Raman spectra Of L-alanine, L-threonine and taurine amino acids crystals
under high-pressure conditions at room temperature were investigated in
a diamond anvil cell in order to observe the behavior of the torsional
mode of NH3 unit. It was observed for L-threonine and taurine crystals
that increasing pressure produces an increase in the wave number of the
band associated to the torsional vibration of ammonium group, while for
L-alanine crystal a decrease in the wave number is observed. The
anomalous behavior Of L-alanine is explained in terms of the length and
geometry of the hydrogen bonds within the crystalline structure: due to
a short average length the effect of pressure is to deform the hydrogen
bond, while for L-threonine and taurine, pressure approximates the N and
O atoms in the N-H center dot center dot center dot 0 intermolecular
bond. (c) 2007 Elsevier B.V. All rights reserved.
%0 Journal Article
%1 WOS:000252497500006
%A Freire, P T C
%A Melo, F E A
%A Filho, J Mendes
%A Lima, R J C
%A Teixeira, A M R
%C PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
%D 2007
%I ELSEVIER SCIENCE BV
%J VIBRATIONAL SPECTROSCOPY
%K Raman acid; bond; high hydrogen pressure; scattering} {amino
%N 2, SI
%P 99-102
%R 10.1016/j.vibspec.2007.05.003
%T The behavior of NH3 torsional vibration of L-alanine, L-threonine and
taurine crystals under high pressure: A Raman spectroscopic study
%V 45
%X Raman spectra Of L-alanine, L-threonine and taurine amino acids crystals
under high-pressure conditions at room temperature were investigated in
a diamond anvil cell in order to observe the behavior of the torsional
mode of NH3 unit. It was observed for L-threonine and taurine crystals
that increasing pressure produces an increase in the wave number of the
band associated to the torsional vibration of ammonium group, while for
L-alanine crystal a decrease in the wave number is observed. The
anomalous behavior Of L-alanine is explained in terms of the length and
geometry of the hydrogen bonds within the crystalline structure: due to
a short average length the effect of pressure is to deform the hydrogen
bond, while for L-threonine and taurine, pressure approximates the N and
O atoms in the N-H center dot center dot center dot 0 intermolecular
bond. (c) 2007 Elsevier B.V. All rights reserved.
@article{WOS:000252497500006,
abstract = {Raman spectra Of L-alanine, L-threonine and taurine amino acids crystals
under high-pressure conditions at room temperature were investigated in
a diamond anvil cell in order to observe the behavior of the torsional
mode of NH3 unit. It was observed for L-threonine and taurine crystals
that increasing pressure produces an increase in the wave number of the
band associated to the torsional vibration of ammonium group, while for
L-alanine crystal a decrease in the wave number is observed. The
anomalous behavior Of L-alanine is explained in terms of the length and
geometry of the hydrogen bonds within the crystalline structure: due to
a short average length the effect of pressure is to deform the hydrogen
bond, while for L-threonine and taurine, pressure approximates the N and
O atoms in the N-H center dot center dot center dot 0 intermolecular
bond. (c) 2007 Elsevier B.V. All rights reserved.},
added-at = {2022-05-23T20:00:14.000+0200},
address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
author = {Freire, P T C and Melo, F E A and Filho, J Mendes and Lima, R J C and Teixeira, A M R},
biburl = {https://www.bibsonomy.org/bibtex/25640a20c5b67697f5b052e70ff8e23ee/ppgfis_ufc_br},
doi = {10.1016/j.vibspec.2007.05.003},
interhash = {85f23a998343d87faf5f4aeecab3ebbf},
intrahash = {5640a20c5b67697f5b052e70ff8e23ee},
issn = {0924-2031},
journal = {VIBRATIONAL SPECTROSCOPY},
keywords = {Raman acid; bond; high hydrogen pressure; scattering} {amino},
note = {Workshop on Foundations and Applications of Raman Spectroscopy, Ceara,
BRAZIL, SEP 24-26, 2006},
number = {2, SI},
pages = {99-102},
publisher = {ELSEVIER SCIENCE BV},
pubstate = {published},
timestamp = {2022-05-23T20:00:14.000+0200},
title = {The behavior of NH3 torsional vibration of L-alanine, L-threonine and
taurine crystals under high pressure: A Raman spectroscopic study},
tppubtype = {article},
volume = 45,
year = 2007
}