Surface catalyzed electron transfer from polycyclic aromatic hydrocarbons (PAH) to methyl viologen dication: evidence for ground-state charge transfer complex formation on silica gel

1998 ◽  
Vol 117 (3) ◽  
pp. 223-233 ◽  
Author(s):  
Reza Dabestani ◽  
Krzysztof J Reszka ◽  
Michael E Sigman
Keyword(s):  
Electron Transfer ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Charge Transfer ◽  
Complex Formation ◽  
Aromatic Hydrocarbons ◽  
Ground State ◽  
Methyl Viologen ◽  
Charge Transfer Complex ◽  
Polycyclic Aromatic ◽  
State Charge

Ground-state charge-transfer complex formation in hybrid poly(3-hexyl thiophene):titanium dioxide solar cells

2008 ◽  
Vol 93 (22) ◽  
pp. 223302 ◽  
Author(s):  
I. Haeldermans ◽  
K. Vandewal ◽  
W. D. Oosterbaan ◽  
A. Gadisa ◽  
J. D’Haen ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Solar Cells ◽  
Charge Transfer ◽  
Complex Formation ◽  
Ground State ◽  
Charge Transfer Complex ◽  
State Charge

Charge-Transfer Complexes of Brominated Polycyclic Aromatic Hydrocarbons

1962 ◽  
Vol 15 (2) ◽  
pp. 278 ◽  
Author(s):  
TM Spotswood
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Charge Transfer ◽  
Aromatic Hydrocarbons ◽  
Charge Transfer Complex ◽  
Equilibrium Constants ◽  
Molecular Complexes ◽  
Charge Transfer Complexes ◽  
Extinction Coefficients ◽  
Polycyclic Aromatic ◽  
Molar Extinction Coefficients

Charge-transfer complex formation between the donors 1-bromonaphthalene. 9-bromophenanthrene, 9-bromoanthracene, 3-bromopyrene, and 7-bromobenz[a]-anthracene and the acceptors iodine, tetrachlorophthalic anhydride, 1,3,5-trinitrobenzene, and 2,4,7-trinitrofluorenone has been investigated. The positions of the charge-transfer absorption maxima, apparent molar extinction coefficients, and equilibrium constants have been determined in carbon tetrachloride solution and the results compared with those for the corresponding unsubstituted polycyclic aromatic hydrocarbons. The positions of the absorption maxima of the charge-transfer bands of the brominated hydrocarbons were anomalous but the apparent molar extinction coefficients and equilibrium constants were similar to those obtained for the parent hydrocarbons. The strength of charge-transfer bonding in molecular complexes of brominated polycyclic aromatic hydrocarbons is shown to be of the same order as that in molecular complexes of the unsubstituted hydrocarbons.

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