Photo-induced intermolecular charge transfer in porphyrin complexes

Details Photo-induced intermolecular charge transfer in porphyrin complexes Photo-induced intermolecular charge transfer in porphyrin complexes

2000-01-06

arxiv.org/abs/physics/0001014v1

Exciton Processes in Condensed Matter, Editors: R. T. Williams and W. H. Yen, PV98-25, (The Electrochemical Society Proceeding

Physics

Chemical Physics

The deep analysis of this problem has been presented in Ph. D. thesis http://xxx.lanl.gov/abs/quant-ph/0001004

Scientific paper

Optical excitation of the sequential supermolecule H_2P-ZnP-Q induces an electron transfer from the free-base porphyrin (H_2P) to the quinone (Q) via the zinc porphyrin (ZnP). This process is modeled by equations of motion for the reduced density matrix which are solved numerically and approximately analytically. These two solutions agree very well in a great region of parameter space. It is shown that for the majority of solvents the electron transfer occurs with the superexchange mechanism.

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