Quantum dynamics of electron-transfer reactions: photoinduced intermolecular electron transfer in a porphyrin–quinone complex

Dynamics of Bimolecular Photoinduced Electron-Transfer Reactions

From the accumulated results of several research groups over the last 25 years, it is clear that photoinduced electron-transfer reactions have significantly broadened the scope of organic photochemistry.1 The fundamental mechanistic principle is that when quenching of an excited state via electron transfer is sufficiently exothermic, the reaction occurs at or close to the diffusion-controlled l...

Intra- vs intermolecular photoinduced electron transfer reactions of a macrocyclic donor-acceptor dyad.

The synthesis, structural characterization, and photophysical behavior of a 14-membered tetraazamacrocycle with pendant 4-dimethylaminobenzyl (DMAB) and 9-anthracenylmethyl groups is reported (L3, 6-((9-anthracenylmethyl)amino)-trans-6,13-dimethyl-13-((4-dimethylaminobenzyl)amino)-1,4,8,11-tetraazacyclotetradecane). In its free base form, this compound displays rapid intramolecular photoinduced...

Nonequilibrium photoinduced electron transfer

Dynamics of reversible electron transfer reactions

The dynamics of reversible electron transfer reactions in Debye solvents are studied by employing two coupled diffusion-reaction equations with the rate constants depending on the reaction coordinate. The equations are solved analytically in four limiting cases: fast and slow reactions as well as wide and narrow reaction windows. A general solution for the survival probabilities is obtained by ...

An engineered CuA Amicyanin capable of intermolecular electron transfer reactions.

The type I copper center of amicyanin was replaced with a binuclear CuA center. To create this model CuA protein, a portion of the amino acid sequence that contains three of the ligands to the native type I copper center of Paracoccus denitrificans amicyanin was replaced with the corresponding portion of sequence that provides five ligands for the CuA center of cytochrome c oxidase from P. deni...