Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 1052, Issue -, Pages 214-220Publisher
ELSEVIER
DOI: 10.1016/j.molstruc.2013.08.024
Keywords
7-Methoxy-4-methylcoumarin; Molecular structure; FT-IR; FT-Raman; DFT; Vibrational spect
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Funding
- BAP, Konya Necmettin Erbakan University (Konya) [121210001]
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In the present study, as a result of detailed structural and conformational analysis of the 7-Methoxy-4-methylcoumarin, two different conformers have been obtained. The FT-IR and Raman spectra were recorded in the region 4000-400 cm(-1) and 3500-50 cm(-1), respectively. Vibrational frequences of the title compound were calculated by Becke3-Lee-Yang-Parr (B3LYP) functional using 6-311++G(d,p) basis sets. The ground state energies and dipole moments have also been computed. The calculated and scaled frequencies were compared with experimental values and on the basis of this comparison and total-energy distribution data assignments of fundamental vibrational modes were examined. The differences between the observed and scaled wavenumber values of most of the fundamentals are very small. (C) 2013 Elsevier B.V. All rights reserved.
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