@article{Foll1990charg-9940,
  year={1990},
  title={Role of charge transfer and spin-orbit coupling in fluorescence quenching : a case study with oxonine and substituted benzenes},
  number={6},
  volume={94},
  issn={0022-3654},
  journal={Journal of Physical Chemistry},
  pages={2476--2487},
  author={Föll, Rudolf E. and Kramer, Horst E. A. and Steiner, Ulrich}
}

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    <dcterms:abstract xml:lang="eng">Fluorescence quenching of oxonine in methanol was investigated by means of a computerized dye laser flash spectrometer for the ∆G°et, dependence of the quenching rate constant (kq) and the efficiencies of induced dye triplet formation (ηT), reduced dye radical formation (ηR), and induced internal conversion. A total of 34 substituted benzenes including 20 monohalogenated benzenes, toluenes, and anisoles were used as quenchers spanning a range of -0.85 ≤ ∆G°et ≤ 1.4 eV for a possible photoelectron-transfer reaction with the dye singlet as electron acceptor. Induced internal conversion was the dominating channel in all cases. Free-radical formation was less than 2.0% throughout. Induced triplet formation was only detectable with heavy-atom-substituted quenchers and with ∆G°et ≥ -0.13 eV such that the free energy of the radical pair was not below the triplet energy of oxonine. In spite of a wide variation of kq the efficiency ηT was almost constant for a set of quenchers with the same halogen substituent.</dcterms:abstract>
    <dcterms:title>Role of charge transfer and spin-orbit coupling in fluorescence quenching : a case study with oxonine and substituted benzenes</dcterms:title>
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    <dc:contributor>Kramer, Horst E. A.</dc:contributor>
    <dcterms:bibliographicCitation>First publ. in: Journal of Physical Chemistry 94 (1990), 6, pp. 2476-2487</dcterms:bibliographicCitation>
    <dc:contributor>Steiner, Ulrich</dc:contributor>
    <dc:contributor>Föll, Rudolf E.</dc:contributor>
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    <dc:creator>Föll, Rudolf E.</dc:creator>
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    <dc:creator>Kramer, Horst E. A.</dc:creator>
    <dc:creator>Steiner, Ulrich</dc:creator>
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