L-cysteine hydrochloride monohydrate crystals, C3H7NO2S.CH2O, were
studied by Raman spectroscopy as a function of pressure in a diamond
anvil cell up to 6.2 GPa in the spectral range 3500 - 30 cm(-1). From
the analysis of the results, we inferred that the crystal is
structurally stable in this pressure range. Some changes on the Raman
spectra were observed for bands related to vibrational modes of the SH,
NH3+, CH2, CCN, OH and COH units. These modifications were associated
with conformational changes of the molecules in the unit cell undergone
at high pressures. Comparing this behavior with those of L-cysteine,
DL-cysteine and L-cysteine hydrochloride crystals in the same pressure
range, we note greater stability for the hydrochloride monohydrate form.
In the L-cysteine hydrochloride monohydrate crystal, the chloride ion
and water molecule play an essential role in increasing the number of
the hydrogen bonds, improving the structural stability of the crystal.
%0 Journal Article
%1 WOS:000447570300014
%A Junior, J F Silva
%A Souza, G D S
%A Lima, C L
%A Freire, P T C
%A Pinheiro, G S
%C PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
%D 2018
%I ELSEVIER SCIENCE BV
%J VIBRATIONAL SPECTROSCOPY
%K Amino Stability} acid; {High-pressure;
%P 92-97
%R 10.1016/j.vibspec.2018.07.003
%T Vibrational properties of L-cysteine hydrochloride monohydrate crystal
under high-pressure
%V 98
%X L-cysteine hydrochloride monohydrate crystals, C3H7NO2S.CH2O, were
studied by Raman spectroscopy as a function of pressure in a diamond
anvil cell up to 6.2 GPa in the spectral range 3500 - 30 cm(-1). From
the analysis of the results, we inferred that the crystal is
structurally stable in this pressure range. Some changes on the Raman
spectra were observed for bands related to vibrational modes of the SH,
NH3+, CH2, CCN, OH and COH units. These modifications were associated
with conformational changes of the molecules in the unit cell undergone
at high pressures. Comparing this behavior with those of L-cysteine,
DL-cysteine and L-cysteine hydrochloride crystals in the same pressure
range, we note greater stability for the hydrochloride monohydrate form.
In the L-cysteine hydrochloride monohydrate crystal, the chloride ion
and water molecule play an essential role in increasing the number of
the hydrogen bonds, improving the structural stability of the crystal.
@article{WOS:000447570300014,
abstract = {L-cysteine hydrochloride monohydrate crystals, C3H7NO2S.CH2O, were
studied by Raman spectroscopy as a function of pressure in a diamond
anvil cell up to 6.2 GPa in the spectral range 3500 - 30 cm(-1). From
the analysis of the results, we inferred that the crystal is
structurally stable in this pressure range. Some changes on the Raman
spectra were observed for bands related to vibrational modes of the SH,
NH3+, CH2, CCN, OH and COH units. These modifications were associated
with conformational changes of the molecules in the unit cell undergone
at high pressures. Comparing this behavior with those of L-cysteine,
DL-cysteine and L-cysteine hydrochloride crystals in the same pressure
range, we note greater stability for the hydrochloride monohydrate form.
In the L-cysteine hydrochloride monohydrate crystal, the chloride ion
and water molecule play an essential role in increasing the number of
the hydrogen bonds, improving the structural stability of the crystal.},
added-at = {2022-05-23T20:00:14.000+0200},
address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
author = {Junior, J F Silva and Souza, G D S and Lima, C L and Freire, P T C and Pinheiro, G S},
biburl = {https://www.bibsonomy.org/bibtex/2ba8a78941b100764f0a09d9009fbdd82/ppgfis_ufc_br},
doi = {10.1016/j.vibspec.2018.07.003},
interhash = {9bf1bae73a586d111e8f01eac0477152},
intrahash = {ba8a78941b100764f0a09d9009fbdd82},
issn = {0924-2031},
journal = {VIBRATIONAL SPECTROSCOPY},
keywords = {Amino Stability} acid; {High-pressure;},
pages = {92-97},
publisher = {ELSEVIER SCIENCE BV},
pubstate = {published},
timestamp = {2022-05-23T20:00:14.000+0200},
title = {Vibrational properties of L-cysteine hydrochloride monohydrate crystal
under high-pressure},
tppubtype = {article},
volume = 98,
year = 2018
}