The Preparation and Structures of Hydrogen Ordered Phases of Ice

@article{Salzmann2006ThePA,
  title={The Preparation and Structures of Hydrogen Ordered Phases of Ice},
  author={Christoph G. Salzmann and Paolo G. Radaelli and Andreas Hallbrucker and Erwin Mayer and John L. Finney},
  journal={Science},
  year={2006},
  volume={311},
  pages={1758 - 1761}
}
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 Ih). 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… 
Detailed crystallographic analysis of the ice V to ice XIII hydrogen-ordering phase transition.
TLDR
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Proton ordering in cubic ice and hexagonal ice; a potential new ice phase--XIc.
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TLDR
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Hydrogen bond ordering in ice V and the transition to ice XIII.
TLDR
The proton ordered version of ice V, ice XIII, was recently identified using Raman spectroscopy and neutron diffraction techniques and effective spin-lattice Hamiltonians governing hydrogen bond fluctuations are developed, which are in qualitative agreement with experiment.
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TLDR
This work presents an example where hydrochloric-acid-doped ice VI undergoes an alternative type of phase transition upon cooling at high pressure as the orientationally disordered ice remains disordered but undergoes structural distortions.
Experimental evidence for the existence of a second partially-ordered phase of ice VI
TLDR
It is demonstrated that disordered ice undergoes different manners of hydrogen ordering, which are thermodynamically controlled by pressure in the case of ice VI, which opens up the possibility of completing the phase diagram of ice.
Proton ordering and reactivity of ice
Cubic ice Ic is a rarely-observed ambient pressure phase of water implicated in the catalysis of atmospheric reactions. It forms between 160K and 243K, in droplets smaller than 5µm 3µm in diameter.
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