European Journal of Chemistry 2014, 5(4), 563-569 | doi: | Get rights and content


Synthesis and corrosion inhibition evaluation of novel aminic nitrogen-bearing 1,2,4-triazole Schiff base compounds

Wael Abdel Gayed Ahmed Arafa (1) , Nady Hashem El-Sayed (2,*)

(1) Chemistry Department, Faculty of Science, Fayoum University, Fayoum City, 63514, Egypt
(2) Chemistry Department, Faculty of Science, Fayoum University, Fayoum City, 63514, Egypt
(*) Corresponding Author

Received: 23 Apr 2014 | Revised: 15 Jun 2014 | Accepted: 15 Jun 2014 | Published: 31 Dec 2014 | Issue Date: December 2014


Simple, effective, and high yield synthetic procedure for the synthesis of Schiff bases 5a-c is described. The scope of this reaction was investigated and noted that the presence of nickel(II) nitrate hexahydrate gave the corresponding Schiff bases in excellent yields. The inhibition effects of N-((1-phenyl-3-(thiophen-2-yl)-1H-pyrazol-5-yl)methylene)-4H-1,2,4-triazol-3-amine (PTP), 5c, have been investigated against the corrosion of copper in 0.5 M HCl solution. The investigations were accomplished using potentiodynamic polarization and electrochemical impedance measurements. Potentiodynamic polarization measurements indicated that the examined compound is mixed-type inhibitor. The results of electrochemical impedance indicated that the values of the charge transfer resistance and the inhibition efficiency tend to be increased by increasing the inhibitor concentration.


EIS; Copper; Inhibitor; Schiff base; Polarization; Heterocycles

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DOI: 10.5155/eurjchem.5.4.563-569.1083

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How to cite

Arafa, W.; El-Sayed, N. Eur. J. Chem. 2014, 5(4), 563-569. doi:10.5155/eurjchem.5.4.563-569.1083
Arafa, W.; El-Sayed, N. Synthesis and corrosion inhibition evaluation of novel aminic nitrogen-bearing 1,2,4-triazole Schiff base compounds. Eur. J. Chem. 2014, 5(4), 563-569. doi:10.5155/eurjchem.5.4.563-569.1083
Arafa, W., & El-Sayed, N. (2014). Synthesis and corrosion inhibition evaluation of novel aminic nitrogen-bearing 1,2,4-triazole Schiff base compounds. European Journal of Chemistry, 5(4), 563-569. doi:10.5155/eurjchem.5.4.563-569.1083
Arafa, Wael, & Nady Hashem El-Sayed. "Synthesis and corrosion inhibition evaluation of novel aminic nitrogen-bearing 1,2,4-triazole Schiff base compounds." European Journal of Chemistry [Online], 5.4 (2014): 563-569. Web. 30 May. 2020
Arafa, Wael, AND El-Sayed, Nady. "Synthesis and corrosion inhibition evaluation of novel aminic nitrogen-bearing 1,2,4-triazole Schiff base compounds" European Journal of Chemistry [Online], Volume 5 Number 4 (31 December 2014)

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