FLUORESCENCE QUENCHING OF 5,10,15,20‐TETRA(p‐TOLYL)PORPHINE and ITS ZINC COMPLEX BY QUINONES. CHARGE‐TRANSFER INTERACTION and TRANSIENT EFFECT

Sunao Yamada, Toshinori Sato, Koji Kano, Teiichiro Ogawa

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    17 Citations (Scopus)

    Abstract

    The fluorescent states of tetratolylporphyrin and its zinc complex in acetone were quenched by various kinds of quinones. The transient effect for the collisional quenching caused the upward deviation of the plots of the inversed fluorescence intensities of the porphyrins vs the quinone concentrations. A charge‐transfer interaction between the porphyrins in the singlet excited states and the quinones was suggested from the dependence of the quenching rate constants on the electron affinities of the quinones.

    Original languageEnglish
    Pages (from-to)257-262
    Number of pages6
    JournalPhotochemistry and Photobiology
    Volume37
    Issue number3
    DOIs
    Publication statusPublished - Mar 1983

    All Science Journal Classification (ASJC) codes

    • Biochemistry
    • Physical and Theoretical Chemistry

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