17 March 1989 Photophysical And Photochemical Properties Of Purpurins
Author Affiliations +
Proceedings Volume 0997, Advances in Photochemotherapy; (1989) https://doi.org/10.1117/12.960197
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States
The photochemical and photophysical properties of purpurins have been investigated. Photophysical measurements indicate that these sensitizers have high quantum yields of long lived triplet excited states which efficiently quench molecular oxygen, giving rise to singlet oxygen. Irradiation of purpurins in light leads to oxidative cleavage of the isocyclic ring to form the corresponding formyl chlorins. In aqueous solutions, it appears that this species then undergoes hydration with a corresponding blue shift in the absorption of band I in the visible spectrum.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alan R. Morgan, Alan R. Morgan, Greta M. Garbo, Greta M. Garbo, T. George Truscott, T. George Truscott, } "Photophysical And Photochemical Properties Of Purpurins", Proc. SPIE 0997, Advances in Photochemotherapy, (17 March 1989); doi: 10.1117/12.960197; https://doi.org/10.1117/12.960197

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