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

Literature Information

Publication Date 2005-09-22
DOI 10.1039/B508793G
Impact Factor 6.222
Authors

Yutaka Takaguchi, Yuuki Sako, Mitsuhiro Tamura


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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 C60, 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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