Investigation of physical triplet quenching by electron donors

Steiner, Ulrich; Winter, Gerhard; Kramer, Horst E. A.

Investigation of physical triplet quenching by electron donors

Files

Investigation_of_physical_triplet_quenching_by_electron_donors.pdf(1.8 MB)

Date

1977

Authors

Steiner, Ulrich

Winter, Gerhard

Kramer, Horst E. A.

Publication type

Journal article

Published in

Journal of Physical Chemistry ; 81 (1977), 11. - pp. 1104-1110. - ISSN 0022-3654. - eISSN 1541-5740

Abstract

Absolute radical yields, as determined by flash spectroscopy, are reported for the reaction of the thionine triplet 3 TH+ and its protonated form 3 TH 2 2+ with a variety of electron donors in methanolic solution. The yields are extrapolated to infinite donor concentrations. Two methods of obtaining absolute yields are described. The different yields with different donors are due to partial physical quenching of the triplets in the electron transfer reaction. The results are discussed in terms of different models, capable of explaining bimolecular intersystem crossing processes. A triplet exciplex as an intermediate in the electron transfer reaction is favored.

Subject (DDC)

540 Chemistry

Cite This

ISO 690

STEINER, Ulrich, Gerhard WINTER, Horst E. A. KRAMER, 1977. Investigation of physical triplet quenching by electron donors. In: Journal of Physical Chemistry. 81(11), pp. 1104-1110. ISSN 0022-3654. eISSN 1541-5740. Available under: doi: 10.1021/j100526a016

BibTex

@article{Steiner1977Inves-9638,
  year={1977},
  doi={10.1021/j100526a016},
  title={Investigation of physical triplet quenching by electron donors},
  number={11},
  volume={81},
  issn={0022-3654},
  journal={Journal of Physical Chemistry},
  pages={1104--1110},
  author={Steiner, Ulrich and Winter, Gerhard and Kramer, Horst E. A.}
}

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