Journal ArticleDOI
Time-Resolved Optical Detection of Coherent Spin Motion for Organic-Radical-Ion Pairs in Solution
TLDR
In this article, the evolution of the singlet character of correlated ion radical pairs, prepared by high-energy impact in alkane solutions, is monitored by nanosecond-time-resolved solute-recombination fluorescence.Abstract:
The evolution of the singlet character of correlated ion radical pairs, prepared by high-energy impact in alkane solutions, is monitored by nanosecond-time-resolved solute-recombination fluorescence. Results obtained in the presence and absence of magnetic fields ($Bl~4$ kG) show evidence for damped periodic modulations ($\ensuremath{\omega}\ensuremath{\approx}10$ MHz) of fluorescence intensity. They are explained in terms of hyperfine-interaction-induced coherent singlet-triplet mixing, and of field-dependent spin-lattice relaxation.read more
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Journal ArticleDOI
Semiclassical description of electron spin motion in radicals including the effect of electron hopping
TL;DR: In this article, the electron spin correlation tensor is derived from the theory of rotational diffusion, and the effect of electron hopping between molecules on the spin correlations is analyzed in the context of a radical pair.
Journal ArticleDOI
The generation, diffusion, spin motion, and recombination of radical pairs in solution in the nanosecond time domain
Z. Schulten,Klaus Schulten +1 more
TL;DR: In this paper, a theoretical description of the spin-selective recombination of radicals is provided based on a coherent spin motion superimposed on the diffusive motion of the radicals, induced by the hyperfine coupling between electron and nuclear spins.
Journal ArticleDOI
Solvent, isotope, and magnetic field effects in the geminate recombination of radical ion pairs
TL;DR: In this article, the magnetic field dependence of the geminate recombination triplet yield of radical ion pairs generated via photoinduced electron transfer in polar solvents is investigated for the systems pyrene/N, Ndimethylaniline (Py/DMA), pyrene 3,5,dimethoxy•N,Ndimethynylinox•N and pyrene DMDMA, and the perdeuterated system Py•d10/dMA•d11.
Journal ArticleDOI
Electron transfer and spin exchange contributing to the magnetic field dependence of the primary photochemical reaction of bacterial photosynthesis.
TL;DR: The yield phiT of triplet products "PR" generated in reaction centers of Rhodopseudomonas sphaeroides in which the "primary" acceptor is reduced had been found to depend on external magnetic fields.
Journal ArticleDOI
Theory of time-domain measurement of spin-dependent recombination with pulsed electrically detected magnetic resonance
Christoph Boehme,Klaus Lips +1 more
TL;DR: In this paper, the theoretical foundations of the time domain measurement of spin-dependent charge carrier recombination by means of pulsed electrically detected magnetic resonance (EDMR) are outlined.