Energy and electron transfer reaction in porphyrin self-assembly.
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Accession number;04A0258592
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| Title;Energy and electron transfer reaction in porphyrin self-assembly. |
| Author;
MIYAMOTO KOJI
(Kyoto Inst. Technol., Faculty of Textile Sci., JPN)
KURODA YASUHISA
(Kyoto Inst. Technol., Faculty of Textile Sci., JPN)
SASAKI KEN
(Kyoto Inst. Technol., Faculty of Textile Sci., JPN)
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Journal Title;Abstracts. Symposium on Biofunctional Chemistry
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Journal Code:L0836A
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ISSN:
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VOL.18th;NO.;PAGE.18-19(2003)
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| Figure&Table&Reference;FIG.2, TBL.1, REF.2 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;[meso-Tetrakis(2-carboxy-4-nonylphenyl)porphyrin Zn(II) complex dimerizied through intermolecular hydrogen bonds between two carboxylic acid groups, and specifically bound pyrazine. Based on the pyazine recognition, we synthesized self-organaized nonameric porphyrin assemblies where the antenna porphyrins were connected with acceptor porphyrin by various alkyl chain length. The correlation of energy transfer from the antenna porphyrins to the central acceptor with the length of the alkyl chain is investigated by fluorescence spectra and fluorescence life-time measurements. We found that the rate of energy transfer reaction indeed proportionate to the term of r-6, where r is the theoretically estimated distance between the donor and acceptor porphyrins. Furthermore, we designed new porphyrin assembly composed three pyrazine groups as antenna porphyrin and one quinone group as electron acceptor. In this report we will discuss energy transfer efficiency by difference of alkyl chain length and electron transfer reaction to the quinone. (author abst.) |
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