Electroreduction of Aromatic Nitro Compounds: Case for Comparison of Information Obtained by Polarography and Voltammetry

1993 ◽  
Vol 58 (1) ◽  
pp. 41-46 ◽  
Author(s):  
Petr Zuman
Keyword(s):  
Cyclic Voltammetry ◽  
Nitro Compounds ◽  
Aromatic Nitro Compounds ◽  
Potentiostatic Method ◽  
Electron Process ◽  
The Difference ◽  
Aromatic Nitro ◽  
Electron Reduction

The difference between the information obtained by d.c. polarography (which is virtually a potentiostatic method) and cyclic voltammetry (CV), where products formed at one potential can affect electrolysis at another potential is discussed. The principle is demonstrated on reduction of nitrobenzenes, where at DME the reduction usually occurs as a strictly four-electron process, whereas in CV the arylhydroxylamines formed react wit an intermediate of the four-electron reduction.

Radikalionen, 69 [1, 2] Die elektrochemische Reduktion aromatischer Nitro-Verbindungen in aprotischer Lösung / Radical Ions, 69 [1, 2] The Electrochemical Reduction of Aromatic Nitro Compounds in Aprotic Solution

1985 ◽  
Vol 40 (11) ◽  
pp. 1463-1475 ◽  
Author(s):  
Hans Bock ◽  
Ulrike Lechner-Knoblauch
Keyword(s):  
Electron Transfer ◽  
Cyclic Voltammetry ◽  
Redox Reactions ◽  
Electrochemical Behaviour ◽  
Nitro Compounds ◽  
Radical Ions ◽  
Aromatic Nitro Compounds ◽  
Reduction Potentials ◽  
Aromatic Nitro ◽  
Reversible Reduction

The reduction potentials of 40 aromatic nitro compounds Rπ(NO2)n with Rπ = benzene, naphthalene, anthracene, fluorene and carbazole and n = 1 to 4 nitro groups are determined by cyclic voltammetry in DMF under aprotic conditions. The perturbation by the strongly electron accepting substituents can be rationalized via correlation with HMO eigenvalues. Based on reversibility criteria, the electrochemical behaviour is discussed and the compounds are classified with respect to reversible or irreversible one-electron transfer as well as up to 4 (quasi)-reversible reduction steps. The CV data measured can be used to predict redox reactions of aromatic nitro compounds in inert solvents.

Quantitative Estimation of Aromatic Nitro Compounds

1954 ◽  
Vol 26 (7) ◽  
pp. 1238-1240 ◽  
Author(s):  
Enno. Wolthuis ◽  
Stephen. Kolk ◽  
Luke. Schaap
Keyword(s):  
Quantitative Estimation ◽  
Nitro Compounds ◽  
Aromatic Nitro Compounds ◽  
Aromatic Nitro
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