Heat of solution of 15-crown-5 ether in the mixtures of water with DMSO, DMF, DMA and HMPA at 298.15K

Authors
Jozwiak, M Piekarski, H
Citation
M. Jozwiak et H. Piekarski, Heat of solution of 15-crown-5 ether in the mixtures of water with DMSO, DMF, DMA and HMPA at 298.15K, J MOL LIQ, 81(1), 1999, pp. 63-70
Citations number
30
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR LIQUIDS
ISSN journal
01677322 → ACNP
Volume
81
Issue
1
Year of publication
1999
Pages
63 - 70
Database
ISI
SICI code
0167-7322(199906)81:1<63:HOSO1E>2.0.ZU;2-P
Abstract
Enthalpies of solution of 15-crown-5 ether in dimethylsulfoxide-water, N,N- dimethylformamide-water, N,N-dimethylacetamide-water, and hexamethylphospho ramide-water systems have been measured at 298.15K. The plot of enthalpy of solution of 15C5 in these mixtures exhibits maximum at x(W) approximate to 0.5 for DMSO and DMA, x(W) approximate to 0.4 for DMF, x(W) approximate to 0.7 for HMPA, respectively. The results were discussed on the basis of the "cage model" of hydrophobic hydration. (C) 1999 Elsevier Science B.V. All rights reserved.