Theoretical and experimental investigations on molecular structure of 7-Chloro-9-phenyl-2,3-dihydroacridin-4(1H)-one with cytotoxic studies

Add time:07/12/2019    Source:sciencedirect.com

7-Chloro-9-phenyl-2,3-dihydroacridin-4(1H)-one (3) is synthesized from 2-amino-5-chlorobenzophenone (1) and 1,2-cyclohexanedione (2) in the presence of catalyst InCl3. FT-IR, FT-Raman and FT-NMR spectra of molecule 3 have been recorded and the structure was confirmed by single crystal X-ray diffraction. CDCl3 and DMSO-d6 FT-NMR spectra and 1H and 13C NMR chemical shifts have been measured in molecule 3 and calculated at the B3LYP/6-311G (d,p) and MO6-2x/6-311G (d,p) levels of theory. Similarly calculated vibrational frequencies were found in good agreement with experimental findings. The optimized geometry of molecule 3 was compared with experimental XRD values. DFT calculations of the molecular electrostatic potential (MEP) and HOMO - LUMO frontier orbitals identified chemically active sites of molecule 3 responsible for its bioactivity. The title compound, 3 exhibits higher cytotoxicity in Human breast cancer cells (MCF-7) compared to human lung adenocarcinoma cells (A549).

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