Conversion Systems on Molecular Assemblies

Molecules containing an ionic group and long alkyl chain(s) compose a molecular assembly such as a micell, a bilayer membrane, or a vesicle (liposome) (Fig. 4).19a) These assemblies bind reaction components by hydrophobic interaction, give a high 

The ionic field of micells increases the efficiency of photoinduced charge separation. Laser flash photolysis showed a longer lifetime of the e formed by irradiation of a donor molecule (D pyrene, perylene etc.) solubilized in anionic micells such as sodium lauryl sulfate (SDS) than in a non-micell systems 19b). This is why the e is repulsed by the anionic field at the micellar surface into the bulk solution (Eq. (10)). 

The acceptor in the bulk solution causes a more efficient charge separation to give D+ and A- than non-micellar systems (Eq. (11)). 

Ru(bpy)2 + containing long alkyl groups at the bpy ring (5 RuC12B2+) was solubilized into micells, where the Ru complex group is located at the interface. 

The irradiation of the micellar solution in the presence of dimethylaniline (DMA) which is also solubilized in the micell induced a charge separation to give RuC12B+ and DMA+ (Eq. (12)). 

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