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

Research output: Contribution to journalArticle

16 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 - 1983 Mar

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry

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