical nuclear polarization.It was hypothesized that the isotope effect is due to a difference in proton and electron relaxation and to a difference in the rates of cross-relaxation transitions.
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