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Temperature Dependence of Electron Transfer to the M-Side Bacteriopheophytin in Rhodobacter capsulatus Reaction Centers
hydrogenation fatty acids stereoselectivity kinetics
2016/5/25
Subpicosecond time-resolved absorption measurements at 77 K on two reaction center (RC) mutants of Rhodobacter capsulatus are reported. In the D(LL) mutant the D helix of the M subunit has been substi...
Probing Excited State Electron Transfer by Resonance Stark Spectroscopy.II.Theory and Application
Excited State Electron Resonance Stark Spectroscopy Theory Application
2016/5/23
A theory of the resonance Stark effect data reported in part 1 (preceding paper in this issue) is developed. The model used involves a weak charge resonance interaction between the excited state of an...
Probing Excited State Electron Transfer by Resonance Stark Spectroscopy.I.Experimental Results for Photosynthetic Reaction Centers
adatoms bismuth photoelectron diffraction silicon
2016/5/23
Higher order Stark spectroscopy has recently been introduced and applied to characterize the electrooptic properties of chromophores in bacterial photosynthetic reaction centers.1 In the course of the...
Temperature Dependence of the Electric Field Modulation of Electron-Transfer Rates:Charge Recombination in Photosynthetic Reaction Centers
solar energy inorganic, organic, physical and analytical chemistry photosynthesis reaction kinetics electric fields electron transfer entropy experimental data free energy mathematical models
2016/5/23
The rates of electron-transfer reactions can be systematically varied by application of external electric fields. The electric field effect on the charge recombination rate constant of the state P[sup...
Distance Dependence of Electron-Transfer Reactions in Organized Systems:The Role of Superexchange and Non-Condon Effects in Photosynthetic Reaction Centers
Distance Dependence Electron-Transfer Reactions Organized Systems Superexchange Non-Condon Photosynthetic Reaction Centers
2016/5/23
Extremely long distance electron transfer is observed in some photosynthetic reaction centers. For several charge recombination reactions, the rate appears to fall off much more slowly with distance t...
Spectral analysis of electron transfer kinetics. II
Spectral analysis electron transfer kinetics
2014/9/24
Electron transfer processes in Debye solvents are studied using a spectral analysis method recently proposed. Spectral structure of a nonadiabatic two-state diffusion equation is investigated to revea...
Spectral analysis of electron transfer kinetics. I. Symmetric reactions
Spectral analysis electron transfer kinetics Asymmetric reactions
2014/9/24
A spectral analysis method is proposed to characterize multiple time scales in electron transfer processes, including vibrational relaxation, electronic coherence, activated curve crossing, or barrier...
Steepest Descent Path Study of Electron-Transfer Reactions
Steepest Descent Path Electron-Transfer Reactions
2014/9/24
A nonadiabatic steepest descent path method is developed as a qualitative tool to analyze and characterize three different kinetic regimes of electron transfer. In this approach, Miller’s semiclassica...
An adiabatic picture for electron transfer in mixed-valence systems
An adiabatic picture electron transfer mixed-valence systems
2014/9/24
An adiabatic picture is proposed to analyze short-time electronic coherence and dephasing in mixed-valence systems,which cannot be described by the Redfield equation or the golden-rule rate theory. In...
The computation of electron transfer rates: The nonadiabatic instanton solution
electron transfer rates nonadiabatic instanton
2014/9/24
A computational theory for determining electron transfer rate constants is formulated based on an instanton expression for the quantum rate and the self-consistent solution of the imaginary time nonad...