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ON THE LUMINESCENCE OF ESTROGENS
Author(s) -
Weinreb A.,
Werner A.
Publication year - 1974
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1974.tb06582.x
Subject(s) - chromophore , phosphorescence , chemistry , luminescence , fluorescence , photochemistry , conjugated system , excitation , energy transfer , steroid , materials science , organic chemistry , hormone , biochemistry , optics , chemical physics , physics , optoelectronics , quantum mechanics , polymer
—The absorption, fluorescence, and phosphorescence of a series of estrogens is reported. The behavior of estrogens without a keto‐group is compared with that of the isolated phenylic, phenolic and naphtholic chromophores. In the latter two, attachment to the steroidal frame is inconsequential as regards their luminescent behavior. In all keto‐estrogens with the exception of equilenin there is a very strong transfer of excitation energy from the A ring chromophore to the keto group. The fluorescence of 6‐keto‐estradiol, which has a conjugated aromatic carbonyl chromophore, is apparently due to the rigidity of the steroid frame and exhibits a rather perculiar excitation spectrum.