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https://open.uns.ac.rs/handle/123456789/19127
Nаziv: | Synthesis of 5-(5-methyl-benzofuran-3-ylmethyl)-3H- [1, 3, 4] oxadiazole-2-thione and investigation of its spectroscopic, reactivity, optoelectronic and drug likeness properties by combined computational and experimental approach | Аutоri: | Hiremath Sudhir M. Suvitha A. Patil Ninganagouda R. Hiremath Chidanandayya S. Khemalapure Seema S. Pattanayak Subrat K. Negalurmath Veerabhadrayya S. Obelannavar Kotresh Armaković Sanja Armaković Stevan |
Dаtum izdаvаnjа: | 2018 | Čаsоpis: | Spectrochimica Acta. Part A: Molecular and Biomolecular Spectroscopy | Sažetak: | © 2018 Elsevier B.V. This paper reports the synthesis of 5-(5-methyl-benzofuran-3-ylmethyl)-3H- [1, 3, 4] oxadiazole-2-thione (5MBOT) and characterization by FT-IR, FT-Raman, 1H NMR, 13C NMR and UV spectral studies. The density functional theory (DFT) calculations have been executed for the 5MBOT using B3LYP/6-31++G (d, p) basis set. The fundamental modes of the vibrations were designated by the potential energy distribution (PED), and the computed and experimental values support each other. The 1H NMR and 13C NMR chemical shifts of 5MBOT were estimated by gauge-including atomic orbitals (GIAO) method and compared with the experimental chemical shifts. The UV–Vis method used to study the visible absorption maxima (λmax) by using Time-Dependent DFT. Further, the Mulliken population analysis (MPA), natural population analysis (NPA) charges, thermodynamic properties at different temperatures were presented. The calculated HOMO and LUMO energies show that charge transfer within the molecule. The natural bonds orbital (NBO) also computed. Optoelectronic properties have been carried out by combination of DFT calculations and molecular dynamics (MD) simulations, in order to assess the potential of this structure for applications in organic electronics. Further, the study encompassed calculations of reorganization energies for holes and electrons and charge transfer rates. DFT calculations have been also used in order to identify locations possibly sensitive towards the autoxidation mechanism, which correlates between bond dissociation energy for hydrogen abstraction and the mechanism. The MD simulations have been used to understand interaction of 5MBOT with water molecules. Molecular docking studies reveals the antifungal activity of 5MBOT may be due to hydrogen bonding and hydrophobic interactions with different antifungal proteins. | URI: | https://open.uns.ac.rs/handle/123456789/19127 | ISSN: | 1386-1425 | DOI: | 10.1016/j.saa.2018.07.003 |
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