Potential‐dependent SERS profile of orthanilic acid on silver electrode | Zendy

Anto P. L. | Zendy; Panicker C. Yohannan | Zendy; Varghese Hema Tresa | Zendy; Philip Daizy | Zendy

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Potential‐dependent SERS profile of orthanilic acid on silver electrode

Author(s) -

Anto P. L.,

Panicker C. Yohannan,

Varghese Hema Tresa,

Philip Daizy

Publication year - 2006

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.1547

Subject(s) - raman scattering , raman spectroscopy , electrode , chemistry , ab initio , analytical chemistry (journal) , electrode potential , molecule , ab initio quantum chemistry methods , molecular physics , electrochemistry , optics , organic chemistry , physics

FT‐IR and FT‐Raman spectra of orthanilic acid were recorded and analyzed. Surface‐enhanced Raman scattering (SERS) spectrum was recorded on a silver electrode surface. The vibrational wavenumbers were computed by the ab initio method using HF/6–31G* basis and they were found to be in good agreement with the experimental values. Potential dependence of the SERS profile was studied. The profile was prominent at electrode potentials of −0.3 and −0.8 V. The selective enhancement of different bands showed a change in orientation of the molecule on the silver surface. Copyright © 2006 John Wiley & Sons, Ltd.

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