Crown ethers at the aqueous solution–air interface. Part 2. Electrolyte effects, ethylene oxide hydration and temperature behaviour
Crown ethers at the aqueous solution–air interface. Part 2. Electrolyte effects, ethylene oxide hydration and temperature behaviour
Vibrational Sum Frequency Spectroscopy (VSFS) was employed to study adsorbing films of 4-Nitro Benzo-15-Crown-5 (NB15C5) and Benzo-15-Crown-5 (B15C5) at the aqueous solution–air interface. The surface of the solution is strongly influenced by the presence of crown ether species. Changes in the orientation of NB15C5 were monitored as a function of solution concentration, by targeting the ratio of peak intensities of the CN and NO2 vibrational modes. The water of hydration has also been probed as a function of crown concentration, salt concentration, and temperature. The latter study strongly suggests that the surface can be treated as a charged interface, and that the associated ordered water decreases with increasing ionic strength of the bulk solution
Niga, Petru
33deed1e-b117-4328-9630-77608382c32f
Johnson, C. Magnus
b2e75e28-0788-41cf-8795-52b75a316849
Frey, Jeremy G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Rutland, Mark W.
2594c3c7-3043-4fc9-862f-4fd9bd0215b7
2011
Niga, Petru
33deed1e-b117-4328-9630-77608382c32f
Johnson, C. Magnus
b2e75e28-0788-41cf-8795-52b75a316849
Frey, Jeremy G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Rutland, Mark W.
2594c3c7-3043-4fc9-862f-4fd9bd0215b7
Niga, Petru, Johnson, C. Magnus, Frey, Jeremy G. and Rutland, Mark W.
(2011)
Crown ethers at the aqueous solution–air interface. Part 2. Electrolyte effects, ethylene oxide hydration and temperature behaviour.
Physical Chemistry Chemical Physics.
(doi:10.1039/C0CP02144J).
Abstract
Vibrational Sum Frequency Spectroscopy (VSFS) was employed to study adsorbing films of 4-Nitro Benzo-15-Crown-5 (NB15C5) and Benzo-15-Crown-5 (B15C5) at the aqueous solution–air interface. The surface of the solution is strongly influenced by the presence of crown ether species. Changes in the orientation of NB15C5 were monitored as a function of solution concentration, by targeting the ratio of peak intensities of the CN and NO2 vibrational modes. The water of hydration has also been probed as a function of crown concentration, salt concentration, and temperature. The latter study strongly suggests that the surface can be treated as a charged interface, and that the associated ordered water decreases with increasing ionic strength of the bulk solution
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Published date: 2011
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Local EPrints ID: 179615
URI: http://eprints.soton.ac.uk/id/eprint/179615
ISSN: 1463-9076
PURE UUID: 19e849de-cdbf-4157-93da-7a8611befbf0
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Date deposited: 04 Apr 2011 07:27
Last modified: 15 Mar 2024 02:34
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Author:
Petru Niga
Author:
C. Magnus Johnson
Author:
Mark W. Rutland
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