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Cervantes, T., Louarn, G., de Santana, H., Skorka, L. & Kulszewicz-Bajer, I. (2015) Raman Changes Induced by Electrochemical Oxidation of Poly(triarylamine)s: Toward a Relationship between Molecular Structure Modifications and Charge Generation. J. Phys. Chem. B, 119 1756–1767.
Added by: Laurent Cournède (2016-03-10 18:36:42) |
| Type de référence: Article DOI: 10.1021/jp511087j Numéro d'identification (ISBN etc.): 1520-6106 Clé BibTeX: Cervantes2015 Voir tous les détails bibliographiques  |
Catégories: PMN Mots-clés: derivatives, neutron-scattering, oligomers, organic spin clusters, polyaniline, polymers, polyradicals, radical cations, spectroscopy, triphenylamine Créateurs: Cervantes, Kulszewicz-Bajer, Louarn, de Santana, Skorka Collection: J. Phys. Chem. B |
Consultations : 1/583
Indice de consultation : 4% Indice de popularité : 1% |
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Linear, alternating polymers of aromatic amines (p-phenylenediamine, bis(p-aminophenyl)amine, and diaminocarbazole) and either m-phenylene or 3,5-pyridine have been synthesized and characterized by electrochemical and spectroscopic means. The presence of radical cations in their electrochemically oxidized forms is manifested by new bands in the UV-vis-NIR spectra whose appearance can be correlated with reversible redox couples registered in the corresponding cyclic voltammograms at approximately the same potentials as well as with pronounced evolutions of their resonance Raman spectra. Detailed analysis of the Raman data gives information about the locations and the distribution of radical cations and spinless dication in the macromolecule. This approach can provide a new insight into the formation of high-spin states in these polymers.
Added by: Laurent Cournède |