The high-pressure response of trans-cinnamic acid crystals studied by Raman spectroscopy

被引：0
|
作者：
Marinopoulou, Anna [1 ]
Christopoulou, Vasiliki [1 ,2 ]
Karabinaki, Olga [3 ]
Christofilos, Dimitris [3 ]
Arvanitidis, John [2 ]
机构：
[1] Int Hellenic Univ, Dept Food Sci & Technol, Thessaloniki, Greece
[2] Aristotle Univ Thessaloniki, Phys Dept, Thessaloniki 54124, Greece
[3] Aristotle Univ Thessaloniki, Fac Engn, Dept Chem Engn & Lab Phys, Thessaloniki, Greece
来源：
APPLIED RESEARCH | 2024年 / 3卷 / 04期
关键词：
cinnamic acid; high pressure; molecular crystals; Raman spectroscopy; SINGLE-CRYSTALS; ALPHA; DERIVATIVES; PHOTODIMERIZATION; TOPOCHEMISTRY; POLYMORPHISM; BETA;
D O I：
10.1002/appl.202300129
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The pressure response of crystalline trans-cinnamic acid is studied by means of Raman spectroscopy up to 6 GPa. Pressure application causes the reversible shift of all the observed Raman peaks to higher frequencies and changes in their relative intensities, with the intermolecular vibrational modes being by far more sensitive to pressurization compared to the intramolecular ones. The present high-pressure Raman data indicate the structural stability of the trans-cinnamic acid crystal and molecular conformation up to the highest pressure attained in the experiments, the importance of the hydrogen bonding, as well as the considerable strengthening of the intermolecular interactions at elevated pressures.
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页数：7
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