Pressure-dependent Raman scattering studies have been performed on
stearic acid single crystal, C form. The vibrational spectra have been
recorded in the 20-1200cm(-1) and in the 2800-3100cm(-1) spectral
regions. The behavior of the Raman modes indicates that the crystal
undergoes a series of structural modifications. The change observed
between 0.8 and 1.27 GPa was associated with a conformational
modification or tilting of the dimer. A second modification was observed
at similar to 2.5 GPa accompanied by jump of lattice mode frequencies,
and the appearance and disappearance of bands. Finally, a third set of
changes in the Raman band profile was observed between 3.3 and 3.8 GPa
and was associated with another structural phase transition. (C) 2010
Elsevier B.V. All rights reserved.
%0 Journal Article
%1 WOS:000285531400008
%A de Sousa, F F
%A Freire, P T C
%A Saraiva, G D
%A Jr., J A Lima
%A Jr., P Alcantara
%A Melo, F E A
%A Filho, J Mendes
%C PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
%D 2010
%I ELSEVIER SCIENCE BV
%J VIBRATIONAL SPECTROSCOPY
%K Inelastic Phase crystals; light scattering} transition; {Organic
%N 2, SI
%P 118-122
%R 10.1016/j.vibspec.2010.06.008
%T Pressure-induced phase transitions in stearic acid C form
%V 54
%X Pressure-dependent Raman scattering studies have been performed on
stearic acid single crystal, C form. The vibrational spectra have been
recorded in the 20-1200cm(-1) and in the 2800-3100cm(-1) spectral
regions. The behavior of the Raman modes indicates that the crystal
undergoes a series of structural modifications. The change observed
between 0.8 and 1.27 GPa was associated with a conformational
modification or tilting of the dimer. A second modification was observed
at similar to 2.5 GPa accompanied by jump of lattice mode frequencies,
and the appearance and disappearance of bands. Finally, a third set of
changes in the Raman band profile was observed between 3.3 and 3.8 GPa
and was associated with another structural phase transition. (C) 2010
Elsevier B.V. All rights reserved.
@article{WOS:000285531400008,
abstract = {Pressure-dependent Raman scattering studies have been performed on
stearic acid single crystal, C form. The vibrational spectra have been
recorded in the 20-1200cm(-1) and in the 2800-3100cm(-1) spectral
regions. The behavior of the Raman modes indicates that the crystal
undergoes a series of structural modifications. The change observed
between 0.8 and 1.27 GPa was associated with a conformational
modification or tilting of the dimer. A second modification was observed
at similar to 2.5 GPa accompanied by jump of lattice mode frequencies,
and the appearance and disappearance of bands. Finally, a third set of
changes in the Raman band profile was observed between 3.3 and 3.8 GPa
and was associated with another structural phase transition. (C) 2010
Elsevier B.V. All rights reserved.},
added-at = {2022-05-23T20:00:14.000+0200},
address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
author = {de Sousa, F F and Freire, P T C and Saraiva, G D and Jr., J A Lima and Jr., P Alcantara and Melo, F E A and Filho, J Mendes},
biburl = {https://www.bibsonomy.org/bibtex/249c2aea17cdcab0fc858d13791750399/ppgfis_ufc_br},
doi = {10.1016/j.vibspec.2010.06.008},
interhash = {a41649a10b3097c359c1055f679f067b},
intrahash = {49c2aea17cdcab0fc858d13791750399},
issn = {0924-2031},
journal = {VIBRATIONAL SPECTROSCOPY},
keywords = {Inelastic Phase crystals; light scattering} transition; {Organic},
note = {1st Brazilian Meeting on Raman Spectroscopy (BMRS), Sao Paulo, BRAZIL,
DEC 06-09, 2009},
number = {2, SI},
pages = {118-122},
publisher = {ELSEVIER SCIENCE BV},
pubstate = {published},
timestamp = {2022-05-23T20:00:14.000+0200},
title = {Pressure-induced phase transitions in stearic acid C form},
tppubtype = {article},
volume = 54,
year = 2010
}