R. R. Rakhimov, A. I. Semikopny, Ya. S. Lebedev, “Unexpected Influence of Viscosity on Intramolecular Spin Exchange in Nitroxide Biradicals”, Mendeleev Commun., 1992, Volume 2, Issue 1,Pages <nobr>2

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Unexpected Influence of Viscosity on Intramolecular Spin Exchange in Nitroxide Biradicals

R. R. Rakhimov^a, A. I. Semikopny^b, Ya. S. Lebedev^c

^a V.I. Nikitin Institute of Chemistry, Academy of Sciences of the Tajikistan, Dushanbe, Tajikistan
^b Institute of Chemistry, Tadzhik Academy of Sciences
^c N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russian Federation

Abstract: The spin exchange dynamics and the rotational mobility of rigid-frame nitroxide biradicals have been studied by EPR; despite the intramolecular character of the exchange, its rate correlates with molecular mobility, being damped in viscous media, thus proving that even the simplest intramolecular reactions are controlled by molecular dynamics.

Language: English

DOI: 10.1070/MC1992v002n01ABEH000093