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Oyeneyin OE, Ojo ND, Ipinloju N, Agbaffa EB, Emmanuel AV. Investigation of the corrosion inhibition potentials of some 2-(4-(substituted)arylidene)-1H-indene-1,3-dione derivatives: density functional theory and molecular dynamics simulation. Beni-Suef Univ J Basic Appl Sci 2022. [DOI: 10.1186/s43088-022-00313-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Corrosion is a threat to material strength and durability. Electron-rich organic inhibitor may offer good corrosion mitigation potentials. In this work, anti-corrosion potentials of nine derivatives of 1H-indene-1,3-dione have been investigated using density functional theory (DFT) approach and molecular dynamics (MD) simulation. Chemical reactivity descriptors like energies of lowest unoccupied molecular orbital (ELUMO), highest occupied molecular orbital (EHOMO), electron affinity (A), ionization potential (I), energy gap (ΔEgap), global hardness (η), global softness (σ), electronegativity (χ), electrophilicity (ω), number of transferred electrons (ΔN) and back-donation (ΔEback-donation) were computed at DFT/B3LYP/6-31G(d) theoretical level. The local reactive sites and the charge partitioning on the compounds were studied using Fukui indices and molecular electrostatic potential (MEP) surface analysis. The adsorption behavior and the binding energy of the inhibitors on Fe (110) surface in hydrochloric acid solution were investigated using MD simulation.
Results
The high chemical reactivity, kinetic instability and good corrosion inhibition potentials demonstrated by the inhibitors are rationalized based on their high EHOMO, A, σ, ΔN, ΔEback-donation, and low ΔEgap, ELUMO, I and η. A wide difference of approximately 2.4–3.2 eV between the electronegativities of iron and the 1H-inden-1,3-diones suggests good charge transfer tendency from the latter to the low-lying vacant d-orbitals of iron. The heteroatoms (O and N) and the aromatic moieties are the nucleophilic sites on the inhibitors for effective adsorption on the metal surface as shown by condensed Fukui dual functions and MEP analysis. The MD simulation shows good interaction and strong binding energy between the inhibitor and Fe (110) surface.
Conclusions
Effective surface coverage and displacement of H3O+, Cl− and water molecules from Fe (110) surface by the inhibitors indicate good corrosion inhibition properties of the inden-1,3-diones. 2-((4,7-dimethylnaphthalen-1-yl)methylene)-1H-indene-1,3(2H)-dione display low energy gap, strongest binding interaction and most stabilized iron-inhibitor configuration, hence, the best anti-corrosion potential.
Graphical abstract
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Dong Y, Zhao C, Wang X, Xie M, Zhong X, Song R, Yu A, Wei J, Yao J, Shan D, Lv F, She G. Lvsiyujins A–G, new sesquiterpenoids, from Curcuma phaeocaulis Valeton root tuber and their preliminary pharmacological property assessment based on ADME evaluation, molecular docking and in vitro experiments. NEW J CHEM 2022. [DOI: 10.1039/d2nj00101b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Seven new sesquiterpenoids were isolated from the root tuber of C. phaeocaulis. A combination of calculations and experiments was used in structural analysis and biological activity exploration.
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Affiliation(s)
- Ying Dong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Chongjun Zhao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Xiuhuan Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Meng Xie
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Xiangjian Zhong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Ruolan Song
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Axiang Yu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Jing Wei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Jianling Yao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Dongjie Shan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Fang Lv
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Gaimei She
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
- Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
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