An In–Depth exploration of pyrazole, imidazole, and triazole derivatives, showcasing their unparalleled effectiveness as dynamic organic corrosion inhibitors in aqueous environments

Organic compounds containing heteroatoms have been recognized for their significant ability to mitigate corrosion through adsorption facilitated by lone pair and π–electron interactions with metallic surfaces. Nitrogen–containing heterocycles, specifically pyrazole, imidazole, and triazole derivatives, have garnered considerable interest owing to their remarkable inhibitory efficacy under acidic conditions. This review thoroughly examines advances in nitrogen–based inhibitors, highlighting the correlation between molecular structure, adsorption characteristics, and corrosion prevention efficacy. The study integrates results from empirical approaches, including Electrochemical Impedance Spectroscopy (EIS) and Potentiodynamic Polarization (PDP), with theoretical insights derived from Density Functional Theory (DFT) and Molecular Dynamics (MD) simulations. This study correlates experimental results with quantum chemical parameters and adsorption models, elucidating the inhibition mechanisms of nitrogen–based heterocycles and establishing a valuable foundation for the rational design of effective and sustainable corrosion inhibitors.