Photochemical processes in photosynthesis studied by advanced electron paramagnetic resonance techniques
W. Lubitz
Max-Planck-Institut für Strahlenchemie, Stiftstrasse
34-36, D-45470 Mülheim/Ruhr, Germany
Abstract: Various continuous-wave and pulse electron paramagnetic
resonance (EPR) and electron nuclear double resonance (ENDOR) experiments
performed on the radical species occurring in photosynthetic reaction
centers of plants and bacteria during light-induced charge separation
are reviewed here. Emphasis is placed on time-resolved experiments performed
on short-lived intermediate states such as radical pairs and triplet
states for which also hyperfine information can be obtained from pulse
ENDOR spectroscopy. Detailed insight into the electronic structure of
these intermediates and their interaction with the protein environment
is now becoming available.
* Lectures presented at the XIXth IUPAC Symposium on Photochemistry, Budapest, Hungary, 14�19 July 2002. Other presentations are published in this issue, pp.999�1090.
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