Abstract
L-threonine crystal was studied by Raman spectroscopy under pressure in
the spectral range from 50 to 3300 cm(-1). The pressure range of a
previous study has been extended from 4 to 27.0 GPa. Modifications in
the whole spectrum give us evidence of three structural phase
transitions undergone by this amino acid as well as two conformational
change. The classification of the vibrational modes and the behavior of
their frequencies as a function of the pressure are presented. (C) 2015
Elsevier B.V. All rights reserved.
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