The Effect of Reduction Potential on the Generation of the Perylene Diimide Radical Anions

2018 ◽  
Vol 92 (7) ◽  
pp. 1261-1265 ◽  
Author(s):  
Y. Z. Zhao ◽  
K. X. Li ◽  
S. Y. Ding ◽  
M. Zhu ◽  
H. P. Ren ◽  
...  
Keyword(s):  
Reduction Potential ◽  
Perylene Diimide ◽  
Radical Anions

Free-radical reductions of arenediazonium ions in aqueous solution. V. Pulse-radiolytic determination of rate constants for some para-substitutedbenzenediazonium ions

1981 ◽  
Vol 34 (7) ◽  
pp. 1433 ◽  
Author(s):  
JE Packer ◽  
J Monig ◽  
BC Dobson
Keyword(s):  
Aqueous Solution ◽  
Free Radical ◽  
Rate Constants ◽  
Substituent Effect ◽  
Reduction Potential ◽  
Radical Anions ◽  
Semiquinone Radical ◽  
Substituent Group

Some rate constants for the reduction of para-substituted benzenediazonium ions by the radicals eaq-, ·CH2OH, (CH3)2·COH and some semiquinone radical anions have been measured. The substituent group has no effect on the rates with eaq-, but as the reduction potential of the reducing radical becomes more positive, the substituent effect increases, electron-withdrawing groups enhancing the rates. No free halide is formed on reduction of p-BrC6H4N2+ or p-IC6H4N2+ by eaq- or ·CH2OH.

Correlation of the first reduction potential of selected radiosensitizers determined by cyclic voltammetry with theoretical calculations

2011 ◽  
Vol 76 (8) ◽  
pp. 937-946 ◽  
Author(s):  
Miroslav Gál ◽  
Viliam Kolivoška ◽  
Marta Ambrová ◽  
Ján Híveš ◽  
Romana Sokolová
Keyword(s):  
Experimental Study ◽  
Cyclic Voltammetry ◽  
Radical Anion ◽  
Reduction Potential ◽  
Theoretical Calculations ◽  
Dft Method ◽  
Basis Set ◽  
Radical Anions ◽  
Electron Affinities ◽  
Electron Reduction

Radiosensitizers are drugs that make cancer cells more sensitive to radiation therapy. The cytotoxic properties of such compounds are due to the fact that in the cell these compounds undergo one-electron reduction to generate radical anions. Therefore, their theoretical and/or experimental study is of high interest. To determine the correlation between reduction potential determined by cyclic voltammetry measurements and some physicochemical properties of selected radiosensitizers theoretical calculations of electron affinities based on the DFT method with B3LYP functional at the level of 6-311++G** basis set in vacuum were utilized. Very good correlation was found between electron affinities of radiosensitizers and their reduction potential and so called E71 potential that account for the energy necessary to transfer the first electron to an electroactive group at pH 7 in aqueous medium to form a radical anion.

scholarly journals Perylene diimide-based stable chiral radical anions featuring strong NIR absorptions

2020 ◽  
Vol 66 (10) ◽  
pp. 1257-1261
Author(s):  
Li Zhang ◽  
Dezhi He ◽  
Hui-Jun Zhang ◽  
Jianbin Lin
Keyword(s):  
Perylene Diimide ◽  
Radical Anions

Photoexcited perylene diimide radical anions for the reduction of aryl halides: a bay-substituent effect

2018 ◽  
Vol 5 (15) ◽  
pp. 2296-2302 ◽  
Author(s):  
Hai-Xian Gong ◽  
Zhu Cao ◽  
Meng-Hua Li ◽  
Sai-Hu Liao ◽  
Mei-Jin Lin
Keyword(s):  
Excited State ◽  
Substituent Effect ◽  
Aryl Halides ◽  
Perylene Diimide ◽  
Radical Anions ◽  
State Reduction ◽  
Reduction Potentials ◽  
Photocatalytic Activities

Photoexcited perylene diimide radical anions exhibit remarkable substituent-dependent photocatalytic activities towards the reduction of aryl halides, which are mainly controlled by their excited-state reduction potentials and SOMO−1 energies.

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