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Time-resolved CIDEP study of the photogenerated camphorquinone radical anion: a case of dual singlet and triplet precursors

Journal Article · · J. Phys. Chem.; (United States)
DOI:https://doi.org/10.1021/j100283a002· OSTI ID:6952120

Photoreduction of camphorquinone in 2-propanol produced electron spin polarized camphorquinone radical anions. The time-resolved electron spin resonance spectra of the spin-polarized radical anions provided the first evidence of dual singlet and triplet precursors in the CIDEP phenomenon. With the results from fluorescence quenching experiments, the time dependence of the CIDEP spectra can be accounted for qualitatively by the changes of the relative contributions to the polarization among the singlet pair, F and triplet pairs, and the triplet mechanisms.

Research Organization:
Queen's Univ., Kingston, Ontario
OSTI ID:
6952120
Journal Information:
J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:25; ISSN JPCHA
Country of Publication:
United States
Language:
English