Coaggregate of amphiphilic zinc chlorins with synthetic surfactants in an aqueous medium to an artificial supramolecular light-harvesting system.
Aqueous assemblies of zinc chlorins possessing a nonionic (oligo)oxyethylene, a cationic quaternary ammonium or an anionic sulfonate group were prepared in the presence of a synthetic surfactant. The nonionic zinc chlorin formed aggregates when admixed with a nonionic surfactant such as Triton X-100 to give a highly ordered oligomeric J-aggregate similarly as natural bacteriochlorophyll-c or d does in a chlorosome. In addition, the coassemblies of the cationic zinc chlorin with an anionic surfactant and of the anionic zinc chlorin with a cationic surfactant gave large oligomers of these chlorophyllous pigments. The structures of hydrophilic groups in both the zinc chlorin and surfactant molecules controlled their aqueous coassemblies.
Miyatake
Tomohiro
T
Department of Materials Chemistry, Faculty of Science and Technology, Ryukoku University, Otsu, Shiga 520-2194, Japan. miyatake@rins.ryukoku.ac.jp
Tamiaki
Hitoshi
H
Fujiwara
Manabu
M
Matsushita
Takayuki
T
D017830:Octoxynol / Q000737:chemistry*; D011166:Porphyrins / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry*; D014867:Water
D011166:Porphyrins; D013501:Surface-Active Agents; D014867:Water; C006969:chlorin; D017830:Octoxynol