Article,

High pressure Raman spectra of DL-lysine hydrochloride

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VIBRATIONAL SPECTROSCOPY, (2016)4th Meeting of the Encontro-Brasileiro-de-Espectroscopia-Raman (EnBraER), Juiz de Fora, BRAZIL, DEC 06-09, 2015.
DOI: 10.1016/j.vibspec.2016.08.011

Abstract

DL-lysine hydrochloride crystals were studied by Raman spectroscopy under hydrostatic pressure using a diamond anvil cell from ambient pressure up to 9.8 GPa in the spectral range from 1150 to 40 cm(-1). Changes in the Raman spectrum were observed in all spectral regions analyzed. In particular, modifications in the lattice modes indicate that the crystal undergoes a phase transition. The classification of the vibrational modes, the behavior of their band wavenumber as a function of the pressure and the reversibility of the phase transitions are also discussed. (C) 2016 Elsevier B.V. All rights reserved.

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