Intramolecular electron transfer rates for ion formation in bridged donor/acceptor systems have been determined using fluorescence lifetime measurements. The data show a weak dependence of the rate on the donor/acceptor distance as well as a dependence on the electronic structure of the spacer. Thes
Dispersion relations for electron and hole transfer in donor—bridge—acceptor systems
✍ Scribed by Alexei A. Stuchebrukhov
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 591 KB
- Volume
- 225
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Simple dispersion relations are derived which allow for the separation of the contributions of direct electron transfer and hole transfer to the total matrix element between donor and acceptor states in donor-bridge-acceptor charge transfer systems. The proposed relations are based on the calculation of the total matrix element for complex tunneling energies and do not assume diagonalixation of the bridge orbitals. A numerical procedure to perform such calculations for proteins and other large electron transfer systems is described.
📜 SIMILAR VOLUMES
Donor-acceptor compounds containing a phenylenediamine electron donor and a naphthalene, a cyanobenzene, or a cyanonaphthalene acceptor were studied. The two chromophores are connected by three different bridging units, consisting of CH 2 groups linked to a semiflexible piperidine or piperazine ring