Electrolytes induce long-range orientational order and free energy changes in the H-bond network of bulk water.
- Chen Y Laboratory for fundamental BioPhotonics, Institutes of Bioengineering and Materials Science and Engineering, School of Engineering, and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
- Okur HI Department of Chemistry, Pennsylvania State University, University Park, PA 16802, USA.
- Gomopoulos N Laboratory for fundamental BioPhotonics, Institutes of Bioengineering and Materials Science and Engineering, School of Engineering, and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
- Macias-Romero C Laboratory for fundamental BioPhotonics, Institutes of Bioengineering and Materials Science and Engineering, School of Engineering, and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
- Cremer PS Department of Chemistry, Pennsylvania State University, University Park, PA 16802, USA.; Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA 16802, USA.
- Petersen PB Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA.
- Tocci G Laboratory for fundamental BioPhotonics, Institutes of Bioengineering and Materials Science and Engineering, School of Engineering, and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.; Laboratory of Computational Science and Modeling, Institute of Materials Science and Engineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
- Wilkins DM Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, UK.
- Liang C Laboratory of Computational Science and Modeling, Institute of Materials Science and Engineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
- Ceriotti M Laboratory of Computational Science and Modeling, Institute of Materials Science and Engineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
- Roke S Laboratory for fundamental BioPhotonics, Institutes of Bioengineering and Materials Science and Engineering, School of Engineering, and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
- 2016-05-07
Published in:
- Science advances. - 2016
Water
electrolytes
hydrogen bonding
molecular dynamics
nonlinear light scattering
nuclear quantum effects
second harmonic generation
surface tension.
Electrolytes
Hydrogen Bonding
Nanotechnology
Surface Properties
Water
English
Electrolytes interact with water in many ways: changing dipole orientation, inducing charge transfer, and distorting the hydrogen-bond network in the bulk and at interfaces. Numerous experiments and computations have detected short-range perturbations that extend up to three hydration shells around individual ions. We report a multiscale investigation of the bulk and surface of aqueous electrolyte solutions that extends from the atomic scale (using atomistic modeling) to nanoscopic length scales (using bulk and interfacial femtosecond second harmonic measurements) to the macroscopic scale (using surface tension experiments). Electrolytes induce orientational order at concentrations starting at 10 μM that causes nonspecific changes in the surface tension of dilute electrolyte solutions. Aside from ion-dipole interactions, collective hydrogen-bond interactions are crucial and explain the observed difference of a factor of 6 between light water and heavy water.
- Language
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- English
- Open access status
- gold
- Identifiers
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- DOI 10.1126/sciadv.1501891
- PMID 27152357
- Persistent URL
- https://sonar.ch/global/documents/16072
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