Raman spectra of the anthracene solution are recorded using a Raman source of high luminosity. Twelve new frequencies are found and an assignment is proposed using earlier measurements on a single crystal.
Raman and infrared spectroscopic studies of p-toluidine and p-nitrotoluene molecules have been performed. In normal mode calculations, the force field has been constructed by the local interaction approximation.
The lattice vibrational spectrum of p-nitrotoluene (PNT) single crystals has been studied by Raman and IR spectroscopic techniques. Twenty-one lines have been recorded in the Raman spectrum and nine lines in the far IR spectrum. Calculations of vibrational frequencies have been performed using the rigid molecule approximation. Intermolecular interactions have been described by atom-pair intermolecular potential functions for interatomic distances up to 4.0A. An assignment of the observed to the calculated frequencies has been proposed.
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