期刊
POLYCYCLIC AROMATIC COMPOUNDS
卷 41, 期 4, 页码 825-840出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10406638.2019.1624974
关键词
BDE; DFT; molecular docking; RDF; TD-DFT; terphenyl
资金
- Ministry of Education, Science and Technological Development of Serbia [III41017]
Theoretical calculations at the B3LYP/CC-pVDZ level were used to investigate molecular properties and spectra of a terphenyl derivative, showing agreement with experimental results within limits. Analysis using methods such as partial density of states and natural transition orbitals provided insights into stability and charge transfer in the strongest excitation. Additionally, drug-receptor docking studies suggested the potential for new anti-protozoan drugs.
Theoretical calculations at the B3LYP/CC-pVDZ level were used to find the IR, Raman, VCD, and various molecular properties of a terphenyl derivative. Experimental and theoretical spectra agree within their respective limits. Partial density of states shows which parts of the molecules have the most important contribution to the FMO. Fluorine, sulfur, oxygen, and nitrogen atoms have practically insignificant contribution to the HOMO. Time dependent DFT calculations were used to study excitations, while natural transition orbitals were used to study the charge transfer in the strongest excitation. The experimentally observed FTIR modes are compared with calculated wavenumbers. Natural bond orbital analysis gives the idea about stability of molecules. MD simulations are used for calculating solubility parameters. Autoxidation and bond dissociation studies indicate stability of the compound. The docked ligands form secure complexes with the receptor methionyl-tRNA synthetase which indicates new anti-protozoan drugs.
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