Synthesis, Spectroscopic, Crystal Structure, Hirshfeld Surface Analysis and DFT Calculations of (E)-N-(2,6-dichlorophenyl)-1-(5-nitro-2-(piperidin-1-yl)phenyl) Methanamine

• Published in: Journal of structural chemistry 2024-08, Vol.65 (8), p.1576-1594
• Main Authors: Özşanlı, H., Aygün, S. N., Çoruh, U., Ağar, E.
• Format: Article
• Language: English
• Subjects: Atomic; Atomic/Molecular Structure and Spectra; Charge transfer; Chemistry; Chemistry and Materials Science; Crystal structure; Density functional theory; Fourier transforms; Imines; Infrared spectroscopy; Inorganic Chemistry; Molecular; Molecular orbitals; Molecular structure; Optical and Plasma Physics; Optical properties; Physical Chemistry; Single crystals; Solid State Physics; Spectroscopic analysis; Surface analysis (chemical); Thermodynamic properties
• ISSN: 0022-4766; 1573-8779
• DOI: 10.1134/S0022476624080092

In this study, experimental methods X-ray single crystal analysis, UV-Vis spectroscopy and FTIR spectroscopy, and theoretical method Density Functional Theory (DFT) were used to study the structure of the new Schiff base ( E )- N -(2,6-dichlorophenyl)-1-(5-nitro-2-(piperidin-1-yl)phenyl) methanamine. Theoretical calculations of the title compound and FTIR harmonic vibration frequencies were carried out using B3LYP methods with the 6-31G( d , p ) basis set. The optical properties have been studied by DFT calculation and the experimental UV-Vis spectrum presents its contribution to the HOMO‒LUMO boundary. The molecular electrostatic potential map (MEP-ESP), analysis of frontier molecular orbitals (FMO), and determination of thermodynamic properties for the title compound were conducted using identical levels of theory. Besides, the structural state and crystal packing of the title compound were analyzed using molecular structure, Hirshfeld surfaces, interactions energies, energy frameworks and electrophilicity-based charge transfer (ECT) with DNA bases.