Electronic spectra and DFT calculations of some pyrimido[1,2-a]benzimidazole derivatives

4-Phenylpyrimidine monolayer protection of a copper surface from salt corrosion

“…19,20 Pyrimidine molecules containing N heteroatoms exhibited favourable protection for copper against corrosion. [21][22][23][24][25] In addition, 2-mercaptopyrimidine demonstrated a high efficiency for inhibiting the corrosion of copper in H 2 SO 4 media. 26 4-Phenylpyrimidine (4-PPM) molecules as shown in Scheme 1 have successfully suppressed the corrosion of cold rolled steel in HCl media.…”