Chemistry Letters, Vol.34, No.10, 1344-1345, 2005
Self-aggregation of synthetic zinc 3-hydroxymethyl-purpurin-18 and N-hexylimide methyl esters in an aqueous solution as models of green photosynthetic bacterial chlorosomes
Zinc 3(1)-hydroxy-13(1)-oxo-chlorins possessing a six-membered exo-ring attached at the 13- and 15-positions were prepared by modifying purpurin-18. These synthetic anhydride and imide self-aggregated in an aqueous THF solution to give large oligomers (J-aggregates) similarly with the corresponding natural and artificial chlorophylls possessing a five-membered E-ring.