Bentiss, F. et al. published their research in Corrosion (Houston) in 2000 | CAS: 15420-02-7

2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole (cas: 15420-02-7) belongs to pyridine derivatives. Pyridine is diamagnetic and has a diamagnetic susceptibility of âˆ?8.7 × 10âˆ? cm3·molâˆ?.The molecular electric dipole moment is 2.2 debyes. The standard enthalpy of formation is 100.2 kJ·molâˆ? in the liquid phase and 140.4 kJ·molâˆ? in the gas phase. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.COA of Formula: C12H8N4O

2,5-bis(n-pyridyl)-1,3,4-oxadiazoles as corrosion inhibitors for mild steel in acidic media was written by Bentiss, F.;Lagrenee, M.;Traisnel, M.. And the article was included in Corrosion (Houston) in 2000.COA of Formula: C12H8N4O This article mentions the following:

The effect of new corrosion inhibitors-namely, 2,5-bis(n-pyridyl)-1,3,4-oxadiazoles (n-POX)-on the corrosion of mild steel in 1 M hydrochloric acid (HCl) and 0.5 M sulfuric acid (H2SO4) was investigated using weight loss measurements and electrochem. techniques such as polarization curves and electrochem. impedance spectroscopy. Results obtained revealed that these compounds were good inhibitors and behaved better in 1 M HCl than in 0.5 M H2SO4. Potentiodynamic polarization studies showed that n-POX are mixed-type inhibitors in 1 M HCl and anodic-type inhibitors in 0.5 M H2SO4. N-POX acted on the cathodic reaction without changing the mechanism of the hydrogen evolution reaction. The ability of the n-POX to inhibit the corrosion of mild steel was dependent on the position of the nitrogen atom on the pyridyl substituent. Surface anal. also were carried out to establish the mechanism of corrosion inhibition of mild steel in acidic solutions The adsorption of n-POX on the mild steel surface in both acidic media followed a Langmuir adsorption isotherm. In the experiment, the researchers used many compounds, for example, 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole (cas: 15420-02-7COA of Formula: C12H8N4O).

2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole (cas: 15420-02-7) belongs to pyridine derivatives. Pyridine is diamagnetic and has a diamagnetic susceptibility of âˆ?8.7 × 10âˆ? cm3·molâˆ?.The molecular electric dipole moment is 2.2 debyes. The standard enthalpy of formation is 100.2 kJ·molâˆ? in the liquid phase and 140.4 kJ·molâˆ? in the gas phase. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.COA of Formula: C12H8N4O

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem