Self-aggregation of Synthetic Zinc Hydroxylated Chlorophyll Derivatives inside Aqueous Micelles: Neighboring Effect of AdditionalO-Functional Groups

Zinc methyl bacteriopheophorbide-d possessing a 1-hydroxyethyl group at the 3-position self-aggregated in an aqueous Triton X-100 solution to afford a red-shifted Qy band, but the substitution of hydroxy and acetoxy groups at its 32-position completely disturbed their self-aggregation. Their neighboring groups intramolecularly interacted with the 31-hydroxy group to prevent them from producing chlorosomal J-aggregates.