Relationship between rate and free energy difference for electron transfer from cytochrome c2 to the reaction center in Rhodobacter sphaeroides

Biochemistry ◽  
1994 ◽  
Vol 33 (46) ◽  
pp. 13517-13523 ◽  
Author(s):  
X. Lin ◽  
J. C. Williams ◽  
J. P. Allen ◽  
P. Mathis
Keyword(s):  
Electron Transfer ◽  
Free Energy ◽  
Reaction Center ◽  
Rhodobacter Sphaeroides ◽  
Energy Difference ◽  
Free Energy Difference ◽  
Cytochrome C2

X-ray Structure Determination of the Cytochrome c2: Reaction Center Electron Transfer Complex from Rhodobacter sphaeroides

2002 ◽  
Vol 319 (2) ◽  
pp. 501-515 ◽  
Author(s):  
Herbert L. Axelrod ◽  
Edward C. Abresch ◽  
Melvin Y. Okamura ◽  
Andrew P. Yeh ◽  
Douglas C. Rees ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Reaction Center ◽  
Rhodobacter Sphaeroides ◽  
Structure Determination ◽  
X Ray ◽  
Cytochrome C2 ◽  
Electron Transfer Complex

SOLVENT REORGANIZATION ENERGY WITH DIELECTRIC GREEN FUNCTIONAL AND ITS APPLICATION TO RETURN ELECTRON TRANSFER IN TETRACYANOETHYLENE-HEXAMETHYLBENZENE SYSTEM

2004 ◽  
Vol 03 (04) ◽  
pp. 609-627 ◽  
Author(s):  
QUAN ZHU ◽  
KE-XIANG FU ◽  
XIANG-YUAN LI ◽  
JI-FENG LIU
Keyword(s):  
Electron Transfer ◽  
Free Energy ◽  
Reorganization Energy ◽  
Energy Difference ◽  
Solute Molecule ◽  
Sphere Model ◽  
Free Energy Difference ◽  
Solvent Reorganization Energy ◽  
Electrostatic Free Energy ◽  
Non Equilibrium

Based on classical electrodynamics, the proper integral formula for general cases is adopted to estimate the electrostatic free energy difference between two given states, e.g. equilibrium and non-equilibrium states in the charging process of solute molecule in solution. With adequate consideration of the change of dielectric property in establishing the non-equilibrium state, the electrostatic free energy for this state can be obtained in a form differing from the traditional theories. The general formula of the solvent reorganization energy is derived according to the definition of the free energy difference between the non-equilibrium and equilibrium states due to the same electronic state of the solute molecule. Applying it to the two-sphere model and single-sphere model, we obtain the new expressions of the solvent reorganization energy, which are convenient to be used in practice. In the investigation of the return electron transfer of tetracyanoethylene-hexmethylbenzene system, good results can be obtained by using our expression when they are compared with those from the experiment.

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