Ice VIII
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Ice VIII is the ordered form of ice VII. It is composed of two ice Ic sub-lattices that are inter-penetrating. There are no hydrogen bonds between these sub-lattices. This results in a tetragonal structure with the I41/amd space group and eight molecules per unit cell.
References[edit]
Related reading
- G. P. Johari, A. Lavergne, and E. Whalley "Dielectric properties of ice VII and VIII and the phase boundary between ice VI and VII", Journal of Chemical Physics 61 pp. 4292-4300 (1974)
- W. F. Kuhs, J. L. Finney, C. Vettier and D. V. Bliss "Structure and hydrogen ordering in ices VI, VII, and VIII by neutron powder diffraction", Journal of Chemical Physics 81 pp. 3612-3623 (1984)
- Roger W. Impey, Michael L. Klein, and John S. Tse "Effective pair potentials and the structure of ices VIII and IX", Journal of Chemical Physics 81 pp. 6406-6407 (1984)
- D. D. Klug, Y. P. Handa, J. S. Tse, and Edward Whalley "Transformation of ice VIII to amorphous ice by ``melting at low temperature", Journal of Chemical Physics 90 pp. 2390-2392 (1989)
- Ph. Pruzan, J. C. Chervin, and B. Canny "Stability domain of the ice VIII proton-ordered phase at very high pressure and low temperature", Journal of Chemical Physics 99 pp. 9842-9846 (1993)
- S. Dong, A. I. Kolesnikov and J.-C. Li "Lattice Dynamical Calculations of Ice VIII", Journal of Physical Chemistry B 101 pp. 6087–6089 (1997)
- John S. Tse, Vladimir P. Shpakov and Vladimir R. Belosludov "Vibrational spectrum, elastic moduli and mechanical stability in ice VIII", Journal of Chemical Physics 111 pp. 11111-11116 (1999)
- Carl McBride, Carlos Vega, Eduardo Sanz, and Jose L. F. Abascal "Formation of high density amorphous ice by decompression of ice VII and ice VIII at 135 K", Journal of Chemical Physics 121 pp. 11907-11911 (2004)
- Yukihiro Yoshimura, Sarah T. Stewart, Maddury Somayazulu, Ho-kwang Mao, and Russell J. Hemley "High-pressure x-ray diffraction and Raman spectroscopy of ice VIII", Journal of Chemical Physics 124 024502 (2006)
- Carlos Vega, Carl McBride, Eduardo Sanz and Jose L. F. Abascal "Radial distribution functions and densities for the SPC/E, TIP4P and TIP5P models for liquid water and ices Ih, Ic, II, III, IV, V, VI, VII, VIII, IX, XI and XII", Physical Chemistry Chemical Physics 7 pp. 1450 - 1456 (2005)
- Sherwin J. Singer, Jer-Lai Kuo, Tomas K. Hirsch, Chris Knight, Lars Ojamäe, and Michael L. Klein "Hydrogen-Bond Topology and the Ice VII/VIII and Ice Ih/XI Proton-Ordering Phase Transitions", Physical Review Letters 94 135701 (2005)