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Badiger KB, Khatavi S, Kamanna K. Expedite Greener Method Synthesis of Pyrano[2,3-d]Pyrimidine-2,4,7-Triones Accelerated by Ultrasound Irradiation. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2027790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Krishnappa B. Badiger
- Peptide and Medicinal Chemistry Research Laboratory, Department of Chemistry, Rani Channamma University, Belagavi, India
| | - Santosh Khatavi
- Peptide and Medicinal Chemistry Research Laboratory, Department of Chemistry, Rani Channamma University, Belagavi, India
| | - Kantharaju Kamanna
- Peptide and Medicinal Chemistry Research Laboratory, Department of Chemistry, Rani Channamma University, Belagavi, India
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Tighadouini S, Roby O, Mortada S, Lakbaibi Z, Radi S, Al-Ali A, Faouzi MEA, Ferbinteanu M, Garcia Y, Al-Zaqri N, Zarrouk A, Warad I. Crystal structure, physicochemical, DFT, optical, keto-enol tautomerization, docking, and anti-diabetic studies of (Z)-pyrazol β-keto-enol derivative. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131308] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Boshaala A, Said MA, Assirey EA, Alborki ZS, AlObaid AA, Zarrouk A, Warad I. Crystal structure, MEP/DFT/XRD, thione ⇔ thiol tautomerization, thermal, docking, and optical/TD-DFT studies of (E)-methyl 2-(1-phenylethylidene)-hydrazinecarbodithioate ligand. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130461] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Exo⇔ Endo Isomerism, MEP/DFT, XRD/HSA-Interactions of 2,5-Dimethoxybenzaldehyde: Thermal, 1BNA-Docking, Optical, and TD-DFT Studies. Molecules 2020; 25:molecules25245970. [PMID: 33339423 PMCID: PMC7767059 DOI: 10.3390/molecules25245970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/08/2020] [Accepted: 12/11/2020] [Indexed: 11/16/2022] Open
Abstract
The exo⇔endo isomerization of 2,5-dimethoxybenzaldehyde was theoretically studied by density functional theory (DFT) to examine its favored conformers via sp2–sp2 single rotation. Both isomers were docked against 1BNA DNA to elucidate their binding ability, and the DFT-computed structural parameters results were matched with the X-ray diffraction (XRD) crystallographic parameters. XRD analysis showed that the exo-isomer was structurally favored and was also considered as the kinetically preferred isomer, while several hydrogen-bonding interactions detected in the crystal lattice by XRD were in good agreement with the Hirshfeld surface analysis calculations. The molecular electrostatic potential, Mulliken and natural population analysis charges, frontier molecular orbitals (HOMO/LUMO), and global reactivity descriptors quantum parameters were also determined at the B3LYP/6-311G(d,p) level of theory. The computed electronic calculations, i.e., TD-SCF/DFT, B3LYP-IR, NMR-DB, and GIAO-NMR, were compared to the experimental UV–Vis., optical energy gap, FTIR, and 1H-NMR, respectively. The thermal behavior of 2,5-dimethoxybenzaldehyde was also evaluated in an open atmosphere by a thermogravimetric–derivative thermogravimetric analysis, indicating its stability up to 95 °C.
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Guerraoui A, Djedouani A, Jeanneau E, Boumaza A, Alsalme A, Zarrouk A, Salih KS, Warad I. Crystal structure and spectral of new hydrazine-pyran-dione derivative: DFT enol↔hydrazone tautomerization via zwitterionic intermediate, hirshfeld analysis and optical activity studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128728] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Titi A, Warad I, Tillard M, Touzani R, Messali M, El Kodadi M, Eddike D, Zarrouk A. Inermolecular interaction in [C6H10N3]2[CoCl4] complex: Synthesis, XRD/HSA relation, spectral and catecholase catalytic analysis. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128422] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Said MA, Qasem HA, Alzahrani SO, Zarrouk A, Warad I. Synthesis and XRD of neutral NiL complex using unsymmetrical ONNO tetradentate schiff base: Hirschfeld, spectral, DFT and thermal analysis. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1762870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Musa A. Said
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia
| | - Hamza A. Qasem
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia
| | - Seraj O. Alzahrani
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia
| | - Abdelkader Zarrouk
- Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, Mohammed V University, Agdal-Rabat, Morocco
| | - Ismail Warad
- Department of Chemistry and Earth Sciences, Qatar University, Doha, Qatar
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Al-Zaqri N, Khatib T, Alsalme A, Alharthi FA, Zarrouk A, Warad I. Synthesis and amide imidic prototropic tautomerization in thiophene-2-carbohydrazide: XRD, DFT/HSA-computation, DNA-docking, TG and isoconversional kinetics via FWO and KAS models. RSC Adv 2020; 10:2037-2048. [PMID: 35494597 PMCID: PMC9048253 DOI: 10.1039/c9ra09831c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 12/24/2019] [Indexed: 11/21/2022] Open
Abstract
Thiophene-2-carbohydrazide as a novel small-molecule amide tautomer has been synthesized with an acceptable yield under microwave radiation (MW) conditions. The amide imidic thiophene-2-carbohydrazide prototropic tautomerization via single proton intramigration was computed using the DFT B3LYP/6-311G(d,p) level of theory. The endo-isomer amide structure of thiophene-2-carbohydrazide was proved by XRD and is considered to be the kinetically favored isomer. The DFT-structure parameters were compared to their corresponding XRD-experimental parameters. Several H-bond interactions were detected in the crystal lattice experimentally using the XRD-packing model then correlated to MEP and HSA calculations. The manual and calculated electronic parameters such as, frontier molecular orbital energies, excitation energy, absorption, dipole moment, DOS, GRD quantum parameters and TD-SCF/B3LYP were DFT computed. The thiophene-2-carbohydrazide isomers together with their prototropic (E)/(Z)-thiophene-2-carbohydrazonic acid tautomers were docked against 1BNA DNA. FWO and KAS isoconversional kinetic methods were applied, and the thermal behavior and estimated Ea–α relations were determined. Thiophene-2-carbohydrazide as a novel small-molecule amide tautomer has been synthesized with an acceptable yield under microwave radiation (MW) conditions.![]()
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Affiliation(s)
- Nabil Al-Zaqri
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Tamer Khatib
- Department of Energy Engineering and Environment, An-Najah National University Nablus 97300 Palestine
| | - Ali Alsalme
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Fahad A Alharthi
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Abdelkader Zarrouk
- Laboratory of Materials, Nanotechnology and Environment, Faculty of Science, Mohammed V University 4Av. Ibn Battuta, B. P. 1014 Rabat Morocco
| | - Ismail Warad
- Department of Chemistry and Earth Sciences, Qatar University PO Box 2713 Doha Qatar .,Department of Chemistry, Science College, An-Najah National University P. O. Box 7 Nablus Palestine
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Altowyan MS, Barakat A, Al-Majid AM, Ghabbour HA, Zarrouk A, Warad I. Vibrational spectral analysis, XRD-structure, computation, exo⇔endo isomerization and non-linear optical crystal of 5-((5-chloro-1 H-indol-2-yl)methylene)-1,3-diethyl-2-thioxodihy-dropyrimidine-4,6 (1 H,5 H)-dione. BMC Chem 2019; 13:11. [PMID: 31384760 PMCID: PMC6661825 DOI: 10.1186/s13065-019-0524-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 01/16/2019] [Indexed: 11/25/2022] Open
Abstract
This work deals with the synthesis and characterization of the novel 5-((5-chloro-1H-indol-2-yl)methylene)-1,3-diethyl-2-thioxodihydro-pyrimidine-4,6(1H,5H)-dione π-bridge (D–A–D) donor–acceptor–donor compound. Its exo-isomer structure has been proven by XRD-single-crystal analysis for the first time. The IR, UV–Vis., MS, CHN-, 1H and 13C NMR analysis were also carried out. The DFT-optimized structural-parameters were matched with the XRD-crystallographic data. The experimental-XRD-interactions in the lattice were compared to the computed Hirshfeld analysis (HSA), MEP map and Mulliken charge population. The DFT/6-311G(d) calculations like IR/B3LYP, TD-SCF, HOMO–LUMO, GRD and GIAO-NMR have been compared to their corresponding experimental parameters. Non-linear optical (NLO) crystal theoretical-analysis was carried out then compared to urea reference. The compound thermal activity was evaluated in an open-atmosphere by TG/DTG analysis.![]()
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Affiliation(s)
- Mezna Saleh Altowyan
- 1Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Assem Barakat
- 2Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi Arabia.,3Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 426, Ibrahimia, Alexandria, 21321 Egypt
| | - Abdullah Mohammed Al-Majid
- 2Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi Arabia
| | - Hazem A Ghabbour
- 4Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, 11451 Saudi Arabia.,5Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516 Egypt
| | - Abdelkader Zarrouk
- 6Laboratory of Materials, Nanotechnology and Environment, Faculty of Science, Mohammed V University, 4Av. IbnBattuta, B.P. 1014 Rabat, Morocco
| | - Ismail Warad
- 7Department of Chemistry, Science College, An-Najah National University, P.O. Box 7, Nablus, Palestine
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Aouad MR, Messali M, Rezki N, Said MA, Lentz D, Zubaydi L, Warad I. Hydrophobic pocket docking, double-proton prototropic tautomerism in contradiction to single-proton transfer in thione ⇔thiol Schiff base with triazole-thione moiety: Green synthesis, XRD and DFT-analysis. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.12.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Aouad MR, Messali M, Rezki N, Al-Zaqri N, Warad I. Single proton intramigration in novel 4-phenyl-3-((4-phenyl-1H-1,2,3-triazol-1-yl)methyl)-1H-1,2,4-triazole-5(4H)-thione: XRD-crystal interactions, physicochemical, thermal, Hirshfeld surface, DFT realization of thiol/thione tautomerism. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.085] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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