Reactions of Aniline with Copper(ii) Compounds in Relation to the Formation of Copper-Polyaniline Composites*
Adeline Le Cocq A , Marija R. Gizdavic-Nikolaidis A , Allan J. Easteal A and Graham A. Bowmaker A B
+ Author Affiliations
- Author Affiliations
A School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland Mail Centre, Auckland 1142, New Zealand.
B Corresponding author. Email: ga.bowmaker@auckland.ac.nz
Australian Journal of Chemistry 65(7) 723-729 https://doi.org/10.1071/CH11338
Submitted: 15 August 2011 Accepted: 27 October 2011 Published: 10 February 2012
Abstract
Reactions of aniline with copper(ii) sulfate, chloride, or bromide in aqueous solution, yielded copper(ii)-aniline complexes, in contrast to previously reported studies, which claimed the formation of copper-polyaniline composites. The structure and morphology of the powder products were characterized by scanning electron microscopy, Raman and Fourier transform infrared spectroscopy, and elemental analysis. An electron paramagnetic resonance (EPR) study was also carried out on the reaction products, confirming their characterization as copper(ii) compounds. None of the reaction products showed significant conductivity, and none of the copper(ii)/aniline reactions resulted in the formation of polyaniline, contrary to previous claims in the literature.
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