Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2013-04-01

Chemical oxidation of aniline and N-methylaniline: a kinetic study by Raman spectroscopy.

Regina Mažeikienė, Gediminas Niaura, Albertas Malinauskas

Index: Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 106 , 34-40, (2013)

Full Text: HTML

Abstract

For the first time, chemical oxidation of aniline and N-methylaniline with dichromate as oxidant has been studied by Raman spectroscopy with 785 nm laser beam excitation, and the suitability of this technique for kinetic study of this process was demonstrated. For both monomers used, a sigmoidal growth of the intensities for most prominent Raman bands was observed, showing a self-accelerating character of this reaction. Self-acceleration appears most clearly expressed for aniline, and for the low oxidant-to-monomer molar ratio used. After reaching their maximum values, the intensities of Raman bands drop almost to zero, most probably due to increase in opacity and optical absorbance of reaction mixture. The kinetics of an increase, and the next following decrease of band intensities depend on the monomer used, and oxidant-to-monomer molar ratio.Copyright © 2013 Elsevier B.V. All rights reserved.

Related Compounds

  • Anilinium chloride
  • <4-13C>Aniline-4-...
  • Aniline
  • N-Methylaniline
  • Anilin-<1-13C>
  • Aniline-15N
  • Aniline sulfate

Related Articles:

Multifunctional Magnetic Gd(3+) -Based Coordination Polymer Nanoparticles: Combination of Magnetic Resonance and Multispectral Optoacoustic Detections for Tumor-Targeted Imaging in vivo.

2015-11-11

[Small 11 , 5675-86, (2015)]

Polyamide nanofiltration membranes to remove aniline in aqueous solutions.

2014-01-01

[Environ. Technol. 35(9-12) , 1175-81, (2014)]

Design, synthesis, and evaluation of (E)-N-substituted benzylidene–aniline derivatives as tyrosinase inhibitors

2012-11-01

[Eur. J. Med. Chem. 57 , 383-90, (2012)]

Ugi multicomponent reaction product: the inhibitive effect on DNA oxidation depends upon the isocyanide moiety.

2013-09-06

[J. Org. Chem. 78(17) , 8696-704, (2013)]

Novel amphiphilic polymeric ionic liquid-solid phase micro-extraction membrane for the preconcentration of aniline as degradation product of azo dye Orange G under sonication by liquid chromatography-tandem mass spectrometry.

2014-07-04

[J. Chromatogr. A. 1349 , 24-9, (2014)]

More Articles...