V. F. Tarasov, E. G. Bagryanskaya, Yu. A. Grishin, R. Z. Sagdeev, A. L. Buchachenko, “Radio Induced <sup>12</sup>C/<sup>13</sup>C Magnetic Isotope Effect”, Mendeleev Commun., 1991, Volume 1, Issue 3,Pages <nobr>85–86</nobr>

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Mendeleev Commun., 1991 Volume 1, Issue 3, Pages 85–86 (Mi mendc5512)

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Radio Induced ¹²C/¹³C Magnetic Isotope Effect

V. F. Tarasov^a, E. G. Bagryanskaya^b, Yu. A. Grishin^b, R. Z. Sagdeev^c, A. L. Buchachenko^a

^a N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russian Federation
^b V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
^c International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation

Abstract: The separation of carbon isotopes ¹²C and ¹³C induced by magnetic electron–nuclear interaction in radical pairs is increased by selective microwave pumping at the frequency of EPR transitions in ¹³C-containing radicals; the pumping accelerates the triplet–singlet conversion of ¹³C radical pairs and therefore increases the nuclear spin selectivity of chemical reactions; this new effect has been called the radio induced magnetic isotope effect (RIMIE).

Language: English

DOI: 10.1070/MC1991v001n03ABEH000051

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