1. Computational study of some triazole derivatives (un- and protonated forms) and their copper complexes in corrosion inhibition process
- Author
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Rachid Oukhrib, Brahim El Ibrahimi, Lahcen Bazzi, Souad El Issami, Khadija El Mouaden, Hassan Bourzi, Aziza Soumoue, and A. Jmiai
- Subjects
Aqueous solution ,Organic Chemistry ,Inorganic chemistry ,Triazole ,chemistry.chemical_element ,Protonation ,02 engineering and technology ,Interaction energy ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Copper ,0104 chemical sciences ,Analytical Chemistry ,Corrosion ,Inorganic Chemistry ,chemistry.chemical_compound ,chemistry ,Computational chemistry ,Reactivity (chemistry) ,Solvent effects ,0210 nano-technology ,Spectroscopy - Abstract
Three triazoles compounds used as corrosion inhibitors for copper in acidic medium, namely: 1,2,4 triazole (TR), 3-amino 1,2,4 triazole (3 ATR) and 3,5-diamino 1,2,4 triazole (3,5 DATR) have been studied theoretically in aim to investigate the correlation between its molecular reactivity indicators and the corresponding inhibition efficiency. All quantum chemical calculations at the B3LYP/6-31+G(d,p) method were performed with and without solvent effect. In the present paper, not only the neutral inhibitors has been studied, but also the first and the second protonation forms. A good correlation between theoretical and experimental data has been obtained both in gas and aqueous phases, notably for unprotonated inhibitors. Also, the interaction energy between inhibitors and copper has been calculated.
- Published
- 2016