Copolymers of aniline and nitroanilines

Koval’chuk, E. P.; Whittingham, Stan; Skolozdra, O.M.; Zavalij, Peter Y.; Zavaliy, I.Yu.; Reshetnyak, Оleksandr; Błażejowski, Jerzy

doi:10.1016/s0254-0584(00)00391-6

Cited by 12 publications

(4 citation statements)

References 60 publications

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“…[8–14, 52–59]). These processes may pass through different intermediates among which the radical cation of aniline (PhNH 2 +• ) is possible [8–14, 52–57]. Oxidation of aniline by oxygen from air, catalyzed by sunlight or UV light, is also a very complex process [13, 60–62].…”

Section: Relative Stabilitiesmentioning

confidence: 99%

“…(see for example refs. [ 8 – 14 , 52 – 59 ]). These processes may pass through different intermediates among which the radical cation of aniline (PhNH 2 +• ) is possible [ 8 – 14 , 52 – 57 ].…”

Section: Relative Stabilitiesmentioning

confidence: 99%

“…The redox forms of aniline may be formed in the presence of oxidizing or reducing agents. They may also be generated electrochemically, photochemically, or with solvated electrons in liquid ammonia {e.g., K(NH 3 ) → K + (NH 3 ) + e(NH 3 )} [ 7 – 14 ]. They may be identified by various spectroscopic techniques, e.g., zero kinetic energy photoelectron spectroscopy [ 15 , 16 ], or infrared depletion spectroscopy [ 17 – 19 ].…”

Section: Introductionmentioning

confidence: 99%

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Consequence of one-electron oxidation and one-electron reduction for aniline

2011

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Quantum-chemical calculations were performed for all possible isomers of neutral aniline and its redox forms, and intramolecular proton-transfer (prototropy) accompanied by π-electron delocalization was analyzed. One-electron oxidation (PhNH2 – e → [PhNH2]+•) has no important effect on tautomeric preferences. The enamine tautomer is preferred for oxidized aniline similarly as for the neutral molecule. Dramatical changes take place when proceeding from neutral to reduced aniline. One-electron reduction (PhNH2 + e → [PhNH2]-•) favors the imine tautomer. Independently on the state of oxidation, π- and n-electrons are more delocalized for the enamine than imine tautomers. The change of the tautomeric preferences for reduced aniline may partially explain the origin of the CH tautomers for reduced nucleobases (cytosine, adenine, and guanine).

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Section: Relative Stabilitiesmentioning

confidence: 99%

Section: Relative Stabilitiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Consequence of one-electron oxidation and one-electron reduction for aniline

2011

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“…Co-polymers of aniline and nitroaniline are electro-conductive in nature and can be used as positive electrodes in a couple along with Mg as negative electrode [6].…”

Section: Introductionmentioning

confidence: 99%

Reactions of reducing radicals with 2- and 3-nitroanilines in aqueous solutions: a pulse radiolysis study

Rajesh

Dey

Naik

et al. 2008

Res. Chem. Intermed.

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Abstract-Reactions of 2-and 3-nitroanilines (2-and 3-NA) with e − aq , H-atoms and one-electron reductants have been studied using pulse radiolysis in aqueous solutions. Reactions of e − aq were found to be quite fast with both 2-NA and 3-NA resulting in their corresponding semi-reduced species which are reducing in nature. Reduction potentials for 2-NA/2-NA •− have been estimated to be approx. −0.56 V vs. NHE and that for 3-NA/3-NA •− was found to be between −0.185 V and −0.45 V vs. NHE. Semi-reduced 2-NA has main absorption peak at 300 nm with a shoulder in the 350 nm region and a broad weak band in the 470-500 nm region, whereas semi-reduced 3-NA possesses an absorption peak at 520 nm. Reducing radicals such as (CH 3 ) 2 C • OH and CO•− 2 reacted with 2-NA, producing semi-reduced species, whereas reactions of these radicals with 3-NA produced their corresponding radical-adduct species.

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