SINGLET-TRIPLET ANNIHILATION IN CHLORORHYLL-a
Creators:Menzel, E. R.
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Publisher:Ohio State University
Fluorescence quenching in chlorophyll-a induced by radiationless intermolecular singlet-triplet energy transfer is reported. A two-laser excitation procedure is employed to study this quenching. The method complements fluorescence spectroscopy for measurement of fast intramolecular relaxation processes. The observation of singlet-triplet Annihilation suggests the possibility of a central role of a higher triplet state of chlorophyll-a in photosynthesis.
Author Institution: Department of Chemistry, University of Kentucky
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