VIBRATIONAL ANALYSIS OF REDUCED AND OXIDIZED FORMS OF POLYANILINE

Citation
S. Quillard et al., VIBRATIONAL ANALYSIS OF REDUCED AND OXIDIZED FORMS OF POLYANILINE, Synthetic metals, 55(1), 1993, pp. 475-480
Citations number
9
Categorie Soggetti
Physics, Condensed Matter","Metallurgy & Mining
Journal title
ISSN journal
03796779
Volume
55
Issue
1
Year of publication
1993
Pages
475 - 480
Database
ISI
SICI code
0379-6779(1993)55:1<475:VAORAO>2.0.ZU;2-T
Abstract
In this paper, we present dynamic calculations of vibrational modes of two forms of polyaniline : the fully reduced form (Leucoemeraldine Ba se) and the fully oxidized form (Pernigraniline Base). Our model is ba sed on the use of force constants to provide an interpretation of expe rimental frequencies obtained by Resonant Raman Scattering and infrare d absorption. In order to obtain the best set of parameters, we have p erformed calculations on both polymers and model compounds. Our model leads to a good fit between experimental and calculated frequencies, a lso we present the main force constants which are in agreement with pr evious works performed on similar aromatic structures.