Vibrational spectral analysis of arcaine sulfate has been carried out using FT-IR, Raman, and SERS spectra. Raman and FT-IR spectra suggest protonation of the imino groups of the arcaine molecule at the expense of the proton from H 2 SO 4 . Analysis of SERS spectra shows that the molecule is adsorbe
FT-IR, FT-Raman and SERS spectra of anilinium sulfate
β Scribed by P. L. Anto; R. J. Anto; H. T. Varghese; C. Y. Panicker; D. Philip; A. G. Brolo
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 157 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0377-0486
- DOI
- 10.1002/jrs.2323
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β¦ Synopsis
Abstract
The FTβIR and FTβRaman spectra of anilinium sulfate were recorded and analyzed. The surfaceβenhanced Raman scattering (SERS) was recorded from a silver electrode. The vibrational wavenumbers of the compound have been computed using the HartreeβFock/6β31G* basis and compared with the experimental values. The molecule is adsorbed on the silver surface with the benzene ring in a tilted orientation. The presence of amino and sulfate group vibrations in the SERS spectrum reveal the interaction between amino and sulfate groups with the silver surface. The direction of the charge transfer contribution to SERS has been discussed from the frontier orbital theory. Copyright Β© 2009 John Wiley & Sons, Ltd.
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