Self-assembly of uncharged amphiphilic porphyrins and incorporation of C-60 fullerenes in water

초록

We synthesised an uncharged amphiphilic porphyrin, meso-tetrakis-(3,5-di-{2-[2-(2-methoxy-ethoxy)-ethoxy]-ethoxy}-phenyl)-porphyrin, and investigated the supramolecular self-assembly of the porphyrins and the incorporation of C-60 molecules into the assembly in aqueous solutions. Spectroscopic and dynamic light scattering studies on the assembly of the amphiphilic porphyrin support that the amphiphilic porphyrins are likely held together through enhanced - interactions by pronounced hydrophobic effects in aqueous solutions. It was also found that C-60 molecules are efficiently incorporated into the assembly. The fluorescence emitted from the porphyrin ring of the porphyrin/C-60 co-assembly in aqueous solution is largely quenched, implying the presence of strong electronic interactions between C-60 and porphyrin molecules in the supramolecular assembly. [GRAPHICS] .

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