| Revista: | Quimica nova |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000313199 |
| ISSN: | 0100-4042 |
| Autors: | Nascimento, Gustavo M. do1 Temperini, Marcia L.A |
| Institucions: | 1Universidade de Sao Paulo, Instituto de Quimica, Sao Paulo. Brasil |
| Any: | 2006 |
| Període: | Jul |
| Volum: | 29 |
| Número: | 4 |
| Paginació: | 823-828 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | The potentialities of X-ray Absorption Near Edge Spectroscopy (XANES) of the N K edge (N K) obtained with the spherical grating monochromator beam line at the Brazilian National Synchrotron Light Laboratory are explored in the investigation of poly(aniline), nanocomposites and dyes. Through the analysis of N K XANES spectra of conducting polymers and many other dye compounds that are dominated by 1s®p*transitions, it was possible to correlate the band energy value with the nitrogen oxidation states. An extensive N K XANES spectral database was obtained, thus permitting the elucidation of the nature of different nitrogens present in the intercalated conducting polymers |
| Disciplines | Química |
| Paraules clau: | Química analítica, Colorantes, Polianilina, Espectroscopia de absorción de rayos X |
| Keyword: | Chemistry, Analytical chemistry, Dyes, Polyaniline, X-ray absorption spectroscopy |
| Text complet: | Texto completo (Ver HTML) |
