NLO ACTIVITY AND COMPUTATIONAL DISCUSSION OF HALOGEN-SUBSTITUTED CHALCONE DERIVATIVES

Abstract

The four halogen-substituted chalcones 1–4 have been synthesized and analyzed to FT-Infrared, UV-Visible, GC-MS spectrometer, and 1D NMR (1H and 13C) spectroscopy techniques. Computational calculations were carried out for geometrical optimization of structure regards bond length, bond angle, and torsional angle estimated. The molecular properties of donor-acceptor electron delocalization (NBO), Electron density, and bond critical point are carryover in (AIM), the polar site of molecules is determined by (MEP), HOMO-LUMO, and the dipole moment was calculated by GAUSSUION-09 Package. The polarizability and first-order hyperpolarizability calculations derived from non-linear optical (NLO) properties for the synthesized compounds (1-4). The disc diffusion method was used to investigate the microbial activity of antibacterial and antifungal activity.