Molecular structure and vibrational spectra of 7-Methoxy-4-mehylcoumarin by density functional method
Küçük Resim Yok
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Anahtar Kelimeler
7-Methoxy-4-methylcoumarin, Molecular structure, FT-IR, FT-Raman, DFT, Vibrational spect
Kaynak
JOURNAL OF MOLECULAR STRUCTURE
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
1052
