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LOW‐TEMPERATURE FLUORESCENCE SPECTRA OF CHLOROPHYLL a SOLUTIONS
Author(s) -
Kaplanová M.,
Vacek K.
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.tb06589.x
Subject(s) - fluorescence , spectral line , chemistry , analytical chemistry (journal) , chlorophyll , chlorophyll a , chlorophyll fluorescence , methanol , emission spectrum , ethanol , optics , chromatography , physics , biochemistry , organic chemistry , astronomy
Fluorescence and fluorescence polarization spectra of chlorophyll a dissolved in ethanol, n ‐propanol, EM (ethanol‐methanol, 4:1) and EPE (ether, n ‐pentane, ethanol, 5:5:2) were measured at 77 K. An emission band (‘shoulder’) between the two usual fluorescence bands appears in such spectra of dilute solutions (concentration ˜ 10 ‐5 M ) of chlorophyll a (except in EPE). The position, intensity and half‐width of this band were calculated using a computer. The correlation between electronic transitions of chlorophyll a and these emission bands is discussed.