Photoinduced Charge Separation in Rigid Bichromophoric Compounds and Charge Transfer State Electron Transfer Reactivity

1995 ◽  
Vol 99 (39) ◽  
pp. 14223-14230 ◽  
Author(s):  
J. L. Habib Jiwan ◽  
J. Ph. Soumillion
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Charge Separation ◽  
Charge Transfer State ◽  
State Electron ◽  
Photoinduced Charge Separation ◽  
Photoinduced Charge ◽  
Transfer State

Photooxidation of Dicyanoaurate(I) Induced by Metal-to-Ligand Charge Transfer Excitation

1998 ◽  
Vol 53 (8) ◽  
pp. 853-855 ◽  
Author(s):  
Horst Kunkely ◽  
Arad Vogler
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Charge Transfer ◽  
Charge Transfer State ◽  
State Electron ◽  
Ligand Charge Transfer ◽  
Charge Transfer Excitation ◽  
Transfer State

Abstract The irradiation of [Au(CN)2]- in oxygen-saturated acetonitrile leads to photooxidation of Au(I). In the presence of additional chloride [Au(CN)2CL2]- is formed with φ= 0.5 x 10-4 at λirr = 254 nm. It is assumed that [Au(CN)2]- in its metal-to-ligand charge transfer state undergoes an excited state electron transfer to oxygen in the primary photochemical step.

Long-lived photoinduced charge transfer state of synthetically affable porphyrin-fullerene dyads

2003 ◽  
Vol 07 (10) ◽  
pp. 651-666 ◽  
Author(s):  
Franz-Peter Montforts ◽  
Ivan Vlassiouk ◽  
Sergei Smirnov ◽  
Michael Wedel
Keyword(s):  
Charge Transfer ◽  
Charge Separation ◽  
Photophysical Properties ◽  
Solvent Polarity ◽  
Charge Transfer State ◽  
Displacement Current ◽  
Intramolecular Electron Transfer ◽  
High Yields ◽  
Photoinduced Charge ◽  
Transfer State

Bislactone linked porphyrin-fullerene dyads show promising photophysical properties for mimicking photosynthesis. Optical and transient displacement current investigations of the dyads demonstrate efficient intramolecular electron transfer from porphyrin to fullerene with the lifetime of the charge transfer state on the order of a few nanoseconds in low polarity solvents. Solvent polarity effect on the yield of charge separation and conformations in the charge transfer state are investigated in detail. The facile synthesis could readily be applied to constructing extended compounds with high yields of photoinduced charge separation.

Photoinduced electron transfer in 5-bromouracil labeled DNA. A contrathermodynamic mechanism revisited by electron transfer theories

2019 ◽  
Vol 21 (8) ◽  
pp. 4387-4393 ◽  
Author(s):  
Lorenzo Cupellini ◽  
Paweł Wityk ◽  
Benedetta Mennucci ◽  
Janusz Rak
Keyword(s):  
Electron Transfer ◽  
Charge Separation ◽  
Photoinduced Electron Transfer ◽  
Charge Recombination ◽  
Photoinduced Charge Separation ◽  
Photoinduced Charge

Neither the rates of photoinduced charge separation nor charge recombination account for the substantial damage observed in the 5′-ABrU sequence.

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