Add time:07/14/2019         Source:sciencedirect.com

A new series of 3-(1-(3,4-dimethoxyphenethyl)-4,5-diphenyl-1H-imidazol-2-yl)-1H-indole derivatives (5a-5j) are conveniently synthesized and characterized by IR, 1H NMR and 13C NMR spectral techniques. The compound 5f was also confirmed by single crystal XRD analysis and optimized bond parameters were calculated by density functional theory (DFT) at B3LYP/6–31G (d, p) level. The optimized geometrical parameters obtained by DFT calculation are in good agreement with single crystal XRD data. The experimentally observed FT-IR and FT-Raman bands were assigned to different normal modes of the molecule. The stability and charge delocalization of the molecule were also studied by Natural Bond Orbital (NBO) analysis. The overlapping of atomic orbital along with their predicted energy is explained on the basis of HOMO–LUMO energy gap calculations. Molecular Electrostatic Potential map (MEP) was studied for predicting the reactive sites. The reported molecule used as a potential NLO material since it has high μβ0 value. The antibacterial activities of these derivatives were studied using molecular docking studies and it is compared with their experimental results.

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