Molecular dynamics simulation of fluorination effect for solvation of trifluoromethylbenzoic acid isomers in supercritical carbon dioxide

作者: H. Higashi , Y. Iwai , K. Miyazaki , Y. Arai

DOI: 10.1080/08927020500183299

关键词:

摘要: A molecular dynamics (MD) simulation was applied to carbon dioxide+trifluoromethylbenzoic acid isomer and dioxide+methylbenzoic systems investigate the interactions between dioxide solutes. The pair correlation functions trifluoromethyl group or methyl in solutes were calculated study fluorination effect of solvation. As a result, it found that trifluoromethylbenzoic isomers stronger than those methylbenzoic isomers. results had same tendency as experimental solubility enhancements coincided with trend interaction parameters Peng-Robinson equation state determined from data.

参考文章(17)
T. A. Hoefling, R. M. Enick, E. J. Beckman, Microemulsions in near-critical and supercritical carbon dioxide The Journal of Physical Chemistry. ,vol. 95, pp. 7127- 7129 ,(1991) , 10.1021/J100172A006
Robert Enick, Eric Beckman, Ali Yazdi, Val Krukonis, Hans Schonemann, Jon Howell, Phase behavior of CO2–perfluoropolyether oil mixtures and CO2–perfluoropolyether chelating agent mixtures The Journal of Supercritical Fluids. ,vol. 13, pp. 121- 126 ,(1998) , 10.1016/S0896-8446(98)00043-6
Nicolas Galand, Georges Wipff, Solvation of benzene derivatives in SC-CO2: a molecular dynamics study of fluorination effects New Journal of Chemistry. ,vol. 27, pp. 1319- 1325 ,(2003) , 10.1039/B304300B
Yoshio Iwai, Kaoru Miyazaki, Miyuki Oki, Yoshiyuki Ogino, Yasuhiko Arai, Hidenori Higashi, Measurement and correlation of solubilities for trifluoromethylbenzoic acid isomers in supercritical carbon dioxide Journal of Supercritical Fluids. ,vol. 33, pp. 15- 20 ,(2005) , 10.1016/J.SUPFLU.2004.03.006
P. P. Ewald, Die Berechnung optischer und elektrostatischer Gitterpotentiale Annalen der Physik. ,vol. 369, pp. 253- 287 ,(1921) , 10.1002/ANDP.19213690304
Poovathinthodiyil Raveendran, Scott L. Wallen, Exploring CO2-Philicity: Effects of Stepwise Fluorination Journal of Physical Chemistry B. ,vol. 107, pp. 1473- 1477 ,(2003) , 10.1021/JP027026S
A. K. Rappe, C. J. Casewit, K. S. Colwell, W. A. Goddard, W. M. Skiff, UFF, a full periodic table force field for molecular mechanics and molecular dynamics simulations Journal of the American Chemical Society. ,vol. 114, pp. 10024- 10035 ,(1992) , 10.1021/JA00051A040