scholarly journals Supramolecular organic and inorganic photochemistry: Radical pair recombination in micelles, electron transfer on starburst dendrimers, and the use of DNA as a molecular wire

1995 ◽  
Vol 67 (1) ◽  
pp. 199-208 ◽  
Author(s):  
N. J. Turro
Keyword(s):  
Electron Transfer ◽  
Radical Pair ◽  
Molecular Wire

Ultrafast Electron Transfer in the [Co(Cp)2|V(CO)6] Radical Pair

2002 ◽  
Vol 106 (7) ◽  
pp. 1152-1166 ◽  
Author(s):  
Timothy W. Marin ◽  
Bradley J. Homoelle ◽  
Kenneth G. Spears
Keyword(s):  
Electron Transfer ◽  
Radical Pair ◽  
Ultrafast Electron Transfer

scholarly journals Access to Primary Charge Separation Mechanism in Photosynthetic Reaction Centers: Anisotropic Excitation Spectra of Electric Field Modulated Fluorescence Yields

1990 ◽  
Vol 45 (6) ◽  
pp. 763-770 ◽  
Author(s):  
U. Eberl
Keyword(s):  
Electron Transfer ◽  
Electric Field ◽  
Radical Pair ◽  
Primary Electron ◽  
Reaction Centers ◽  
Separation Mechanism ◽  
Primary Charge Separation ◽  
Excitation Spectra ◽  
Primary Radical ◽  
Primary Radical Pair

AbstractTwo-step sequential and unistep, superexchange primary electron transfer form primary radical pair states which differ in the direction and magnitude of their dipole moments as revealed in the X-ray structure analysis. The direction can be measured by the excitation anisotropy of electric field induced changes of the fluorescence yield. This method determines angles between the dipole of the primary radical pair and photoselected transition moments (in absorption and emission) of cofactors in the reaction centers. Transitions particularly favourable for discrimination between the two models of primary electron transfer are discussed.

Radical pair formation due to compression-induced electron transfer in crystals of energetic salts

2021 ◽  
Author(s):  
Sergey V. Bondarchuk
Keyword(s):  
Electron Transfer ◽  
Pressure Dependence ◽  
Radical Pair ◽  
Pair Formation ◽  
Energetic Salts

This puzzle illustrates how explosive and non-explosive salts can be separated using pressure-dependence of the cationic charges.

Photochemistry of rhodamine dye salts involving intra-ion-pair electron transfer

2003 ◽  
Vol 81 (6) ◽  
pp. 789-798 ◽  
Author(s):  
Guilford Jones II ◽  
Xiaochun Wang ◽  
Jingqiu Hu
Keyword(s):  
Electron Transfer ◽  
Ethyl Acetate ◽  
Rhodamine 6G ◽  
Radical Pair ◽  
Ion Pairs ◽  
Ion Pair ◽  
Thiocyanate Ion ◽  
Rhodamine Dye ◽  
Triplet Radical Pair ◽  
Pair State

The electron-transfer photochemistry of rhodamine 6G thiocyanate ion pairs has been investigated. For dye in a low polarity solvent, such as ethyl acetate, the emission of rhodamine 6G is significantly quenched by thiocyanate counterions. Laser photolysis of rhodamine 6G and thiocyanate in ethyl acetate was studied in detail with the identification of the reduced rhodamine 6G radical species (λmax = 410 nm). The growth and decay of the R6G radical could be accounted for in part by a mechanism involving initial formation of dye triplet followed by electron transfer which provides a triplet radical-pair state on a µs timescale.Key words: electron transfer, ion pair, rhodamine 6G, triplet state.

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