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- W2743978077 abstract "This paper evaluates the anti-tubercular activity of dipyrromethane-derived hydrazones derivatives (3a-d) against strain of Mycobacterium tuberculosis H37Rv. The newly synthesized compounds have been obtained in good yield based on the condensation of aromatic aldehyde derivatives with pyrrole hydrazone in presence of catalyst and well characterized with spectroscopic methods (1H, 13C NMR, Mass spectrometry) and elemental analysis. The singlet observed in the experimental 1H and 13C NMR spectra in the range of 5.3–5.7 ppm and 30–33.86 ppm, respectively, indicating that two pyrrole units are joined at meso position. The electronic transitions observed in the experimental spectra are n→π* and π →π* in nature. Experimental and theoretical findings corroborate well with each other. The substitution of acceptor group (-NO2) at ortho- and meta-positions of benzene ring, present at meso-position of dipyrromethane is responsible for variation in β0 values. The calculated NLO of (3a-d) are much greater than those of p-nitroaniline (PNA). The solvent induced effects on the non-linear optical properties were studied and found to enhance NLO properties of the molecules as dielectric constants of the solvents increases. On the basis of results it is anticipated that these dipyrromethanes will be useful for both antimicrobial and non–linear optical (NLO) applications. With the help of Microplate Alamar Blue assay (MABA) method all (3a-d) compounds were screened for their anti-tubercular activity and found that 3b and 3d have higher inhibitory activity against strain of M. tuberculosis H37Rv." @default.
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- W2743978077 date "2017-12-01" @default.
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- W2743978077 title "Evaluation of antituberculosis activity and DFT study on dipyrromethane-derived hydrazone derivatives" @default.
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- W2743978077 doi "https://doi.org/10.1016/j.molstruc.2017.08.008" @default.
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