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Application of spin-orbit-coupling induced magnetic field effects for probing the dynamics of photoinduced charge separation and recombination

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Steiner_1992_Application.pdf
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1992

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Haas, Werner
Wolff, Hans-Joachim
Bürßner, Dieter

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Journal of Chemical Sciences. 1992, 104(2), pp. 229-240. Available under: doi: 10.1007/BF02863367

Zusammenfassung

In this paper we present two examples demonstrating how magnetic field effects can be utilized for a quantitative exploration of mechanistic details of the behaviour of short-lived redox intermediates in photoelectron transfer reactions with excited triplet states. This magnetokinetic approach takes advantage of the spin memory present in the intermediates (exciplexes, correlated radical pairs) which controls the competition between spin-allowed formation of free redox products and spin-forbidden backward electron transfer regenerating the ground state reactants. In particular we demonstrate that the strong spin-orbit coupling exhibited by a heavy atom substituent or by heavy transition metal centers can be very useful for inducing and exploiting such diagnostic magnetic field effects.

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Fachgebiet (DDC)
540 Chemie

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Photoinduced electron transfer, triplet exciplexes, radical pairs, magnetic field effects, spin-orbit coupling, spin-forbidden processes

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ISO 690STEINER, Ulrich, Werner HAAS, Hans-Joachim WOLFF, Dieter BÜRSSNER, 1992. Application of spin-orbit-coupling induced magnetic field effects for probing the dynamics of photoinduced charge separation and recombination. In: Journal of Chemical Sciences. 1992, 104(2), pp. 229-240. Available under: doi: 10.1007/BF02863367
BibTex
@article{Steiner1992Appli-9911,
  year={1992},
  doi={10.1007/BF02863367},
  title={Application of spin-orbit-coupling induced magnetic field effects for probing the dynamics of photoinduced charge separation and recombination},
  number={2},
  volume={104},
  journal={Journal of Chemical Sciences},
  pages={229--240},
  author={Steiner, Ulrich and Haas, Werner and Wolff, Hans-Joachim and Bürßner, Dieter}
}
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