International Journal of Biological, Physical and Chemical Studies

International Journal of Biological, Physical and Chemical Studies

Synthesis, Characterization and corrosion Inhibition Studies on Mn (II) and Co (II) Complexes Derived from 1-{(Z)-[(2-hydroxyphenyl) imino]methyl}naphthalen-2-ol in 1M HCl Solution

Yazarlar: Haruna, A., Rumah, M.M., Sani, U., Ibrahim, A.K.

Cilt 3 , Sayı 1 , 2021 , Sayfalar 09-18

Konular:-

DOI:10.32996/ijbpcs.2021.3.1.2

Anahtar Kelimeler:Schiff Base,Metal Complex,Corrosion,Weight Loss,Isotherms

Özet: Schiff base derived from the reaction of 2-amino phenol and 2-hydroxy-1-naphthaldehyde and its Co (II), and Mn (II) complexes have been synthesized and characterized by solubility test, melting point/ decomposition temperatures, molar conductance, IR and magnetic susceptibility. The number of ligands coordinated to the metal ion was determined using Job’s method of continuous variation. Their molar conductance values indicate that all the complexes are non-electrolytes. Magnetic moment values of the complexes showed that both Mn (II) and Co (II) are paramagnetic. The spectroscopic data of metal complexes indicated that the metal ions are complexed with azomethine nitrogen and deprotonated oxygen atom. Corrosion inhibition of the schiff base and Mn (II) and Co (II) complexes were evaluated using the weight loss method in a 0.1MHCl solution for copper metal. The inhibition efficiency increased with increasing inhibitors concentration. The negative values of Gibb’s free energy of adsorption (ΔGads) confirmed the spontaneity and physical adsorption of the inhibition process which is inconsistent with Langmuir adsorption isotherm.

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@article{2021, title={Synthesis, Characterization and corrosion Inhibition Studies on Mn (II) and Co (II) Complexes Derived from 1-{(Z)-[(2-hydroxyphenyl) imino]methyl}naphthalen-2-ol in 1M HCl Solution}, volume={3}, number={09–18}, publisher={International Journal of Biological, Physical and Chemical Studies}, author={Haruna, A.,Rumah, M.M.,Sani, U.,Ibrahim, A.K.}, year={2021} }
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Haruna, A.,Rumah, M.M.,Sani, U.,Ibrahim, A.K. (2021). Synthesis, Characterization and corrosion Inhibition Studies on Mn (II) and Co (II) Complexes Derived from 1-{(Z)-[(2-hydroxyphenyl) imino]methyl}naphthalen-2-ol in 1M HCl Solution (Vol. 3). Vol. 3. International Journal of Biological, Physical and Chemical Studies.
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Haruna, A.,Rumah, M.M.,Sani, U.,Ibrahim, A.K. Synthesis, Characterization and Corrosion Inhibition Studies on Mn (II) and Co (II) Complexes Derived from 1-{(Z)-[(2-Hydroxyphenyl) Imino]Methyl}naphthalen-2-Ol in 1M HCl Solution. no. 09–18, International Journal of Biological, Physical and Chemical Studies, 2021.
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