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The electrosorption of 1,2,3‐triazole on gold as studied with surface‐enhanced Raman spectroscopy
Author(s) -
Jbarah Abdel Aziz,
Ihle Andreas,
Banert Klaus,
Holze Rudolf
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.1476
Subject(s) - raman spectroscopy , chemistry , cyclic voltammetry , perchlorate , surface enhanced raman spectroscopy , adsorption , triazole , molecule , crystallite , hydroxide , analytical chemistry (journal) , infrared spectroscopy , electrode , inorganic chemistry , electrochemistry , crystallography , ion , raman scattering , organic chemistry , physics , optics
The electrosorption of 1,2,3‐triazole on a polycrystalline gold electrode has been studied with surface‐enhanced Raman spectroscopy (SERS) and cyclic voltammetry. Vibrational wavenumbers were calculated for the 1 H ‐ and 2 H ‐1,2,3‐triazole at the B3LYP and MP2 levels using 6–31G* basis set. The data obtained from vibrational wavenumber calculations are used to analyze the SERS spectra. Results imply a tilted orientation of the triazole molecule both from acidic and neutral perchlorate solution with a nitrogen atom interacting directly with the gold surface. Strong adsorption in both cases is also evident from cyclic voltammograms of polycrystalline gold electrodes, indicating strong inhibition of gold hydroxide formation. Copyright © 2006 John Wiley & Sons, Ltd.