4.6 Article

Synthesis, crystal structure, vibrational spectral investigation, intermolecular interactions, chemical reactivity, NLO properties and molecular docking analysis on (E)-N-(4-nitrobenzylidene)-3-chlorobenzenamine: A combined experimental and theoretical study

Journal

JOURNAL OF MOLECULAR STRUCTURE
Volume 1240, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.molstruc.2021.130589

Keywords

NBCA; crystal structure; NLO; spectroscopic analysis; molecular docking

Funding

  1. PRFU project from The Algerian Ministry of Higher Education and Scientific Research
  2. Directorate General of Scientific Research and Technological Development (DGRSDT)
  3. Abdelhamid Ibn Badis University of Mostaganem

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This study compared theoretical and experimental results of NBCA, analyzing its molecular structure, vibration frequencies, UV-Vis, NMR chemical shift values, non-linear optical parameters, electronic transitions, global chemical reactivity descriptors, and more. Additionally, the biological activity of NBCA was investigated through substance activity spectra prediction and molecular docking.
In this research, we have compared theoretical and experimental results such as the molecular structure, vibration frequencies, UV-Vis, chemical shift values of H-1 and C-13 NMR of (E)-N-(4-nitrobenzylidene)-3-chlorobenzenamine (NBCA). The experimental data have been collected from a high-resolution X-ray diffraction pattern and the theoretical analyses have been carried out using the density functional theory (DFT) based on B3LYP level at 6-31++G (d, p) by Gaussian program, knowing that every single vibration frequency is awarded on the potential energy distribution (PED) base and electronic transitions are computed according to the time-dependent density functional theory (TD-DFT). The non-linear optical parameters (NLO) have similarly been investigated at the same level theory. The energies of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) and the global chemical reactivity descriptors (GCRD) of the title molecule were investigated by using DFT/B3LYP/6-311++G (d, p) method. Molecular electrostatic potential (MEP) is simulated to look for better reactive sites for electrophilic and nucleophilic attacks. To ascertain the contribution of intermolecular interactions, Hirshfeld surface analysis and fingerprint plots were carried out. To determine the biological activity of NBCA molecule, the basic prediction of substance activity spectra (PASS) and molecular docking are studied. (C) 2021 Elsevier B.V. All rights reserved.

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