Abstract The dependence of the anticorrosion properties of benzylated N-arylnicotinamides upon corrosion of 08kp steel in 3M HCl at 80 ° C on their energy characteristics was investigated. For cations of these structures, the optimized geometries and quantum-chemical parameters of ENOMO, ELUMO, and ΔE = ELUMO-EHOMO were calculated and the dependences of the reduced corrosion inhibition coefficient [γ] on ΔE and eΔE with correlation coefficients of 0.96 and 0.99, respectively, are presented. The structure of inhibitors significantly affects the corrosion rate, which is observed when comparing their calculated optimized geometries.
Keywords Benzylated N-arylnicotinamides, corrosion, reduced corrosion inhibition coefficient, energy characteristics, optimized geometries.