Опубликовано
1997-02-00
На SciPeople2011-04-21
ЖурналRadiation Physics and Chemistry
Determination of a fraction of spin-correlated radical ion pairs in irradiated alkanes by quantum oscillation technique
O. M. Usov, V. M. Grigoryants, B. M. Tadjikov, Yu. N. Molin
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Олег Усов
Аннотация
Amplitudes of quantum oscillations observed in the recombination fluorescence of the (diphenylsulfide-d10)+/(p-terphenyll-d14)− radical ion pairs in alkane solutions have been used to estimate a fraction of spin-correlated singlet pairs Θ in the radiation track. Θ values of 0.36 – 0.54 for the solvent series studied were found. Values for a fraction of singlet recombinations fs (0.52–0.66), calculated from Θ values, are in satisfactory agreement with those available from literature. It has been observed that Θ and fs values decrease with increasing solvent viscosity (from n-hexane to cis-decalin).
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