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Nekrouf A, Toubal K, Megrouss Y, Belkafouf NEH, Djafri A, Khelloul N, Daran JC, Djafri A, Chouaih A. Synthesis, structural, spectroscopic, intermolecular interactions, kinetic stability, charge transfer method with DNA bases and electronic properties of (E)-3-(2-ethoxyphenyl)-5-(3-(2-methoxyphenyl)-4methylthiazol-2(3H)-ylidene)-2-thioxothiazolidin-4-one: Computational and experimental approach. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Saberi Biroon S, Shajari N, Yahyaei H. Green and efficient synthesis of 1 H‐indazolo[1,2‐ b] phthalazine‐1,6,11(13 H)‐triones using ZrO(NO 3) 2.2H 2O as a novel catalyst and theoretical study of synthesized compounds. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Nahid Shajari
- Department of Chemistry, Zanjan BranchIslamic Azad University Zanjan Iran
| | - Hooriye Yahyaei
- Department of Chemistry, Zanjan BranchIslamic Azad University Zanjan Iran
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Dikmen G, Kani İ. Synthesis, spectroscopic characterization (FT-IR, Raman, UV-VIS, XRD), DFT studies and DNA binding properties of [Ni(C6H5CH2COO)(C12H8N2)2](ClO4)(CH3OH) compound. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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X–ray diffraction, Hirshfeld surface, local and global chemical activity studies of a Bis{(E)-2,4-di-tert-butyl-6-((3-iodo-4-methylphenylimino)methyl)phenolato-N,O-}copper(II) complex. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127874] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Experimental and theoretical approach: Local and global chemical activity, charge transfer method with DNA bases, spectroscopic, structural and electronic properties of (E)-2-(((4-fluorophenyl)imino)methyl)-4-methoxyphenol. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127451] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Evecen M, Tanak H, Ünver Y, Çelik F, Semiz L. Analysis on molecular, spectroscopic and electronic behavior of 4,4'-(butane-1,4-diyl)bis(1-((1-(4-chlorobenzyl)-1H-1,2,3-triazol-5-yl)methyl)-3-methyl-1H-1,2,4-triazol-5(4H)-one): A theoretical approach. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ünver Y, Gökce H, Bektaş E, Çelik F, Değirmencioğlu İ. New bis 1,3,4-oxadiazole derivatives: syntheses, characterizations, computational studies, and antioxidant activities. CAN J CHEM 2018. [DOI: 10.1139/cjc-2018-0101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In this study, two new bis oxadiazole derivatives (2a and 2b) were synthesized. The new compounds were characterized by elemental analyses, IR, 1H NMR, 13C NMR, and mass spectral studies and were tested for their antioxidant activity. According to the results, it was observed that the synthesized compounds (2a and 2b) had a very high activity in both 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing ability of plasma (FRAP) tests. The approximate geometries of the compounds 2a and 2b were prepared with GaussView5 visualization program. The optimized molecular geometric parameters, vibrational wavenumbers, UV–vis parameters, and HOMO–LUMO simulations were computed using Gaussian 09W program. The computations were performed at 6-311++G(d,p) basis set using the B3LYP functional in density functional theory (DFT) method. The harmonic vibrational wavenumbers computed in gas phase were scaled with 0.958 (1700–4000 cm−1) and 0.983 (0–1700 cm−1) for the B3LYP/6-311++G(d,p) level. To calculated the UV–vis spectroscopic parameters with TD-DFT method, the compounds 2a and 2b were optimized in DMF and DMSO solvents using the integral equation formalism polarizable continuum model (IEFPCM) method at the B3LYP/6-311++G(d,p) level. The HOMO, LUMO, and UV–vis analyses were studied to interpret intramolecular charge transfers.
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Affiliation(s)
- Yasemin Ünver
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Halil Gökce
- Vocational School of Health Services, Giresun University, 28200 Giresun, Turkey
| | - Ersan Bektaş
- Espiye Vocational School, Giresun University, 28600 Espiye, Giresun, Turkey
| | - Fatih Çelik
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - İsmail Değirmencioğlu
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
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Toy M, Tanak H. Molecular structure and vibrational and chemical shift assignments of 3'-chloro-4-dimethylamino azobenzene by DFT calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 152:530-536. [PMID: 25468435 DOI: 10.1016/j.saa.2014.11.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 10/25/2014] [Accepted: 11/01/2014] [Indexed: 06/04/2023]
Abstract
In the present work, a combined experimental and theoretical study on ground state molecular structure, spectroscopic and nonlinear optical properties of azo compound 3'-chloro-4-dimethlamino azobenzene are reported. The molecular geometry, vibrational wavenumbers and the first order hyperpolarizability of the title compound were calculated with the help of density functional theory computations. The optimized geometric parameters obtained by using DFT (B3LYP/6-311++G(d,p)) show good agreement with the experimental data. The vibrational transitions were identified based on the recorded FT-IR spectra in the range of 4000-400cm(-1) for solid state. The (1)H isotropic chemical shifts with respect to TMS were also calculated using the gauge independent atomic orbital (GIAO) method and compared with the experimental data. Using the TD-DFT method, electronic absorption spectra of the title compound have been predicted, and good agreement is determined with the experimental ones. To investigate the NLO properties of the title compound, the polarizability and the first hyperpolarizability were calculated using the density functional B3LYP method with the 6-311++G(d,p) basis set. According to results, the title compound exhibits non-zero first hyperpolarizability value revealing second order NLO behavior. In addition, DFT calculations of the title compound, molecular electrostatic potential and frontier molecular orbitals were also performed at 6-311++G(d,p) level of theory.
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Affiliation(s)
- Mehmet Toy
- Faculty of Education, Department of Science Education, Amasya University, Amasya, Turkey.
| | - Hasan Tanak
- Department of Physics, Faculty of Arts and Sciences, Amasya University, 05100 Amasya, Turkey
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Tanak H, Koçak F, Ağar E. A combined experimental (XRD, FT-IR, and UV–Vis) and DFT computational studies on (E)-N-[4-bromo-2-(trifluromethoxy)phenyl]-1-(5-nitrothiophen-2-yl) methanimine. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1090636] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Hasan Tanak
- Department of Physics, Faculty of Arts and Sciences, Amasya University, Amasya, Turkey
| | - Figen Koçak
- Department of Physics, Faculty of Arts and Sciences, Amasya University, Amasya, Turkey
| | - Erbil Ağar
- Department of Chemistry, Faculty of Arts and Sciences, Ondokuz Mayıs University, Kurupelit, Turkey
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Theoretical calculations, cytotoxic evaluation, and molecular docking studies of 4-(1-adamantyl)-5-[2-(3-hydroxynapthyl)]-2H-1,2,4-triazole-3(4H)-thione as a novel chemotherapeutic agent. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1735-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Alaşalvar C, Soylu MS, Ünver Y, Apaydın G, Ünlüer D. Spectroscopy studies, X-ray diffraction and DFT, HF calculations of 4-allyl-5-(thiophen-2-ylmethyl)-2H-1,2,4-triazol-3(4H)-one. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.10.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Köysal Y, Tanak H. Crystal structure, spectroscopic investigations and density functional studies of 4-(4-methoxyphenethyl)-5-benzyl-2H-1,2,4-triazol-3(4H)-one monohydrate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 93:106-115. [PMID: 22465776 DOI: 10.1016/j.saa.2012.02.054] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 01/22/2012] [Accepted: 02/14/2012] [Indexed: 05/31/2023]
Abstract
The triazol compound 4-(4-methoxyphenethyl)-5-benzyl-2H-1,2,4-triazol-3(4H)-one monohydrate (I) has been synthesized and characterized by (1)H NMR, (13)C NMR, IR, and X-ray single-crystal determination. The molecular geometry, vibrational frequencies and gauge including atomic orbital (GIAO) (1)H and (13)C NMR chemical shift values of (I) in the ground state have been calculated using the density functional method (B3LYP) with the 6-31G(d) basis set. The calculated results show that the optimized geometry can well reproduce the crystal structure, and the theoretical vibrational frequencies and chemical shift values show good agreement with experimental values. The energetic behavior of (I) in solvent media was examined using the B3LYP method with the 6-31G(d) basis set by applying the Onsager and the polarizable continuum model (PCM). The predicted non-linear optical properties of (I) are greater than ones of urea. In addition, DFT calculations of molecular electrostatic potentials, frontier molecular orbitals and thermodynamic properties of (I) were carried out at the B3LYP/6-31G(d) level of theory.
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Affiliation(s)
- Yavuz Köysal
- Yeşilyurt Demir-Çelik Vocational School, Ondokuz Mayıs University, Samsun, Turkey
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Süleymanoğlu N, Ustabaş R, Alpaslan YB, Ünver Y, Turan M, Sancak K. Synthesis, spectroscopic characterization, calculational studies and in vitro antitumoral activity of 4-(3-(1H-imidazol-1-yl)propyl)-(thiophen-2-ylmethyl)-1H-1,2,4-triazol-5(4H)-one. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.01.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ustabaş R, Süleymanoğlu N, Tanak H, Alpaslan YB, Ünver Y, Sancak K. Experimental and theoretical studies of the molecular structure of 4-(3-(1H-imidazol-1-yl)propyl)-5-p-tolyl-2H-1,2,4-triazol-3(4H)-one. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.09.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Unver Y, Köysal Y, Tanak H, Unlüer D, Işık S. Ethyl 4-(3-ethyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-4-yl)benzoate. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o1294. [PMID: 21579391 PMCID: PMC2979362 DOI: 10.1107/s160053681001603x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Accepted: 04/30/2010] [Indexed: 11/17/2022]
Abstract
In the title compound, C13H15N3O3, the dihedral angle between the two aromatic ring is 51.06 (1)°. In the crystal, molecules are connected by pairs of N—H⋯O hydrogen bonds into centrosymmetric dimers.
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Ziegler T. Density functional theory as a practical tool for the study of elementary reaction steps in organometallic chemistry. PURE APPL CHEM 1991. [DOI: 10.1351/pac199163060873] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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