TY - EJOU AU - Wang, Fengjuan AU - Wu, Shengping AU - Jiang, Jinyang TI - Investigation on Purine Corrosion Inhibitions via Quantum Chemical Calculation T2 - Computer Modeling in Engineering \& Sciences PY - 2018 VL - 116 IS - 1 SN - 1526-1506 AB - Corrosion inhibition performances of three purine derivatives were investigated systematically by employing DFT and molecular modeling. The relationship between macroscopic inhibition efficiency and quantum chemical properties was discussed from multiple perspectives, based on frontier orbital theory, and Fukui function theories. Comparative experimental and theoretical studies were taken, indicating the inhibition efficiency could be analyzed in the order of guanine <2,6-diaminopurine <2,6-dithiopurine. The sulphur atom (S5) was validated to be the most susceptible site for electrophile via quantitative surface analysis. KW - Acid solutions KW - acid inhibition KW - DFT calculation KW - mild steel KW - modelling studies DO - 10.31614/cmes.2018.03834