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PROTONATED SCHIFFS BASE CHLOROPHYLL: A MODEL FOR P700?
Author(s) -
Maggiora Linda L.,
Maggiora Gerald M.
Publication year - 1984
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.1751-1097.1984.tb08870.x
Subject(s) - p700 , bathochromic shift , protonation , chemistry , photochemistry , photosystem i , chlorophyll , base (topology) , chlorophyll a , photosynthesis , photosystem ii , fluorescence , organic chemistry , biochemistry , optics , physics , ion , mathematical analysis , mathematics
Abstract— A Schiff's base of the Ni(II) analog of pyrochlorophyll a (PChl a) has been synthesized which exhibits a reversible bathochromic shift relative to Ni‐PChl a of 504 cm ‐1 . The shift approaches that observed between Chi a and P700, the photoactive pigment of photosystem I in plants, and suggests that the protonated Schiff s base may be an appropriate model for P700.