Coherent Nuclear and Electronic Dynamics in Primary Charge Separation in Photosynthetic Reaction Centers:  A Redfield Theory Approach

2004 ◽  
Vol 108 (22) ◽  
pp. 7445-7457 ◽  
Author(s):  
Vladimir I. Novoderezhkin ◽  
Andrey G. Yakovlev ◽  
Rienk van Grondelle ◽  
Vladimir A. Shuvalov
Keyword(s):  
Charge Separation ◽  
Reaction Centers ◽  
Theory Approach ◽  
Photosynthetic Reaction Centers ◽  
Primary Charge Separation ◽  
Redfield Theory ◽  
Electronic Dynamics

Mechanism of the Primary Charge Separation in Bacterial Photosynthetic Reaction Centers

1988 ◽  
pp. 399-419 ◽  
Author(s):  
M. Bixon ◽  
Joshua Jortner ◽  
M. Plato ◽  
M. E. Michel-Beyerle
Keyword(s):  
Charge Separation ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers ◽  
Primary Charge Separation

A superexchange mechanism for the primary charge separation in photosynthetic reaction centers

1989 ◽  
Vol 977 (3) ◽  
pp. 273-286 ◽  
Author(s):  
M. Bixon ◽  
Joshua Jortner ◽  
M.E. Michel-Beyerle ◽  
A. Ogrodnik
Keyword(s):  
Charge Separation ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers ◽  
Primary Charge Separation

Interpretation of the Electric Field Sensitivity of the Primary Charge Separation in Photosynthetic Reaction Centers

1988 ◽  
Vol 28 (2-3) ◽  
pp. 133-139 ◽  
Author(s):  
Christopher C. Moser ◽  
Guillermo Alegria ◽  
M.R. Gunner ◽  
P. Leslie Dutton
Keyword(s):  
Electric Field ◽  
Charge Separation ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers ◽  
Primary Charge Separation ◽  
Field Sensitivity

scholarly journals Putative Hydrogen Bond to Tyrosine M208 in Photosynthetic Reaction Centers from Rhodobacter capsulatus Significantly Slows Primary Charge Separation

2014 ◽  
Vol 118 (24) ◽  
pp. 6721-6732 ◽  
Author(s):  
Miguel Saggu ◽  
Brett Carter ◽  
Xiaoxue Zhou ◽  
Kaitlyn Faries ◽  
Lynette Cegelski ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Charge Separation ◽  
Rhodobacter Capsulatus ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers ◽  
Primary Charge Separation

scholarly journals Excitonic structure and charge separation in the heliobacterial reaction center probed by multispectral multidimensional spectroscopy

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yin Song ◽  
Riley Sechrist ◽  
Hoang H. Nguyen ◽  
William Johnson ◽  
Darius Abramavicius ◽  
...  
Keyword(s):  
Reaction Center ◽  
Charge Separation ◽  
Electronic Spectroscopy ◽  
Spectroscopic Studies ◽  
Primary Electron ◽  
Reaction Centers ◽  
Separation Mechanism ◽  
Photosynthetic Reaction Centers ◽  
Density Analysis ◽  
Function Relationship

AbstractPhotochemical reaction centers are the engines that drive photosynthesis. The reaction center from heliobacteria (HbRC) has been proposed to most closely resemble the common ancestor of photosynthetic reaction centers, motivating a detailed understanding of its structure-function relationship. The recent elucidation of the HbRC crystal structure motivates advanced spectroscopic studies of its excitonic structure and charge separation mechanism. We perform multispectral two-dimensional electronic spectroscopy of the HbRC and corresponding numerical simulations, resolving the electronic structure and testing and refining recent excitonic models. Through extensive examination of the kinetic data by lifetime density analysis and global target analysis, we reveal that charge separation proceeds via a single pathway in which the distinct A0 chlorophyll a pigment is the primary electron acceptor. In addition, we find strong delocalization of the charge separation intermediate. Our findings have general implications for the understanding of photosynthetic charge separation mechanisms, and how they might be tuned to achieve different functional goals.

scholarly journals Determination of the primary charge separation rate in isolated photosystem II reaction centers with 500-fs time resolution

1989 ◽  
Vol 86 (2) ◽  
pp. 524-528 ◽  
Author(s):  
M. R. Wasielewski ◽  
D. G. Johnson ◽  
M. Seibert ◽  
Govindjee
Keyword(s):  
Photosystem Ii ◽  
Time Resolution ◽  
Charge Separation ◽  
Reaction Centers ◽  
Primary Charge Separation ◽  
Separation Rate

Novel multipulse saturation spectroscopy for quantum yield determination of charge separation in modified photosynthetic reaction centers

1999 ◽  
Vol 306 (5-6) ◽  
pp. 239-248 ◽  
Author(s):  
P. Müller ◽  
G. Hartwich ◽  
A. Ogrodnik ◽  
M.E. Michel-Beyerle
Keyword(s):  
Quantum Yield ◽  
Charge Separation ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers ◽  
Saturation Spectroscopy ◽  
Yield Determination
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