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Unveiling the nature of interactions in the supramolecular complex of Cucurbit [7-8] uril with ascorbic acid, dopamine and uric acid for biosensing applications: a computational study. Struct Chem 2022. [DOI: 10.1007/s11224-022-01945-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Litim A, Belhocine Y, Benlecheb T, Ghoniem MG, Kabouche Z, Ali FAM, Abdulkhair BY, Seydou M, Rahali S. DFT-D4 Insight into the Inclusion of Amphetamine and Methamphetamine in Cucurbit[7]uril: Energetic, Structural and Biosensing Properties. Molecules 2021; 26:7479. [PMID: 34946564 PMCID: PMC8705717 DOI: 10.3390/molecules26247479] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/04/2021] [Accepted: 12/08/2021] [Indexed: 11/17/2022] Open
Abstract
The host-guest interactions of cucurbit[7]uril (CB[7]) as host and amphetamine (AMP), methamphetamine (MET) and their enantiomeric forms (S-form and R-form) as guests were computationally investigated using density functional theory calculations with the recent D4 atomic-charge dependent dispersion corrections. The analysis of energetic, structural and electronic properties with the aid of frontier molecular orbital analysis, charge decomposition analysis (CDA), extended charge decomposition analysis (ECDA) and independent gradient model (IGM) approach allowed to characterize the host-guest interactions in the studied systems. Energetic results indicate the formation of stable non-covalent complexes where R-AMP@CB[7] and S-AMP@CB[7] are more stable thermodynamically than R-MET@CB[7] and S-MET@CB[7] in gas phase while the reverse is true in water solvent. Based on structural analysis, a recognition mechanism is proposed, which suggests that the synergistic effect of van der Waals forces, ion-dipole interactions, intermolecular charge transfer interactions and intermolecular hydrogen bonding is responsible for the stabilization of the complexes. The geometries of the complexes obtained theoretically are in good agreement with the X-ray experimental structures and indicate that the phenyl ring of amphetamine and methamphetamine is deeply buried into the cavity of CB[7] through hydrophobic interactions while the ammonium group remains outside the cavity to establish hydrogen bonds with the portal oxygen atoms of CB[7].
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Affiliation(s)
- Abdelkarim Litim
- Laboratory of Sensors, Instrumentations and Process (LCIP), University of Abbes Laghrour, Khenchela 40000, Algeria; (A.L.); (Z.K.)
| | - Youghourta Belhocine
- Department of Petrochemical and Process Engineering, Faculty of Technology, 20 August 1955 University of Skikda, El Hadaik Road, Skikda 21000, Algeria;
| | - Tahar Benlecheb
- Laboratory of Sensors, Instrumentations and Process (LCIP), University of Abbes Laghrour, Khenchela 40000, Algeria; (A.L.); (Z.K.)
| | - Monira Galal Ghoniem
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia;
| | - Zoubir Kabouche
- Laboratory of Sensors, Instrumentations and Process (LCIP), University of Abbes Laghrour, Khenchela 40000, Algeria; (A.L.); (Z.K.)
| | - Fatima Adam Mohamed Ali
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia;
| | - Babiker Yagoub Abdulkhair
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia;
- Chemistry Department, Sudan University of Science and Technology (SUST), Khartoum 13311, Sudan
| | | | - Seyfeddine Rahali
- Department of Chemistry, College of Science and Arts, Qassim University, Ar Rass, Saudi Arabia
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