Editing Ice XV
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Fourteen different polymorphs of | {{Stub-water}} | ||
the search of new solid phases | Fourteen different polymorphs of water are experimentally known. However, | ||
Two | the search of new solid phases are a very active investigation area. | ||
Two main routes exist. The first one is the search (at low temperatures) | |||
of proton ordered analogous of the high temperature proton disordered ices. | of proton ordered analogous of the high temperature proton disordered ices. | ||
This is the research that lead to the discovery of ices [[ice VIII]], [[ice IX]], [[ice XI]], [[ice XIII]] | This is the research that lead to the discovery of ices [[ice VIII]], [[ice IX]], [[ice XI]], [[ice XIII]] | ||
and [[ice XIV]]. [[Ice VI]] being probably the only proton disordered ice for which | and [[ice XIV]]. [[Ice VI]] being probably the only proton disordered ice for which | ||
the proton ordered ice has not yet been found. Some authors label this | the proton ordered ice has not yet been found. Some authors label this | ||
unprepared ice phase as | unprepared ice phase as ice XV. | ||
The second route is the search of new ices at high pressure and/or high | The second route is the search of new ices at high pressure and/or high | ||
temperature. This route is being object of an intensive activity, both | temperature. This route is being object of an intensive activity, both | ||
experimental and theorical. Recently, a [[plastic crystal phase of water]] | |||
has been found by molecular simulation for some water potential models | has been found by molecular simulation for some water potential models | ||
( | (SPC/E, TIP4P, TIP5P and TIP4P/2005)<ref>[http://www.rsc.org/Publishing/Journals/CP/article.asp?doi=b812834k J.L. Aragones, M.M. Conde, E.G. Noya & C. Vega, Phys. Chem. Chem. Phys., 2009, 11, 543 - 555, DOI: 10.1039/b812834k]</ref>. | ||
<ref>[http:// | This plastic crystal was not also | ||
This plastic crystal | prepared, but the authors has labelled it as ice XV. | ||
prepared | |||
The phases of ice have been labelled with the Roman numerals I-XIV in the | The phases of ice have been labelled with the Roman numerals I-XIV in the | ||
approximate order in which they were produced experimentally. Therefore, | approximate order in which they were produced experimentally. Therefore, | ||
we have to wait for which of these phases is prepared to know what will | |||
the ice XV. | |||
==References== | ==References== | ||
<references/> | <references/> | ||
'''Related publications''' | '''Related publications''' | ||
*[http:// | *[http://www.nature.com/nature/journal/v397/n6719/full/397503a0.html Paul Loubeyre, René LeToullec, Elodie Wolanin, Michel Hanfland & Daniel Hausermann, Nature 397, 503-506 (1999)] | ||
* [http:// | * [http://prola.aps.org/abstract/PRL/v76/i16/p2934_1 M. Benoit, M. Bernasconi, P. Focher, and M. Parrinello, Phys. Rev. Lett. 76, 2934 - 2936 (1996)] | ||
* [http:// | * [http://www.informaworld.com/smpp/content~content=a903069904~db=all~order=page Beate Schwager & Reinhard Boehler, High Pressure Research 28, 431 (2008)] | ||