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Accession number;02A0304371
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| Title;Self-organization of large-scale porphyrin assembly and analyses of their functionalities. |
| Author;
KURODA YASUHISA
(Kyoto Inst. of Technol., Fac. of Text. Sci.)
SUGO KENJI
(Kyoto Inst. of Technol., Fac. of Text. Sci.)
SASAKI KEN
(Kyoto Inst. of Technol., Fac. of Text. Sci.)
MURAKAMI MASATAKA
(Osaka Univ., Grad. Sch.)
MIYASAKA HIROSHI
(Osaka Univ., Grad. Sch.)
ITAYA AKIRA
(Kyoto Inst. of Technol., Fac. of Text. Sci.)
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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.16th;NO.;PAGE.30-31(2001)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;[Meso-Tetrakis(2-carboxy-4-nonylphenyl)porphyrinato] zinc(II) is spontaneously formed a face-to-face type dimer by using four hydrogen bond pairs in organic solvents. In its cavity, one pyrazine moiety is incorporated specifically. We prepared porphyrins having many pyrazine groups through various types of linkers as templates molecules. A complexation between the synthesized porphyrin and [Meso-Tetrakis(2-carboxy-4-nonylphenyl)porphyrinato] zinc(II) dimer (1) was examined by UV-vis spectroscopic titration in dichloromethane. The titration curve obtained from absorption change at 566nm shows a sharp bend at concentration ratio of 1/template=4/1. It was found that expected porphyrin assembly was constructed. Also, The fluorescence spectra of the 1:4 assembly are measured by excitation at 564nm. The result is indicated that 1200-1800% increase of emission of the template molecule. The result demonstrates the antenna effect of peripheral eight zinc porphyrins. (author abst.) |
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