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Issue 77, 2017, Issue in Progress
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Targeted synthesis of cadmium(II) Schiff base complexes towards corrosion inhibition on mild steel

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Abstract

Three ligands L1 [N,N-dimethyl-N′-(1-pyridin-2-yl-ethylidene)-ethane-1,2-diamine], L2 [2-morpholino-N-(1-(pyridin-2-yl)ethylidene)ethanamine] and L3 [(2-(piperidin-1-yl)-N-(1-(pyridin-2-yl)ethylidene)ethanamine)] were introduced to prepare five Cd(II) Schiff base complexes [Cd(L1)2](ClO4)2 (1), [Cd(L1)(Cyanoacetate)(OAc)] (2), [Cd2(L1)2(N3)4] (3), [Cd(L2)(N3)2]n (4), [Cd2 (L3)2(N3)4]n (5) and the corrosion inhibition properties of these complexes on mild steel upon treatment with 15% HCl have been examined where azide complexes have shown corrosion inhibition properties as revealed by electrochemical impedance spectroscopy and potentiodynamic polarization. Field emission scanning electron microscopy (FE-SEM) images show that the mild steel surface was protected by cadmium complexes. Among azido complexes polymeric complexes have higher inhibition activity which was further explained using density functional theory. So finally a new bridge between nuclearity driven coordination inorganic chemistry and materials as well as corrosion engineering was established by this observation.

Graphical abstract: Targeted synthesis of cadmium(ii) Schiff base complexes towards corrosion inhibition on mild steel

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Publication details

The article was received on 04 Aug 2017, accepted on 08 Oct 2017 and first published on 16 Oct 2017


Article type: Paper
DOI: 10.1039/C7RA08633D
RSC Adv., 2017,7, 48569-48585
  • Open access: Creative Commons BY license
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    Targeted synthesis of cadmium(II) Schiff base complexes towards corrosion inhibition on mild steel

    M. Das, A. Biswas, B. K. Kundu, Shaikh M. Mobin, G. Udayabhanu and S. Mukhopadhyay, RSC Adv., 2017, 7, 48569
    DOI: 10.1039/C7RA08633D

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