Determination of anisotropic solvation structure of octafluorotoluene in supercritical carbon dioxide by means of solvent-induced F-19 NMR chemical shift

Authors
Kanakubo, M Umecky, T Kawanami, H Aizawa, T Ikushima, Y Masuda, Y
Citation
M. Kanakubo et al., Determination of anisotropic solvation structure of octafluorotoluene in supercritical carbon dioxide by means of solvent-induced F-19 NMR chemical shift, CHEM P LETT, 338(2-3), 2001, pp. 95-100
Citations number
25
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMICAL PHYSICS LETTERS
ISSN journal
00092614 → ACNP
Volume
338
Issue
2-3
Year of publication
2001
Pages
95 - 100
Database
ISI
SICI code
0009-2614(20010420)338:2-3<95:DOASSO>2.0.ZU;2-5
Abstract
F-19 NMR chemical shifts of octafluorotoluene and hexafluorobenzene in dilu te carbon dioxide solutions were precisely determined at a fixed temperatur e of 314.4 K over a wide range of pressure from 1 to 35 MPa. We newly prese nt the analytical procedure to determine anisotropic solvation structure by means of a solvent-induced F-19 NMR chemical shift. The anisotropic solvat ion structure around octafluorotoluene in supercritical carbon dioxide was discussed in comparison with a more symmetric geometry of hexafluorobenzene . (C) 2001 Elsevier Science B.V. All rights reserved.