Photoinduced charge separation and charge recombination of fullerene bearing dendritic poly(amidoamine) with carboxylates at the terminal in aqueous media

Atula S.D. Sandanayaka; Huimin Zhang; Yutaka Takaguchi; Yuuki Sako; Mitsuhiro Tamura; Yasuyuki Araki; Osamu Ito

doi:10.1039/b508793g

Photoinduced charge separation and charge recombination of fullerene bearing dendritic poly(amidoamine) with carboxylates at the terminal in aqueous media

Atula S.D. Sandanayaka, Huimin Zhang, Yutaka Takaguchi, Yuuki Sako, Mitsuhiro Tamura, Yasuyuki Araki, Osamu Ito

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Photoinduced charge separation of fullerodendrimers with carboxylates at terminal sites (C₆₀∼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 C ₆₀, generating C₆₀^.-∼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.

Original language	English
Pages (from-to)	5160-5162
Number of pages	3
Journal	Chemical Communications
Issue number	41
DOIs	https://doi.org/10.1039/b508793g
Publication status	Published - Nov 7 2005

ASJC Scopus subject areas

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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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∼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 C 60, generating C60.-∼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.",

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AU - Sandanayaka, Atula S.D.

AU - Zhang, Huimin

AU - Takaguchi, Yutaka

AU - Sako, Yuuki

AU - Tamura, Mitsuhiro

AU - Araki, Yasuyuki

AU - Ito, Osamu

PY - 2005/11/7

Y1 - 2005/11/7

N2 - Photoinduced charge separation of fullerodendrimers with carboxylates at terminal sites (C60∼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 C 60, generating C60.-∼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.

AB - Photoinduced charge separation of fullerodendrimers with carboxylates at terminal sites (C60∼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 C 60, generating C60.-∼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.

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JO - Chemical Communications

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Photoinduced charge separation and charge recombination of fullerene bearing dendritic poly(amidoamine) with carboxylates at the terminal in aqueous media

Abstract

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