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SEPARATION OF PHOTOINDUCED CHLOROPHYLL‐a CATION AND p‐TETRABROMOBENZOQUINONE ANION ELECTRON SPIN RESONANCE LINES AT 35 GHz IN FROZEN VESICLE SOLUTIONS
Author(s) -
Hiff Thomas,
Kevan Larry
Publication year - 1988
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.1751-1097.1988.tb02861.x
Subject(s) - photoionization , chemistry , electron paramagnetic resonance , ion , photochemistry , electron , radical ion , scavenger , analytical chemistry (journal) , resonance (particle physics) , nuclear magnetic resonance , atomic physics , radical , ionization , chromatography , physics , organic chemistry , quantum mechanics
Abstract— The photoionization products of chlorophyll‐a with p‐tetrabromobenzoquinone as an electron scavenger in rapidly frozen phospholipid vesicles have been detected by electron spin resonance. The asymmetric line resulting from the overlap of the chlorophyll‐fl cation radical and the scavenger anion radical at 9 GHz (X band) has been resolved into two symmetric lines with different g values at 35 GHz (Q band).