Journal
OPTICAL AND QUANTUM ELECTRONICS
Volume 53, Issue 10, Pages -Publisher
SPRINGER
DOI: 10.1007/s11082-021-03146-w
Keywords
DFT; Vibrational assignments; HOMO-LUMO; TG-DTA; Antimicrobial activity
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In this study, 3-nitroanilinium nitrate (3NAN) was successfully synthesized and crystallized using solvent evaporation technique. The molecular structure, vibrational spectra, thermal stability, pharmaceutical/biological activity, and antimicrobial activity were analyzed and confirmed through various computational and experimental methods.
In this work, 3-nitroanilinium nitrate (3NAN) has been synthesized and crystallized successfully by solution growth combined with solvent evaporation technique. 3NAN molecular structure has been optimized with Density Functional Theory (DFT) using B3LYP function and Hartree-Fock method with a 6-311 + + G(d,p) basis set. The geometrical parameters of the title molecules have been analyzed. The computed vibrational spectra were compared with experimental result which show appreciable agreement. Thermal stability of the crystal was analyzed with TGA/DTA and the melting points of the salt identified at 209 oC. HOMO-LUMO energy calculations have shown the charge transfer within the molecule. The possible pharmaceutical/biological activity of the salts confirmed by the Frontier Molecular Orbital (FMO) analysis have lower band gap value. The antimicrobial activity of grown crystals has been tested against certain potentially threatening microbes.
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