Photoisomerizable DNA Ligands. Photoisomerization of Anthrylvinylpyridinium Derivatives

• Autorzy: Juskowiak B. , Chudak M. , Takagi N. , Takagi M.
• Języki publikacji: EN

Abstrakty

EN

Two potential DNA intercalators capable of cis_trans isomerization, 9-[2-(N-methylpyridinium- 4-yl)vinyl]anthracene (1) and 9,10-bis [2-(N-methylpyridinium-4-yl)vinyl] anthracene (2), have been prepared, characterized and their spectral and photoisomerization behavior have been studied. Both ligands exhibit low fluorescence quantum yields in aqueous solution and substantial enhancement of emission in the presence of DNA. Two-way isomerization was observed for 1, while trans_cis process appeared to be inefficient for ligand 2. An intramolecular charge transfer excited state was suggested to explain the differences in spectral behavior and photoisomerization of ligands.

Słowa kluczowe

EN

anthrylvinylpyridinium ligands; DNA; fluorescence; intercalator; photoisomerization

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2002
• Tom: Vol. 76 / nr 1
• Strony: 83--93
• Opis fizyczny: Bibliogr. 31 poz., rys.

Twórcy

autor

Juskowiak B.

• Department of Analytical Chemistry, Faculty of Chemistry, A. Mickiewicz University, 60-780 Poznań, Poland

autor

Chudak M.

• Department of Analytical Chemistry, Faculty of Chemistry, A. Mickiewicz University, 60-780 Poznań, Poland

autor

Takagi N.

• Department of Applied Chemistry, Faculty o/Engineering, Kyushu Unh/ersity, Fukuoka 812-8581, Japan

autor

Takagi M.

• Department of Applied Chemistry, Faculty o/Engineering, Kyushu Unh/ersity, Fukuoka 812-8581, Japan

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