کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1235617 | 1495270 | 2012 | 9 صفحه PDF | دانلود رایگان |
The FT-IR, FT-Raman spectra and XRD of 4′-methylbiphenyl-2-carbonitrile were recorded and analyzed. The frequencies were computed at various density functional theoretical levels using Gaussian09 software package. The data obtained from theoretical calculations were used to assign vibrational bands obtained in infrared and Raman spectra of the studied molecule. Potential energy distribution of the normal modes of vibrations were done using GAR2PED program. The geometrical parameters of the title compound are in agreement with XRD crystal structure data. The first hyperpolarizability is comparable with the reported values of similar derivatives and is an attractive object for future studies of non linear optics. The stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed using NBO analysis. According to XRD data, the dihedral angles between the mean planes of the two benzene rings is 44.7° and the crystal packing is stabilized by weak intermolecular π–π stacking interactions.
Figure optionsDownload as PowerPoint slideHighlights
► IR, Raman spectra and NBO analysis were reported.
► The wavenumbers are calculated theoretically using Gaussian09 software.
► The wavenumbers are assigned using PED analysis.
► Geometrical parameters are in agreement with XRD data.
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 98, December 2012, Pages 91–99