Inhibition of API 5L X52 Pipeline Steel Corrosion in Acidic Medium by Gemini Surfactants: Electrochemical Evaluation and Computational Study

Table 7

The relation between the energy gap ΔE and the experimental inhibition efficiency (Ew %) of the synthesized corrosion inhibitors.

Inh.	Ew%	ΔE
		HF(3-21G)	MP2(3-21G)	AM1	MNDO	PM3
A312	94.87	3.331	3.343	3.346	3.343	3.344
A314	92.52	3.359	3.358	3.360	3.358	3.359
A316	89.69	3.361	3.366	3.362	3.366	3.363