The appearance of reorganization of intramolecular low-frequency modes in the kinetics of electron transfer from the second excited state in zinc-porphyrin derivatives

2016 ◽  
Vol 65 (4) ◽  
pp. 964-971 ◽  
Author(s):  
M. V. Rogozina ◽  
R. G. Fedunov ◽  
A. I. Ivanov
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Low Frequency ◽  
Zinc Porphyrin ◽  
Porphyrin Derivatives ◽  
Kinetics Of

Photoinduced Electron Transfer from a Higher Excited State of a Porphyrin in a Zinc Porphyrin−Ruthenium(II)tris-Bipyridine Dyad

1999 ◽  
Vol 103 (5) ◽  
pp. 557-559 ◽  
Author(s):  
Denis LeGourriérec ◽  
Mikael Andersson ◽  
Jan Davidsson ◽  
Emad Mukhtar ◽  
Licheng Sun ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Photoinduced Electron Transfer ◽  
Zinc Porphyrin

Electron transfer in ruthenium/zinc porphyrin derivatives of recombinant human myoglobins. Analysis of tunneling pathways in myoglobin and cytochrome c

1993 ◽  
Vol 115 (4) ◽  
pp. 1485-1489 ◽  
Author(s):  
Danilo R. Casimiro ◽  
Luet L. Wong ◽  
Jorge L. Colon ◽  
Thomas E. Zewert ◽  
John H. Richards ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Cytochrome C ◽  
Zinc Porphyrin ◽  
Porphyrin Derivatives ◽  
Derivatives Of ◽  
Tunneling Pathways

scholarly journals Transient Exciplex Formation Electron Transfer Mechanism

2011 ◽  
Vol 2011 ◽  
pp. 1-18 ◽  
Author(s):  
Michael G. Kuzmin ◽  
Irina V. Soboleva ◽  
Elena V. Dolotova
Keyword(s):  
Experimental Data ◽  
Electron Transfer ◽  
Excited State ◽  
Transfer Reactions ◽  
Electron Transfer Mechanism ◽  
Electron Transfer Reactions ◽  
Exciplex Formation ◽  
State Electron ◽  
Enthalpy And Entropy ◽  
Kinetics Of

Transient exciplex formation mechanism of excited-state electron transfer reactions is analyzed in terms of experimental data on thermodynamics and kinetics of exciplex formation and decay. Experimental profiles of free energy, enthalpy, and entropy for transient exciplex formation and decay are considered for several electron transfer reactions in various solvents. Strong electronic coupling in contact pairs of reactants causes substantial decrease of activation energy relative to that for conventional long-range ET mechanism, especially for endergonic reactions, and provides the possibility for medium reorganization concatenated to gradual charge shift in contrast to conventional preliminary medium and reactants reorganization. Experimental criteria for transient exciplex formation (concatenated) mechanism of excited-state electron transfer are considered. Available experimental data show that this mechanism dominates for endergonic ET reactions and provides a natural explanation for a lot of known paradoxes of ET reactions.

Zinc Porphyrin–Re(I) Bipyridyl–Fullerene Triad: Synthesis, Characterization, and Kinetics of the Stepwise Electron-Transfer Processes Initiated by Visible Excitation

2014 ◽  
Vol 54 (1) ◽  
pp. 280-292 ◽  
Author(s):  
Paolo Cavigli ◽  
Tatiana Da Ros ◽  
Axel Kahnt ◽  
Marta Gamberoni ◽  
Maria Teresa Indelli ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Zinc Porphyrin ◽  
Transfer Processes ◽  
Electron Transfer Processes ◽  
Kinetics Of
Sign in / Sign up

Export Citation Format

Share Document