1,2,3-Benzotriazole derivatives adsorption on Cu(1 1 1) surface: A DFT study
2017
Abstract In the context of copper corrosion passivation, the adsorption of benzotriazole ( BTAH ) and its derivatives: 5-Methyl, 5-Amine, 1-Amine, 1-Methyl on a Cu(1 1 1) surface was investigated using periodic density functional (DFT) calculations. The results were contrasted with experimental ASTM protocols. Adsorption of BTAH and radical ( BTA● ) forms, as well as solvent effect were evaluated. The Cu-N interaction provides stable complexes with adsorption over top sites. Radical forms yielded more stable complex. Their adsorption energies correlate with the substituent position and electronic features. And finally, a strong interaction was obtained when the charge transfer goes from surface to adsorbate.
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