Synthesis and Self‐Aggregation of Chlorophyll‐ a Derivatives Possessing a Hydroxymethyl Group in the C20‐Substituent with Ethynylene and/or Phenylene Linkers

Autor: Takeo Nakano, Yuki Hashimoto, Hitoshi Tamiaki
Rok vydání: 2022
Předmět:
Zdroj: Photochemistry and Photobiology. 99:35-44
ISSN: 1751-1097
0031-8655
Popis: Chlorophyll(Chl)-a derivatives containing some rigid linkers in the C20 substituents, which were inserted between a hydroxymethyl group and the chlorin π-skeleton, were synthesized and their self-aggregation abilities were investigated. Measurements of electronic absorption, circular dichroism and infrared absorption spectra revealed that the zinc complex of a Chl-a derivative bearing a (p-ethynyl)benzyl alcoholic moiety at the C20-position gave its J-aggregates in an aqueous micellar solution through the hydrogen and coordination bonding. These results exhibited the potential of Chl-a derivatives bearing a hydroxyl group in the C20 substituents as the model compounds for chlorosomal light-harvesting antennas.
Databáze: OpenAIRE
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