Synthesis, FT-IR investigation and computational study of 5-[(4-Bromophenyl)acetamido]-2-(4-tert-butylphenyl) benzoxazole

Add time:07/15/2019    Source:sciencedirect.com

The synthesis and antimicrobial properties of 5-[(4-Bromophenyl)acetamido]-2-(4-tertbutylphenyl) benzoxazole are reported in the present work. The optimized molecular structure, 1H NMR, vibrational frequencies, corresponding vibrational assignments of 5-[(4-Bromophenyl)acetamido]-2-(4-tert-butylphenyl) benzoxazole have been investigated experimentally and theoretically using Gaussian09 software package. Potential energy distribution of the normal modes of vibrations was done using GAR2PED program. The HOMO and LUMO analysis is used to determine the charge transfer within the molecule. The stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed using NBO analysis. MEP was performed by the SDD method and the predicted infrared intensities have also been reported. The calculated geometrical parameters are in agreement with that of similar derivates. The first hyperpolarizability is high and the title compound is suitable for further NLO studies. Microbiological results indicated that the title compound possessed a broad spectrum activity against the tested Gram-positive, Gram-negative bacteria.

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