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Martínez J, Rodríguez MH, Ruvalcaba RM, Escobedo‐González R, Nicolás‐Vázquez MI. Can (
S
)‐Stereoisomers of Perezone and Its Derivatives Show Similar Activity to Its (
R
)‐Stereoisomers? A Computational Characterization and Docking Study. ChemistrySelect 2021. [DOI: 10.1002/slct.202102539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Joel Martínez
- Facultad de Ciencias Químicas Universidad Autónoma de San Luis Potosí San Luis Potosí 78210 México
| | - Maricarmen Hernández Rodríguez
- Laboratorio de Cultivo Celular Escuela Superior de Medicina Instituto Politécnico Nacional Plan de San Luis y Díaz Mirón s/n Ciudad de México México
| | - René Miranda Ruvalcaba
- Departamento de Ciencias Químicas Facultad de Estudios Superiores Cuautitlán Campo 1 Universidad Nacional Autónoma de México Avenida 1o de Mayo s/n, Colonia Santa María las Torres Cuautitlán Izcalli Estado de México 54740 México
| | - René Escobedo‐González
- Departamento de Mantenimiento Industrial y Nanotecnología Universidad Tecnológica de Ciudad Juárez Av. Universidad Tecnológica No. 3051, Col. Lote Bravo II, Cd. Juárez Chihuahua 32695 México
| | - María Inés Nicolás‐Vázquez
- Departamento de Ciencias Químicas Facultad de Estudios Superiores Cuautitlán Campo 1 Universidad Nacional Autónoma de México Avenida 1o de Mayo s/n, Colonia Santa María las Torres Cuautitlán Izcalli Estado de México 54740 México
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Gad El-Hak ASM, Mohammed AAK, Abdel Hakiem AF, Mahfouz RM. Molecular conformation, vibrational spectroscopic and NBO analysis of atenolol and atenolol-hydrochlorothiazide cocrystals. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 222:117200. [PMID: 31176161 DOI: 10.1016/j.saa.2019.117200] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 04/25/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
Geometry optimization of atenolol (ATN) in the gas phase was carried out using B3LYP-D3BJ/6-31++G(d,p), CAM-B3LYP/6-31++G(d,p) and M06-2X/6-31++G(d,p) levels of DFT. The computed structural parameters were compared with the data obtained by single crystal X-ray diffraction experiment. Chemical reactivity (electronegativity, electrophilicity, hardness, chemical softness and chemical potential) was predicted with the help of HOMO- LUMO energy values. Experimental FT-IR was recorded and the calculated values were also analyzed using the same level of DFT. A complete vibrational spectrum was made to analyze the potential energy distribution (PED). Stability of the molecule arising from hyperconjugative interaction was analyzed by the natural bond orbital (NBO) analysis. The molecular electrostatic potential map was used to detect the possible electrophilic and nucleophilic sites in ATN molecule. Cocrystallization of atenolol-hydrochlorothiazide (ATN-HCTZ) was performed and the structure was analyzed by powder X-ray diffraction. NBO analysis was carried out on the ATN-HCTZ cocrystal for the elucidation of inter and intra-molecular hydrogen bonding interactions in the structure. Atenolol interaction with human serum albumin (HSA) was investigated by a molecular docking study.
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Affiliation(s)
| | - Ahmed A K Mohammed
- Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Ahmed F Abdel Hakiem
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Refaat M Mahfouz
- Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt.
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Internal rotation and intramolecular hydrogen bonding in thiosalicylamide: gas phase electron diffraction study supported by quantum chemical calculations. Struct Chem 2019. [DOI: 10.1007/s11224-019-01369-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Manimaran S, SambathKumar K, Gayathri R, Raja K, Rajkamal N, Venkatachalapathy M, Ravichandran G, Lourdu EdisonRaj C. Medicinal Plant Using Ground State Stabilization of Natural Antioxidant Curcumin by Keto-Enol Tautomerisation. NATURAL PRODUCTS AND BIOPROSPECTING 2018; 8:369-390. [PMID: 29934731 PMCID: PMC6109441 DOI: 10.1007/s13659-018-0170-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 05/23/2018] [Indexed: 06/08/2023]
Abstract
Curcumin is a medicinal agent that exhibits anti-cancer properties and bioactive pigment in Turmeric has a huge therapeutic value. It has a keto-enol moiety that gives rise to many of its chemical properties. A recent study has shown that keto-enol tautomerisation at this moiety is implicated the effect of curcumin. The tautomerisation of curcumin in methanol, acetone and acetonitrile are used in nuclear magnetic resonance (1H, 13C) spectroscopy. It was characterized using UV, IR and Raman spectral values. The molecular electrostatic potential surface of the Curcumin has been visualized in electropositive potential in the region of the CH3+ group and most electronegative potential in the two oxygen atom has very strong binding group. In the following, the modality of structural and thermo dynamical parameters, electrophilicity (ω), chemical potential (μ), chemical hardness (η) and electronic charge transfer confirms the local reactivity. The rate constant of tautomerisation of curcumin shows strong temperature dependence. Molecular electrostatic potential and Temperature dependence of various thermodynamic properties like [Formula: see text] is increase with increase in temperature for monomer and dimer of various electrical fields.
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Affiliation(s)
- S Manimaran
- P.G&Research Department of Physics, Thanthai Hans Roever College (Autonomous), Perambalur, Tamil Nadu, 621220, India.
| | - K SambathKumar
- Post Graduate and Research Department of Physics, (NANO Science Divisions), A. A. Govt. Arts College, Villupuram, Tamil Nadu, 605602, India
| | - R Gayathri
- Post Graduate and Research Department of Physics, Cauvery College for Women, Tiruchirappalli, Tamil Nadu, India
| | - K Raja
- Post Graduate and Research Department of Physics, Dr. R. K. Shanmugam College of Arts & Science, Kallakurichi, Tamil Nadu, 606213, India
| | - N Rajkamal
- Post Graduate and Research Department of Physics, Thiru. A. Govindasamy Govt Arts College, Tindivanam, Tamil Nadu, 604002, India
| | - M Venkatachalapathy
- Post Graduate and Research Department of Physics, Thiru. A. Govindasamy Govt Arts College, Tindivanam, Tamil Nadu, 604002, India
| | - G Ravichandran
- Post Graduate and Research Department of Chemistry, A. A. Govt. Arts College, Villupuram, Tamil Nadu, 605602, India
| | - C Lourdu EdisonRaj
- Post Graduate and Research Department of Chemistry, A. A. Govt. Arts College, Villupuram, Tamil Nadu, 605602, India
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Cecily Mary Glory D, Sambathkumar K, Madivanane R, Velmurugan G, Gayathri R, Nithiyanantham S, Venkatachalapathy M, Rajkamal N. Optical, Fluorescence with quantum analysis of hydrazine (1, 3- Dinitro Phenyl) by DFT and Ab initio approach. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.12.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Latha B, Kumaresan P, Nithiyanantham S, Sampathkumar K. HOMO-LUMO analysis of multi walled carbon nanotubes doped Tetrafluoro Phthalate crystals for nonlinear optical applications. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.09.097] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Cecily mary glory D, Sambathkumar K, Madivanane R, Rajkamal N, Venkatachalapathy M. RETRACTED: Enhancement of atom transfer in different surface chemistry of hydrogenated vs. fluorinated tribromobenzene on Ag(111) and Cu(111). J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.07.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Latha B, Kumaresan P, Nithiyanantham S, Sampathkumar K. Spectroscopic, Homo-Lumo and NLO studies of tetra fluoro phthalate doped Coumarin crystals using DFT method. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.04.078] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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