Abstract
Single crystals of DL-valine and DL-lysine hydrochloride were grown by
slow evaporation method and the crystallographic structure were
confirmed by X-ray diffraction experiment and Rietveld method. These two
crystals have been studied by Raman spectroscopy in the 25-3600 cm(-1)
spectral range and by infrared spectroscopy through the interval
375-4000 cm(-1) at room temperature. Experimental and theoretical
vibrational spectra were compared and a complete analysis of the modes
was done in terms of the Potential Energy Distribution (PED). (C) 2016
Published by Elsevier B.V.
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