Capped Fullerenes: Stabilization of Water-Soluble Fullerene Monomers As Studied by Flash Photolysis and Pulse Radiolysis

摘要: Functionalization of C60 with hydrophilic groups promotes the water solubility fullerene core which leads in aqueous solution to irreversible formation clusters. Capping surface water-soluble derivatives surfactants (cetyltrimethylammonium chloride or Triton X-100) was found exclude clusters and, turn, stabilize monomers. Flash photolytic and pulse radiolytic techniques were employed generated excited reduced states monomers 1−3. Fullerene aggregation have no significant effects on physicochemical properties related generation lifetime singlet state. Nanosecond studies processes following photoexcitation revealed noticeable differences between monomeric colloidal 1−3 for absorption maximum corresponding *T1 → *Tn absorptions. Clustering invoke also remarkable changes decay fullerene'...