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Chiral Self-assembly of Synthetic Zinc Protobacteriochlorophyll-d Derivatives

  • Hitoshi Tamiaki
  • Hajime Sumi
Conference paper

Abstract

Zinc 3-hydroxymethyl-13-carbonylporphyrins possessing a chiral citronellyl group at the 17-propionate were prepared by modifying easily available chlorophyll-a as model compounds of natural chlorosomal chlorophylls. The synthetic porphyrins self-aggregated inside an aqueous micelle to give large oligomers, similar to chlorosomal J-aggregates. The supramolecules showed intense circular dichroism bands due to the chiral exciton coupling among the porphyrin π-systems. The induced chirality was ascribable to intermolecular interaction between the chiral peripheral substituent and the achiral porphyrin core.

Keywords

Chlorophyll chlorosome green photosynthetic bacteria light-harvesting antenna porphyrin self-aggregate 

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References

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Copyright information

© Springer Science + Business Media, B.V. 2008

Authors and Affiliations

  • Hitoshi Tamiaki
    • 1
  • Hajime Sumi
    • 1
  1. 1.Department of Bioscience and Biotechnology, Faculty of Science and EngineeringRitsumeikan UniversityKusatsuJapan

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