Effect of salt on the H-bond symmetrization in ice Article Swipe

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L. E. Bove , Richard Gaál , Zamaan Raza , Adriaan-Alexander Ludl , Stefan Klotz , A. Marco Saitta , Alexander F. Goncharov , Philippe Gillet ·

YOU? · · 2015 · Open Access · · DOI: https://doi.org/10.1073/pnas.1502438112 · OA: W2152301697

Significance Ice-VII and ice-X phases are the most stable forms of ice at high temperature and extreme pressures, typical of the interiors of satellites and planets. The phase transition between them is a prototypical case of quantum-driven phenomenon, as it can be described as a quantum delocalization of protons in the middle of O–O distances. In this study, we investigate the effect of ions on such quantum effects. We show that the presence of ions significantly modifies the fundamental H-bond properties of water ices. This finding could challenge our present description of the physics of ice bodies, essentially based on the assumption of the properties of pure ice under high pressure.