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Thionine triplet relaxation in pyridine : a completely time-resolved förster cycle

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Thionine_triplet_relaxation_in_pyridine.pdf
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1985

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Eipper, Hartmut
Abdel-Kader, Mahmoud H.
Kramer, Horst E. A.

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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-49168
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https://doi.org/10.1016/0047-2670(85)85045-0
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Attribution-NonCommercial-NoDerivs 2.0 Generic

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Published

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Journal of Photochemistry. 1985, 28(3), pp. 433-441. ISSN 0047-2670. Available under: doi: 10.1016/0047-2670(85)85045-0

Zusammenfassung

The deactivation pathway of the thionine triplet (3 TH +) in pyridine was investigated using microsecond laser flash spectroscopy. It was found that the electronic relaxation of the triplet 3 TH + occurs via protolytic dissociation to the triplet 3 T which, after radiationless decay to the ground state T, is reprotonated to TH +. The unique feature of this deactivation pathway is that is represents a Förster cycle where all steps can be conveniently followed by flash spectroscopy in the microsecond time regime. The energy of the triplet state 3 T was estimated to be 150 ± 6 kJ mol -1.

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540 Chemie

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ISO 690EIPPER, Hartmut, Mahmoud H. ABDEL-KADER, Horst E. A. KRAMER, Ulrich STEINER, 1985. Thionine triplet relaxation in pyridine : a completely time-resolved förster cycle. In: Journal of Photochemistry. 1985, 28(3), pp. 433-441. ISSN 0047-2670. Available under: doi: 10.1016/0047-2670(85)85045-0
BibTex
@article{Eipper1985Thion-9536,
  year={1985},
  doi={10.1016/0047-2670(85)85045-0},
  title={Thionine triplet relaxation in pyridine : a completely time-resolved förster cycle},
  number={3},
  volume={28},
  issn={0047-2670},
  journal={Journal of Photochemistry},
  pages={433--441},
  author={Eipper, Hartmut and Abdel-Kader, Mahmoud H. and Kramer, Horst E. A. and Steiner, Ulrich}
}
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