Anti-corrosion studies of a tryptamine Schiff base ligand Olubunmi A. Adewusi 1 , Nathaniel D. Ojo 2 , Oluwayemi O. Onawumi 3 1 Lagos State University, Lagos, Nigeria, 2 University of Ibadan, Oyo, Nigeria, 3 Ladoke Akintola University of Technology, Nigeria Corrosion is a process of degradation of a material caused by a chemical or electrochemical reaction with its environment. To some degree, all environments are corrosive and contribute greatly to material failure, affecting safe and efficient operation of equipment and structures with the implication of big economic loss 1 . Corrosion inhibitors are chemical substances or combination of substances which when added in a corrosive environment in small concentrations effectively prevents or reduce corrosion without significant reaction with the components of the environment. They are used in oil and gas exploration and production, chemical manufacturing, water treatment, petroleum refineries and product additive industry. Due to the ability of Schiff bases to bind with metals, scientists have carried out many researches on their corrosion inhibition properties [1-3]. In this work, corrosion inhibition studies were done for a four-coordinate tryptamine Schiff base ligand with chemical formula C 18 H 18 N 2 O 2 using a computational process, Density Functional Theory 4 . Quantum chemical parameters like Energy of highest occupied molecular orbital (E HOMO ), Energy of lowest unoccupied molecular orbital (E LUMO ), Energy gap (ΔE), Electron Affinity (EA), Ionization Potential (IP), softness (σ), chemical hardness (η), electronegativity (χ), and Electron back donation (ΔEb-d) were used to predict the corrosion inhibition potentials. The data obtained gave an indication of the Schiff base inhibition potential, making it a good candidate for corrosion inhibitor designs. The results obtained will be shared during the meeting [4,5]. References 1. Suraj, B., Balasaheb, U., Jadhav, M., Lonkar, P., & Nana, V. 2020. A role of Schiff base and their metal complexes used as corrosion inhibitor in different corrosive medium. Journal of Emerging Technologies and Innovative Research (JETIR) jetir. org. , 7(167).Dariva, G., & Galio, F. 2014. Corrosion Inhibitors – Principles, Mechanisms and Applications. 365-370. 2. Dalia, M., Ahmed, K., Al‑Baghdadi, S., Al‑Amiery, A., Kadhim, A., Gaaz, T., Kadhum, A., & Bakar, M. 2018. Experimental and theoretical studies of Schiff bases as corrosion inhibitors, (Chemical central journal), 12(7), pages 1-3. 3. Oluwatoba Oyeneyin, Daniel Akerele, Nathanael Ojo, Ogunyemi Oderinlo. 2021. Corrosion Inhibitive Potentials of some 2H-1-benzopyran-2-one Derivatives-DFT Calculations. Biointerface Research in Applied Chemistry. 11(6). 4. Nelson Okpako Obi-Egbedi, Nathanael Damilare Ojo. Computational studies of the corrosion inhibition potentials of some 1H-imidazo[4,5-F][1,10]phenanthroline derivatives. 2015. 5. Journal of Science Research . 14 (1). 50-56.
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