%0 Journal Article %1 RN367 %A Campos-Vallette, M.M. %A Rodriguez, M.J. %A Chapanoff, M.A. %A Clavijo, E. %A Gomez-Jeria, J.S. %A Aliaga, A.E. %A Jara, G.P. %A Celis, F. %A Paipa, C. %A Leyton, P. %D 2017 %I 2017 John Wiley & Sons, Ltd. %J Journal of Raman Spectroscopy %K ag belts, colloids, dqcauchile dyes dyes, electrospray-ionization, enhanced fibers, ionization mapuche mass-spectrometry, nanoparticles, natural nylon organic pigments, raman-scattering, red sers, silver spectroscopy synthetic trariwe, works-of-art, %N 7 %P 958-965 %R 10.1002/jrs.5147 %T Sers Spectrum of Red Dyes in the Mapuche Belts from the Beginning of the Xxth Century %U /brokenurl#<Go to ISI>://WOS:000405111500008 %V 48 %X Red dyes in seven belts (trariwe) belonging to the Mapuche culture, dated as beginning of the XXth century and stored in Museo Regional de la Araucania, Chile, were studied by using ultraviolet-visible, liquid chromatography coupled to mass spectrometry, Raman and Surface Enhanced Raman Scattering spectroscopies. Red dyes were extracted and analysed; the spectral analysis allowed identifying that the principal red dye in five samples is highly consistent with a commercial synthetic aniline, the azopigment PR57. Another monoazopigment, an orange benzimidazolone, was identified in two samples. A molecular model for the PR57/Ag surface interaction supports the idea that the dye mainly exposes to the metal the carboxylate and sulphonate groups; the red azopigment is oriented rather tilted with the two aromatic rings being almost coplanar to the surface. The electrostatic interactions are the main factor of the PR57/Ag layer interaction.

@article{RN367, abstract = {Red dyes in seven belts (trariwe) belonging to the Mapuche culture, dated as beginning of the XXth century and stored in Museo Regional de la Araucania, Chile, were studied by using ultraviolet-visible, liquid chromatography coupled to mass spectrometry, Raman and Surface Enhanced Raman Scattering spectroscopies. Red dyes were extracted and analysed; the spectral analysis allowed identifying that the principal red dye in five samples is highly consistent with a commercial synthetic aniline, the azopigment PR57. Another monoazopigment, an orange benzimidazolone, was identified in two samples. A molecular model for the PR57/Ag surface interaction supports the idea that the dye mainly exposes to the metal the carboxylate and sulphonate groups; the red azopigment is oriented rather tilted with the two aromatic rings being almost coplanar to the surface. The electrostatic interactions are the main factor of the PR57/Ag layer interaction.}, added-at = {2019-12-04T03:57:35.000+0100}, author = {Campos-Vallette, M.M. and Rodriguez, M.J. and Chapanoff, M.A. and Clavijo, E. and Gomez-Jeria, J.S. and Aliaga, A.E. and Jara, G.P. and Celis, F. and Paipa, C. and Leyton, P.}, biburl = {https://www.bibsonomy.org/bibtex/2d676773cd0b81660736923d68007e8c0/dqcauchile}, doi = {10.1002/jrs.5147}, interhash = {b488734f509a7389b5ad430eafbd002a}, intrahash = {d676773cd0b81660736923d68007e8c0}, issn = {0377-0486}, journal = {Journal of Raman Spectroscopy}, keywords = {ag belts, colloids, dqcauchile dyes dyes, electrospray-ionization, enhanced fibers, ionization mapuche mass-spectrometry, nanoparticles, natural nylon organic pigments, raman-scattering, red sers, silver spectroscopy synthetic trariwe, works-of-art,}, number = 7, pages = {958-965}, publisher = {2017 John Wiley & Sons, Ltd.}, timestamp = {2019-12-04T03:58:17.000+0100}, title = {Sers Spectrum of Red Dyes in the Mapuche Belts from the Beginning of the Xxth Century}, type = {Journal Article}, url = {/brokenurl#<Go to ISI>://WOS:000405111500008}, volume = 48, year = 2017 }