Abstract
The formation of radical pairs (RP) in solid mixtures of 3,6-di-tert-butyl-o-quinones (Q) and 3,6-di-tert-butylpyrocatechol (QH2) under the action of shock-wave (SW) pulses was studied by ESR and IR spectroscopy. The radical pairs are formed only when a threshold value of SW power is achieved. The generation of RP is preceded by the formation of hydrogen-bonded associates QH2…Q upon intimate mixing and fine dispergation of the reagents in a SW field. The incorporation of the reagents into a polymeric matrix favors the formation of associates and stabilization of the pairs, which leads to a decrease in the SW power threshold.
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Deceased.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 1464–1467, August, 1997.
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Aleksandrov, A.I., Chenskaya, T.B., Prokof'ev, A.I. et al. Formation and stabilization of radical pairs in the quinone-pyrocatechol-polymer system. Russ Chem Bull 46, 1399–1402 (1997). https://doi.org/10.1007/BF02505674
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DOI: https://doi.org/10.1007/BF02505674