| Abstract
| - Water-soluble oligo(ethylene glycolated) derivatives of two-photon absorptive diphenylaminofluorenocarbonyl-methano[60]fullerene, denoted as C60(>DPAF-EG6), were synthesized with their molecular self-assembly characteristics in H2O studied. The formation of nano- to submicron-sized spherical hollowvesicles with a shell width of 15−20 nm was observed by transmission electron microscopy (TEM)micrographs. This shell width fits approximately with the length of a disordered bilayer-like molecularpacking of C60(>DPAF-EG6), arising from strong intermolecular hydrophobic interactions of fullerenecages. Photoinduced intramolecular charge separation followed by charge recombination on the nanosecondtime scale, from the DPAF moiety to the C60 cage in the vesicle structure, was detected via transientspectroscopic measurements.
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