Biferrocenyl Schiff bases as efficient corrosion inhibitors for an aluminium alloy in HCl solution: a combined experimental and theoretical study

Nazir, Uzma; Akhter, Zareen; Asghar, Muhammad Adeel; Kanwal, Sehrish; Butt, Tehmeena Maryum; Sani, Asma; Liaqat, Faroha; Hussain, Rizwan; Shah, Faiz Ullah

doi:10.1039/c9ra10692h

Cited by 48 publications

(23 citation statements)

References 54 publications

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“…Chemical integrations show the singlet that appeared at (2.50. ppm) related to azomethine. Noticeable overlap in signals due to the paramagnetic of Iron and dinuclear species that formed in solution which lead to increasing the 1 H-NMR spectra complexity 25 . Cobalt Schiff base complex [(CoCl 2 ) 2 L] was studied using 1 H-NMR spectroscopy that confirm the formation of fully condensed Schiff base complex.…”

Section: Equation 2 Ft-ir Spectramentioning

confidence: 99%

Syntheses, Structures and Biological Activity of Some Schiff Base Metal Complexes

2022

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Four new binuclear Schiff base metal complexes [(MCl2)2L] {M = Fe 1, Co 2, Cu 3, Sn 4, L = N,N’-1,4-Phenylenebis (methanylylidene) bis (ethane-1,2-diamine)} have been synthesized using direct reaction between proligand (L) and the corresponding metal chloride (FeCl2, CoCl2, CuCl2 and SnCl2). The structures of the complexes have been conclusively determined by a set of spectroscopic techniques (FT-IR, 1H-NMR, and mass spectra). Finally, the biological properties of the complexes have been investigated with a comparative approach against different species of bacteria (E. coli G-, Pseudomonas G-, Bacillus G+, Staphylococcus G+, and Streptococcus G+).

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Section: Equation 2 Ft-ir Spectramentioning

confidence: 99%

Syntheses, Structures and Biological Activity of Some Schiff Base Metal Complexes

2022

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“…The results of the characterization of synthetic products using FTIR obtained a unique absorption at a wavenumber of 1583 cm -1 [14], which is the absorption of the functional group -C = N-. This indicates that 1-{4-[(4-hydroxy-3-methoxy-benzylidene)-amino]-phenyl)ethanone is formed.…”

Section: Product Characterization 331 Characterization Using Ftirmentioning

confidence: 99%

“…The iron ion will interact with the PEB and (π) bonds in the Schiff base compound form ion-dipoles, which will envelop the ferrous metal. So that the corrosion rate will be inhibited by the interaction that occurs [14]. The inhibition efficiency of Schiff 1-{4 -[(4-hydroxy-3-methoxybenzylidene) -amino] -phenyl) -ethanone in hydrochloric acid solution is 23,11-86,16%.…”

Section: Corrosion Inhibitorsmentioning

confidence: 99%

Synthesis of Schiff Base Compounds from Vanillin and p-Aminoacetophenone Using Lime Juice as a Natural Acid Catalyst and Their Utilization as Corrosion Inhibitors

Ma’rufah¹,

Hanapi²,

Ningsih³

et al. 2021

Advances in Social Science, Education and Humanities Research

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Schiff bases can be synthesized by reacting Vanillin and p-aminoacetophenone using a natural acid catalyst such as lime juice (Citrus aurantifolia.) with the grinding method. The purposes of this study were to determine the characterization. The yield of synthesized compounds calculated and also determined the physical properties such as color and melting point. The product also characterized using NaOH reaction. Further characterization was carried out using FTIR and 1 H-NMR. The synthesized compound is a yellow solid, slightly soluble in water, and has a melting point of 160-162 ⁰C. The Mass obtained is 1,9459 g, with a percentage yield of 94,45%. The compound 1-{4 -[(4-hydroxy-3-methoxybenzylidene) -amino] -phenyl) -etanone reacts with NaOH to form a bright yellow color. This compound has an imine bond (-C = N-), which showed in the wavenumber 1583 cm -1 . 1 H-NMR characterization showed a typical chemical shifting of HC = N-at 8,5 ppm. The inhibition efficiency of these compounds ranged from 23,11-86,16%.

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“…In our last work, we synthesized organic anlogoues of Schiff bases and ferrocenyl Schiff bases and investigated them as efficient corrosion inhibitors for aluminium alloy AA2219-T6. 52,53 Following the same research line here in this piece of work, we aimed at the synthesis of ferrocenyl Schiff bases by varying the alkyl chain length in their structure and their corrosion inhibition efficiency in an acidic medium. The main advantage of the synthesis of these molecules lies in the fact that they were easily prepared and showed very good inhibition efficiency towards alloy substrate.…”

Section: Introductionmentioning

confidence: 99%

Corrosion inhibition studies of ferrocenyl Schiff bases in a mild acidic medium through experimental methods and DFT calculations

et al. 2022

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In this research, we report a study on the synthesis of a new series of ferrocene based Schiff bases 4,4’-(((((methane-1,2-diylbis(oxy))bis(4,1-phenylene))bis(methaneylylidene))bis(azan eylylidene))bisferrocene FcA, 4,4’-((((methane-1,2-diylbis(oxy))bis(2-methoxy-1,4pheny lene))bis(methaneylylidene))bis(azaneylylidene))bisferrocene FcB and 4,4’ ((((methane-1,2-diylbis(oxy))bis(2-ethoxy-1,4-phenylene))bis(methaneylylidene))bis(azaneylylidene))bis ferrocene FcC....

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Biferrocenyl Schiff bases as efficient corrosion inhibitors for an aluminium alloy in HCl solution: a combined experimental and theoretical study

Abstract: The anticorrosion activity of biferrocenyl Schiff bases on AA2219-T6 in acidic medium were studied using Tafel polarization, electrochemical impedance spectroscopy, weight loss analysis, FT-IR spectroscopy and scanning electron microscopic technique.

Cited by 48 publications

References 54 publications

Syntheses, Structures and Biological Activity of Some Schiff Base Metal Complexes

Syntheses, Structures and Biological Activity of Some Schiff Base Metal Complexes

Synthesis of Schiff Base Compounds from Vanillin and p-Aminoacetophenone Using Lime Juice as a Natural Acid Catalyst and Their Utilization as Corrosion Inhibitors

Corrosion inhibition studies of ferrocenyl Schiff bases in a mild acidic medium through experimental methods and DFT calculations

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