title: Photoinduced charge separation and charge recombination of fullerene bearing dendritic poly(amidoamine) with carboxylates at the terminal in aqueous media.
abstract: Photoinduced charge separation of fullerodendrimers with carboxylates at terminal sites (C60 approximately COO-) has been found in aqueous media. Time-resolved transient absorption and fluorescence measurements of the fullerodendrimers demonstrated that charge separation takes place from the terminal carboxylate anion to the central excited singlet state of C60, generating C60*- approximately COO* with high quantum efficiency in aqueous solution. In the presence of viologen dication and a sacrificial donor, the persistent viologen radical cation was generated.
authors.affiliation: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Sendai, 980-8577, Japan.
authors.forename: Atula S D
authors.initials: AS
authors.lastname: Sandanayaka
authors.forename: Huimin
authors.initials: H
authors.lastname: Zhang
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Takaguchi
authors.forename: Yuuki
authors.initials: Y
authors.lastname: Sako
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Tamura
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Araki
authors.forename: Osamu
authors.initials: O
authors.lastname: Ito
mesh_terms: D002264:Carboxylic Acids / Q000737:chemistry*; D050091:Dendrimers / Q000737:chemistry*; D037741:Fullerenes / Q000737:chemistry*; D015394:Molecular Structure; D010777:Photochemistry; D011073:Polyamines / Q000737:chemistry*; D013057:Spectrum Analysis; D014867:Water / Q000737:chemistry
chemical_list: D002264:Carboxylic Acids; D050091:Dendrimers; D037741:Fullerenes; D011073:Polyamines; D014867:Water