期刊
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
卷 99, 期 11, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jics.2022.100745
关键词
1,2,4-Oxadiazoles; Docking; Bioactivity; Hirshfeld; Pharmacological properties
资金
- Algerian Ministry of Higher Education and Scientific Research
- Directorate General of Scientific Research and Technological Development (DGRSDT)
- Abdelhamid Ibn Badis University of Mostaganem
The structure of BCOD was determined using X-ray single-crystal diffraction and theoretical calculations. The BCOD molecule is non-planar and exhibits specific intermolecular interactions and biological activity.
The structure of 2-(2-{1,2 dibromo-2-[3-(4-chloro-phenyl)- [1,2,4]oxadiazol-5-yl]-2-fluoro-ethyl1}-phenyl)-methyl 3-methoxy-acrylic ester (BCOD) was determined using X-ray single-crystal diffraction and theoretical. The BCOD compound crystallizes in the P-1 space group of the triclinic crystallographic system. The absolute structure has been refined to the final R of 5% for 3356 observed reflections. The evaluation of the theoretical parameters was performed using density functional theory (DFT) along with B3LYP and HSEH1PBE functionals at 6-311++G (d,p) basis set in the ground state. The theoretical geometries reproduce well the X-ray structural parameters. The 3D structure was analyzed through distances, bond and dihedral angles exposing that the BCOD molecule is non-planar. The HOMO and LUMO energy values, and reactivity descriptors were also studied and the molecular electrostatic surface potential (MEP) was calculated and mapped to highlight the positive and negative regions in the molecule. Furthermore, intermolecular interactions and their contributions in the crystal were analyzed by exploring Hirshfeld surface and 2D fingerprint results. The H center dot center dot center dot H and O center dot center dot center dot H intercontacts represent the main intermolecular interactions with contributions of 30.7% and 14%, respectively. Moreover, reduced density gradient was used to investigate non-bonded and weak interactions. The biological activity of this compound was extensively studied using molecular docking to identify the hydrogen bonds and binding energy with different proteins.
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