TCB Publications - Abstract
Robert Bittl and Klaus Schulten. Biradical spin dynamics with distance-dependent exchange interaction and electron transfer efficiency. Chemical Physics Letters, 173:387-392, 1990.
(n=8,9,10) are described for a model which assumes the same A-D distance dependence for a "through space" exchange interaction and for the efficiency of electron back-transfer to the singlet ground state
and to a triplet excited state
. The model is independent of the length em n of the polymethylene chain and accounts well for the three types of observation on the biradicals: the mono-exponential character of the biradical decay, the life time associated with this decay, and the magnetic field dependence of the yield of the triplet excited state.
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