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Title
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Vibrational spectroscopic (FT-IR and FT-Raman) studies, HOMO-LUMO, NBO analysis and MEP of 6-methyl-1-({[(2E)-2-methyl-3-phenyl-prop-2-en-l-yl]oxy}methyl)-1,2,3,4- tetra-hydroquinazoline-2,4-dione, a potential chemotherapeutic agent, using density functional methods
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Author
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Abstract
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| 6-Methyl-1 -({[(2E)-2-methyl-3-phenyl-prop-2-en-1-yl]oxy)methyl)-1,2,3,4-tetra-hydroquinazoline-2,4-dione was prepared via treatment of silylated 6-methylquinazoline-2,4-dione with bis-[(E)-2-methyl-3-phenylallyloxy]methane. FT-IR and FT-Raman spectra were recorded and analyzed. The vibrational wavenumbers were computed using DFT methods and are assigned with the help of potential energy distribution method. The first hyperpolarizability, infrared intensities and Raman activities also reported. The geometrical parameters of the title compound obtained from XRD studies are in agreement with the calculated (B3LYP) values. The stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed using NBO analysis. The HOMO and LUMO analysis are used to determine the charge transfer within the molecule. MEP was performed by the B3LYP method and from the MEP it is evident that the negative charge covers the C=O group and the positive region is over the phenyl ring and NH group. (C) 2014 Elsevier B.V. All rights reserved. |
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Language
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English
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Source (journal)
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Spectrochimica acta: part A: molecular and biomolecular spectroscopy. - Oxford
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Publication
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Oxford
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2015
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ISSN
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1386-1425
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DOI
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10.1016/J.SAA.2014.06.039
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Volume/pages
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134
(2015)
, p. 316-325
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ISI
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000342718700042
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Pubmed ID
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25022504
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Full text (Publisher's DOI)
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