Primary Electron Transfer Reactions in Heliobacteria and Photosystem I

1995 ◽  
pp. 1169-1172
Author(s):  
Winfried Leibl ◽  
Bruno Toupance ◽  
Jacques Breton
Keyword(s):  
Electron Transfer ◽  
Photosystem I ◽  
Primary Electron ◽  
Transfer Reactions ◽  
Electron Transfer Reactions

Rates of Primary Electron Transfer Reactions in the Photosystem I Reaction Center Reconstituted with Different Quinones as the Secondary Acceptor

1994 ◽  
Vol 98 (43) ◽  
pp. 11220-11225 ◽  
Author(s):  
Shigeichi Kumazaki ◽  
Masayo Iwaki ◽  
Isamu Ikegami ◽  
Hideki Kandori ◽  
Keitaro Yoshihara ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Reaction Center ◽  
Photosystem I ◽  
Primary Electron ◽  
Transfer Reactions ◽  
Electron Transfer Reactions

Transient states in photoinduced electron transfer reactions of porphyrin- and phthalocyanine-fullerene dyads

2009 ◽  
Vol 13 (10) ◽  
pp. 1090-1097 ◽  
Author(s):  
Helge Lemmetyinen ◽  
Nikolai Tkachenko ◽  
Alexander Efimov ◽  
Marja Niemi
Keyword(s):  
Electron Transfer ◽  
Charge Separation ◽  
Photoinduced Electron Transfer ◽  
Transient State ◽  
Primary Electron ◽  
Transfer Reactions ◽  
Acceptor Pair ◽  
Electron Transfer Reactions ◽  
Exciplex Formation ◽  
Donor And Acceptor

This paper combines the most important results on studies performed by the authors during the last decade on photoinduced electron transfer reactions of pheophytin-, phthalocyanine-, and porphyrin-fullerene dyads, in which donor and acceptor moieties are covalently linked to each other. Practically all studied molecules form an intramolecular exciplex as a transient state before the formation of the charge separation state or tight ion pair. When the center-to-center distance of the donor and acceptor pair is short (7–10 Å) both the exciplex formation and primary electron transfer are extremely fast with rate constants of 7–23 × 1012 s -1 and 40–1400 × 109 s -1, respectively. Rates become slower when the distance and orientational fluctuation increases. No systematic correlation between free energies and the rates of the formation and recombination of the exciplex and the charge separation state, respectively, were observed. The mechanism is discussed in frames of the Marcus electron transfer and the radiationless quantum transition theories.

scholarly journals Comparisons of Electron Transfer Reactions in a Cyanobacterial Tetrameric and Trimeric Photosystem I Complexes

2018 ◽  
Vol 94 (3) ◽  
pp. 564-569 ◽  
Author(s):  
Ivan V. Shelaev ◽  
Mahir D. Mamedov ◽  
Fedor E. Gostev ◽  
Arseny V. Aybush ◽  
Meng Li ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photosystem I ◽  
Transfer Reactions ◽  
Electron Transfer Reactions

scholarly journals Tryptophan as a Probe of Photosystem I Electron Transfer Reactions: A UV Resonance Raman Study

2009 ◽  
Vol 113 (33) ◽  
pp. 11367-11370 ◽  
Author(s):  
Jun Chen ◽  
Shana L. Bender ◽  
James M. Keough ◽  
Bridgette A. Barry
Keyword(s):  
Electron Transfer ◽  
Photosystem I ◽  
Resonance Raman ◽  
Transfer Reactions ◽  
Electron Transfer Reactions ◽  
Uv Resonance Raman ◽  
Raman Study

Electron transfer reactions in both the oxidizing and reducing sites of photosystem I

1992 ◽  
Vol 343 (1-2) ◽  
pp. 205-212
Author(s):  
Manuel Hervás ◽  
José A. Navarro ◽  
Miguel A. De la Rosa ◽  
Gordon Tollin
Keyword(s):  
Electron Transfer ◽  
Photosystem I ◽  
Transfer Reactions ◽  
Electron Transfer Reactions
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