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PHOTO‐EXCITED TRIPLET STATE OF DIMERIC CHLOROPHYLL a IN 3‐METHYLPENTANE RIGID MATRIX AT 77 K STUDIED BY FLASH PHOTOLYSIS
Author(s) -
Hoshino M.,
Imamura M.,
Koike K.,
Kikuchi K.,
Kokubun H.
Publication year - 1983
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.1751-1097.1983.tb03872.x
Subject(s) - flash photolysis , chemistry , triplet state , excited state , photochemistry , monomer , chlorophyll , absorption spectroscopy , ground state , photodissociation , solvent , chlorophyll a , molecule , atomic physics , kinetics , organic chemistry , optics , physics , biochemistry , quantum mechanics , reaction rate constant , polymer
— Flash photolysis studies of dimeric and monomeric chlorophyll a were carried out at 77 K. The triplet‐triplet absorption spectrum of the dimeric chlorophyll a in 3‐methylpentane at 77 K is interpreted as a sum of the spectra of chlorophyll a in the ground and triplet states. The dimeric chlorophyll a in the triplet state is considered to have the half‐excited structure at 77 K without photodisaggregation owing to high viscosity of the solvent.