Journal of Physical Chemistry p. 5401 - 5405 (1991)
Update date:2022-08-17
Topics:
Okutsu, Tetsuo
Yano, Kouki
Kawai, Akio
Obi, Kinichi
Dual spin polarization of triplet benzil was investigated by the time-resolved ESR technique.Spin polarization of triplet benzil showed only absorption in rigid matrices at 77 K.However, the phase of CIDEP signals caused by the triplet mechanism showed absorption or emission depending on the concentration of quenchers at room temperature.Both polarizations were generated through a one-photon absorption process.Absorptive polarized radicals were produced from free benzil, whereas emissive polarized radicals were produced from benzil/quencher complex.
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(1943)
