The Preparation and Structures of Hydrogen Ordered Phases of Ice

Author:

Salzmann Christoph G.1234,Radaelli Paolo G.1234,Hallbrucker Andreas1234,Mayer Erwin1234,Finney John L.1234

Affiliation:

1. Institute of General, Inorganic, and Theoretical Chemistry, University of Innsbruck, Innrain 52a, 6020 Innsbruck, Austria.

2. Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, UK.

3. ISIS Facility, Rutherford Appleton Laboratory, Council for the Central Laboratory of the Research Councils (CCLRC), Chilton, Didcot OX11 0QX, UK.

4. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK.

Abstract

Two hydrogen ordered phases of ice were prepared by cooling the hydrogen disordered ices V and XII under pressure. Previous attempts to unlock the geometrical frustration in hydrogen-bonded structures have focused on doping with potassium hydroxide and have had success in partially increasing the hydrogen ordering in hexagonal ice I (ice I h ). By doping ices V and XII with hydrochloric acid, we have prepared ice XIII and ice XIV, and we analyzed their structures by powder neutron diffraction. The use of hydrogen chloride to release geometrical frustration opens up the possibility of completing the phase diagram of ice.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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