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Pressure‐induced phase transitions in palmitic acid: C form
Author(s) -
de Sousa F. F.,
Saraiva G. D.,
Freire P. T. C.,
Lima J. A.,
Alcantara P.,
Melo F. E. A.,
Mendes Filho J.
Publication year - 2012
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.2980
Subject(s) - raman spectroscopy , hydrostatic pressure , chemistry , palmitic acid , ambient pressure , crystal structure , phase (matter) , crystal (programming language) , phase transition , crystallography , analytical chemistry (journal) , organic chemistry , thermodynamics , optics , fatty acid , physics , programming language , computer science
In this article, we report a high‐pressure Raman spectroscopy study of palmitic acid (PA, C form) from ambient pressure up to 21 GPa. The effects of hydrostatic pressure on the vibrational spectrum of PA are reported, and the data show that PA experiences a rich sequence of phase transformations. These changes in the crystal structure occur gradually as the pressure increases and they are related to the highly flexible crystalline structure. Copyright © 2011 John Wiley & Sons, Ltd.