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Tanhaei R, Beyramabadi SA, Behmadi H. Geometry, Tautomerism, and Noncovalent Interaction of Bentiromide with a Carbon-Nanotube and γ-Fe2O3 Nanoparticles: A Quantum Mechanical Study. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619060155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Beyramabadi SA, Khadivjam T, Gonabadi A, Morsali A, Gharib A, Khashi M, Khorsandi-Chenarboo M. A DFT study on the geometry, tautomerism and noncovalent interactions of the Mepivacaine drug with the pristine SWCNT and –COOH functionalized SWCNT. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2017. [DOI: 10.1142/s0219633617500080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
The Mepivacaine drug is used as a local anesthetic in dentistry, which could exist as three different tautomers. Herein, geometry, energy behavior as well as tautomerization of these tautomers have been investigated by employing density functional theory (DFT) and considering the solvent effects with the polarizable continuum model (PCM) model. The most stable tautomer of the Mepivacaine has a carbonyl and an –NH amine groups in its structure. The frontier orbitals and the energy gap of the molecule have been computed using the natural bond orbital analysis (NBO). Also, the armchair (5,5) single wall carbon nanotube (SWCNT) was used for investigation of the noncovalent interactions of the Mepivacaine molecule with the pristine SWCNT and the –COOH functionalized SWCNT in several forms. Geometries of the possible forms have been optimized. The most stable form for noncovalent interactions of the drug with each of the pristine and functionalized SWCNTs have been determined. The intermolecular H-bonds have essential role in energy behavior of the noncovalent interactions between the Mepivacaine drug and the investigated SWCNTs.
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Affiliation(s)
- S. Ali Beyramabadi
- Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Tina Khadivjam
- Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Atoosa Gonabadi
- Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Ali Morsali
- Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Azar Gharib
- Young Researchers and Elite Club, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Maryam Khashi
- Young Researchers and Elite Club, Mashhad Branch, Islamic Azad University, Mashhad, Iran
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Parameswari A, Premkumar S, Premkumar R, Milton Franklin Benial A. Surface enhanced Raman spectroscopy and quantum chemical studies on glycine single crystal. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.03.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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