Use of a Metallic Complex Derived from Curcuma Longa as Green Corrosion Inhibitor for Carbon Steel in Sulfuric Acid

Figure 12

Optimized molecular structure of protonated SnX molecule and HOMO and LUMO orbitals of the Sn-metallic complex, SnX molecule. Atomic colours represent gray (C), white (H), red (O), blue (N), and dark-blue-square (Sn).