Investigating Energy Transfer in the Bacterial Reaction Center with 2D Electronic Spectroscopy

2011 ◽  
Author(s):  
G.S. Schlau-Cohen ◽  
E. De Re ◽  
G.R. Fleming
Keyword(s):  
Energy Transfer ◽  
Reaction Center ◽  
Electronic Spectroscopy ◽  
Bacterial Reaction Center

scholarly journals Quantum coherence as a witness of vibronically hot energy transfer in bacterial reaction center

2017 ◽  
Vol 3 (9) ◽  
pp. e1603141 ◽  
Author(s):  
David Paleček ◽  
Petra Edlund ◽  
Sebastian Westenhoff ◽  
Donatas Zigmantas
Keyword(s):  
Energy Transfer ◽  
Reaction Center ◽  
Quantum Coherence ◽  
Bacterial Reaction Center

Determination of Excited-State Energies and Dynamics in the B Band of the Bacterial Reaction Center with 2D Electronic Spectroscopy

2012 ◽  
Vol 3 (17) ◽  
pp. 2487-2492 ◽  
Author(s):  
Gabriela S. Schlau-Cohen ◽  
Eleonora De Re ◽  
Richard J. Cogdell ◽  
Graham R. Fleming
Keyword(s):  
Excited State ◽  
Reaction Center ◽  
Electronic Spectroscopy ◽  
Bacterial Reaction Center

Electronic Couplings and Energy Transfer Dynamics in the Oxidized Primary Electron Donor of the Bacterial Reaction Center

2004 ◽  
Vol 108 (5) ◽  
pp. 1753-1765 ◽  
Author(s):  
Xanthipe J. Jordanides ◽  
Gregory D. Scholes ◽  
Warwick A. Shapley ◽  
Jeffrey R. Reimers ◽  
Graham R. Fleming
Keyword(s):  
Energy Transfer ◽  
Reaction Center ◽  
Electron Donor ◽  
Primary Electron ◽  
Primary Electron Donor ◽  
Bacterial Reaction Center

scholarly journals Dynamic band-shift signal in two-dimensional electronic spectroscopy: A case of bacterial reaction center

2021 ◽  
Vol 154 (11) ◽  
pp. 115102
Author(s):  
Eglė Bukartė ◽  
David Paleček ◽  
Petra Edlund ◽  
Sebastian Westenhoff ◽  
Donatas Zigmantas
Keyword(s):  
Reaction Center ◽  
Electronic Spectroscopy ◽  
Two Dimensional ◽  
Band Shift ◽  
Bacterial Reaction Center

Electronic Interactions in the Bacterial Reaction Center Revealed by Two-Color 2D Electronic Spectroscopy

2018 ◽  
Vol 9 (18) ◽  
pp. 5219-5225 ◽  
Author(s):  
Arkaprabha Konar ◽  
Riley Sechrist ◽  
Yin Song ◽  
Veronica R. Policht ◽  
Philip D. Laible ◽  
...  
Keyword(s):  
Reaction Center ◽  
Electronic Spectroscopy ◽  
Bacterial Reaction Center ◽  
Electronic Interactions

scholarly journals Polydopamine/Ethylenediamine Nanoparticles Embedding a Photosynthetic Bacterial Reaction Center for Efficient Photocurrent Generation

2021 ◽  
pp. 2000303
Author(s):  
Gabriella Buscemi ◽  
Danilo Vona ◽  
Roberta Ragni ◽  
Roberto Comparelli ◽  
Massimo Trotta ◽  
...  
Keyword(s):  
Reaction Center ◽  
Bacterial Reaction Center ◽  
Photocurrent Generation

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.

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