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Yoshitaka Saga, Yuki Hirai, Kana Sadaoka, Megumi Isaji and Hitoshi Tamiaki Structure-Dependent Demetalation Kinetics of Chlorophyll a Analogs under Acidic Conditions Photochemistry and Photobiology 89

Version of Record online: 30 AUG 2012 | DOI: 10.1111/j.1751-1097.2012.01213.x

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Demetalation of chlorophyll (Chl) a and its analogs is an important reaction in oxygenic photosynthetic organisms, which produces the primary electron acceptors in the photosystem II and is crucial in the Chl degradation. We report demetalation kinetics of natural Chl a and four Chl a analogs, namely, DV-Chl a, 3-devinyl-3-ethyl-Chl a, 132-demethoxycarbonyl-Chl a and protochlorophyll a. The structure-dependent demetalation properties of Chl a analogs will be useful for understanding in vivo Chl demetalation reactions.

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