QUANTUM YIELD OF SINGLET OXYGEN PRODUCTION BY XANTHENE DERIVATIVES
- 1 March 1983
- journal article
- research article
- Published by Wiley in Photochemistry and Photobiology
- Vol. 37 (3) , 271-278
- https://doi.org/10.1111/j.1751-1097.1983.tb04472.x
Abstract
The singlet oxygen quantum yield (ϕ1o2) of 11 purified fluorescein derivatives was determined by reaction with singlet oxygen acceptors in aqueous and ethanolic solutions; in both solvents ϕ1o2 was enhanced with increasing halogenation. Tryptophan and 2,2,6,6‐tetramethylpiperidone were found to be unadapted for the determination of ϕ1o2, in our systems; however, the use of 9.10‐dipropionic anthracene acid andp‐nitrosodimethylaniline in conjunction with imidazole derivatives was suitable for 1O2 detection in water. Both methods lead to results in excellent agreement. As in ethanol. ϕ1o2, was equal to the triplet state quantum yield (ϕT), the comparison between the two solvents showed that ϕT in water was greater than in ethanol. The comparison between our values obtained with polychromatic light with published data obtained with monochromatic light suggests that the triplet quantum yield of fluorescein derivatives is wavelength independent.This publication has 39 references indexed in Scilit:
- A simple and convenient method of measuring the number of photons absorbed by a solution irradiated with polychromatic lightJournal of Photochemistry, 1982
- Triplet quantum yield determination by photosensitized oxygenation in the presence of heavy atom additives: Rhodamine B in methanolTetrahedron Letters, 1981
- Picosecond fluorescence studies of xanthene dyesJournal of the American Chemical Society, 1977
- Factors affecting dye-sensitised photo-oxygenation reactionsJournal of the Chemical Society, Perkin Transactions 2, 1977
- Physical and chemical properties of singlet molecular oxygenChemical Reviews, 1971
- Olefin Oxidations with Excited Singlet Molecular OxygenJournal of the American Chemical Society, 1964
- Irreversible Photobleaching of the Solutions of Fluorescent Dyes. VI. Photobleaching of Uranin in Alkaline SolutionsBulletin of the Chemical Society of Japan, 1958
- Irreversible Photobleaching of the Solution of Fluorescent Dyes. V. Photobleaching of ErythrosinBulletin of the Chemical Society of Japan, 1958
- Irreversible Photobleaching of the Solution of Fluorescent Dyes. I. Kinetic Studies on the Primary ProcessBulletin of the Chemical Society of Japan, 1955
- Collisional Perturbation of Spin-Orbital Coupling and the Mechanism of Fluorescence Quenching. A Visual Demonstration of the PerturbationThe Journal of Chemical Physics, 1952