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FT‐IR, FT‐Raman and SERS spectra of anilinium sulfate
Author(s) -
Anto P. L.,
Anto R. J.,
Varghese H. T.,
Panicker C. Y.,
Philip D.,
Brolo A. G.
Publication year - 2009
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.2323
Subject(s) - raman spectroscopy , chemistry , sulfate , raman scattering , molecule , adsorption , molecular vibration , benzene , spectral line , infrared , infrared spectroscopy , analytical chemistry (journal) , organic chemistry , optics , physics , astronomy
The FT‐IR and FT‐Raman spectra of anilinium sulfate were recorded and analyzed. The surface‐enhanced Raman scattering (SERS) was recorded from a silver electrode. The vibrational wavenumbers of the compound have been computed using the Hartree‐Fock/6‐31G* 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 © 2009 John Wiley & Sons, Ltd.