Wirkert, Florian J. and Hoelzl, Christoph and Paulus, Michael and Salmen, Paul and Tolan, Metin and Horinek, Dominik and Nase, Julia (2017) The Hydrophobic Gap at High Hydrostatic Pressures. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 56 (42). pp. 12958-12961. ISSN 1433-7851, 1521-3773
Full text not available from this repository. (Request a copy)Abstract
We have gained new insight into the so-called hydrophobic gap, a molecularly thin region of decreased electron density at the interface between water and a solid hydrophobic surface, by X-ray reflectivity experiments and molecular dynamics simulations at different hydrostatic pressures. Pressure variations show that the hydrophobic gap persists up to a pressure of 5 kbar. The electron depletion in the interfacial region strongly decreases with an increase in pressure, indicating that the interfacial region is compressed more strongly than bulk water. The decrease is most significant up to 2 kbar; beyond that, the pressure response of the depletion is less pronounced.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | X-RAY; WATER INTERFACE; LIQUID WATER; SURFACES; MONOLAYERS; DEPLETION; REFLECTIVITY; SPECTROSCOPY; DENSITY; MODEL; hydrophobic gap; hydrostatic pressure; interfaces; molecular dynamics simulations; X-ray reflectivity |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Dominik Horinek |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:19 |
| Last Modified: | 11 Feb 2019 15:32 |
| URI: | https://pred.uni-regensburg.de/id/eprint/2014 |
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