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Liu R, Cheng SC, Xiao Y, Chan KC, Tong KM, Ko CC. Recyclable Polymer-Supported Iridium-Based Photocatalysts for Photoredox Organic Transformations. J Catal 2022. [DOI: 10.1016/j.jcat.2022.01.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2
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Spectroscopic characterization of 4,5-diphenyl-2-(2,4,5-trimethoxyphenyl)-1H-imidazole obtained from the condensation of benzyl. Experimental and DFT approach. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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3
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Synthesis, enzymes inhibitory properties and characterization of 2- (bis (4-aminophenyl) methyl) butan-1-ol compound: Quantum simulations, and in-silico molecular docking studies. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100206] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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4
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Cao XL, Liu Y, Li GL, Lu ZX, Li S, Cao ZM, Huang YG. A 3D supramolecular framework assembled via π⋅⋅⋅π interactions and CH⋅⋅⋅Cl hydrogen-bonds with second-harmonic generation response. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hajam TA, Saleem H, Syed Ali Padusha M, Mohammed Ameen KK. Spectroscopic Studies (FT-IR, FT-Raman and UV-Vis), NBO Analysis, HOMO-LUMO, First Order Hyperpolarizability and Docking Studies of 4-[4-(Bromo-Phenylimino)-Methyl]-2-Ethoxy Phenol. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1988994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - H. Saleem
- Department of Physics, Annamalai University, Annamalainagar, India
| | - M. Syed Ali Padusha
- PG and Research Department of Chemistry, Jamal Mohamed College, Trichy affiliation with Bharathidasan University, Tiruchirappalli, India
| | - K. K. Mohammed Ameen
- PG and Research Department of Chemistry, Jamal Mohamed College, Trichy affiliation with Bharathidasan University, Tiruchirappalli, India
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Hajam TA, Saleem H, Syed Ali Padhusha M, Mohammed Ameen KK. Quantum Mechanical Study, Spectroscopic (FT-IR, FT-Raman and UV-Vis) Study, NBO, NLO Analysis and Molecular Docking Studies of 2-Ethoxy-4-(Pyridine-2yliminomethyl)-Phenol. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1896561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - H. Saleem
- Department of Physics, Annamalai University, Annamalainagar, India
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Hajam TA, Saleem H, Padhusha MSA, Mohammed Ameen KK. Synthesis, quantum chemical calculations and molecular docking studies of 2-ethoxy-4[(2-trifluromethyl-phenylimino)methyl]phenol. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1781945] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - H. Saleem
- Department of Physics, Annamalai University, Annamalainagar, India
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Molecular and NLO Properties of Red Fluorescent Coumarins - DFT Computations Using Long-Range Separated and Conventional Functionals. J Fluoresc 2018; 29:241-253. [PMID: 30554293 DOI: 10.1007/s10895-018-2333-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/10/2018] [Indexed: 10/27/2022]
Abstract
Comparative study of nonlinear optical properties of red fluorescent coumarins was carried out with density functional theory based ab initio method using the popular global hybrid (GH) and range separated hybrid (RSH) functionals and correlated with the spectroscopic values. The GHs - M06 L, PBE1PBE, M06, BHHLYP, M062X and M06HF and RSHs - HISSbPBE, wB97, wB97X, HSEH1PBE, CAM-B3LYP and wB97XD in combination with the double zeta basis function 6-311 + G(d,p) were used. The computed polarizability (α0), hyperpolarizability of the first order (β0) and second order (γ) computed by the RSHs are closer to the spectroscopic values compared to GHs. Polarizabilities computed with the functionals BHHLYP and M06-2X are closer with the spectroscopic values. Incorporation of additional cyano group enhances the NLO response. An increase in electrophilic nature contributed from the reduced orbital band gap culminating an increase in α0, β0, and γ in all the cases. The NLO response was found to be highly solvent dependent that is the polarity of the micro environment created by the solvents. To understand the agreement and accuracy among the NLO parameters obtained from the selected DFT functionals and the spectroscopic values, the mean absolute error (MAE) and vibrational contribution parameters are presented. Two photon absorption (TPA) cross section depends upon the molecular structure where π-framework is an important factor rather than number of acceptors.
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Jadhav AG, Rhyman L, Alswaidan IA, Ramasami P, Sekar N. Spectroscopic and DFT approach for structure property relationship of red emitting rhodamine analogues: A study of linear and nonlinear optical properties. COMPUT THEOR CHEM 2018. [DOI: 10.1016/j.comptc.2018.03.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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10
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A computational perspective of vibrational and electronic analysis of potential photosensitizer 2-chlorothioxanthone. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.12.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Avhad K, Jadhav A, Sekar N. Fluorescent vinyl and styryl coumarins: A comprehensive DFT study of structural, electronic and NLO properties. J CHEM SCI 2017. [DOI: 10.1007/s12039-017-1392-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Avcı D, Dede B, Bahçeli S, Varkal D. Spectroscopic and quantum chemical calculation study on 2–ethoxythiazole molecule. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.001] [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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13
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Avcı D, Bahçeli S, Tamer Ö, Atalay Y. Comparative study of DFT/B3LYP, B3PW91, and HSEH1PBE methods applied to molecular structures and spectroscopic and electronic properties of flufenpyr and amipizone. CAN J CHEM 2015. [DOI: 10.1139/cjc-2015-0176] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The optimized molecular structures, conformational analyses, vibrational (IR) frequencies and their assignments, maximum electronic absorption wavelengths (gas phase and in ethanol solvent), 1H and 13C NMR chemical shift values (gas phase and in CDCl3 solvent), HOMO−LUMO analysis, molecular electrostatic potential surfaces, and nonlinear optical properties of flufenpyr (C14H9ClF4N2O4) and amipizone (C14H16ClN3O) compounds that have many biological activities have been calculated using the DFT/B3LYP, B3PW91, and HSEH1PBE methods with the 6-311G(d,p) basis set in the ground state. A comparison among the results calculated at the mentioned levels indicates that the HSEH1PBE calculations give usually greater values compared with the others in terms of vibrational frequencies, the maximum electronic absorption wavelengths, and HOMO−LUMO energy gaps of the title compounds.
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Affiliation(s)
- D. Avcı
- Physics Department, Faculty of Arts and Science, Sakarya University, 54187 Sakarya, Turkey
| | - S. Bahçeli
- Physics Department, Faculty of Arts and Science, Süleyman Demirel University, 32260 Isparta, Turkey
| | - Ö. Tamer
- Physics Department, Faculty of Arts and Science, Sakarya University, 54187 Sakarya, Turkey
| | - Y. Atalay
- Physics Department, Faculty of Arts and Science, Sakarya University, 54187 Sakarya, Turkey
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Gökce H, Bahçeli S. Spectroscopic and quantum chemical studies on bromopyrazone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 133:741-751. [PMID: 24996217 DOI: 10.1016/j.saa.2014.06.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 05/20/2014] [Accepted: 06/03/2014] [Indexed: 06/03/2023]
Abstract
In this study, the FT-IR, micro-Raman and UV-vis. spectra of bromopyrazone molecule, C10H8BrN3O, (with synonym,1-phenyl-4-amino-5-bromopyridazon-(6) or 5-amino-4-bromo-2-phenyl-3(2H)-pyridazinone) were recorded experimentally. The molecular structure, vibrational wavenumbers, electronic transition absorption wavelengths in ethanol solvent, HOMOs and LUMOs analyses, molecular electrostatic potential (MEP), natural bond orbitals (NBO), nonlinear optical (NLO) properties and atomic charges of bromopyrazone molecule have been calculated by using DFT/B3LYP method with 6-311++G(d,p) basis set in ground state. The obtained results show that the calculated vibrational frequencies and UV-vis. values are in a good agreement with experimental data.
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Affiliation(s)
- Halil Gökce
- Vocational High School of Health Services, Giresun University, Güre Campus, 28200 Giresun, Turkey
| | - Semiha Bahçeli
- Süleyman Demirel University, Faculty of Arts and Sciences, Physics Department, Çünür East Campus, 32260 Isparta, Turkey.
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Bitmez Ş, Sayin K, Avar B, Köse M, Kayraldız A, Kurtoğlu M. Preparation, spectral, X-ray powder diffraction and computational studies and genotoxic properties of new azo–azomethine metal chelates. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.07.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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