Disordered structure of D2O ice VII from i n s i t u neutron powder diffraction
Open Access
- 1 July 1985
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 83 (1) , 329-333
- https://doi.org/10.1063/1.449867
Abstract
Neutron powder diffraction data have been collected for the ice VII phase of D2O at 26 kbar and 22 °C by the time‐of‐flight technique. The data confirm the cubic Pn3m space group with completely disordered hydrogen bonding. Rietveld analysis of the data to obtain a bond length and bond angle for the D2O molecule is hampered by combined static and thermal disorder of both the deuterium and oxygen atom positions. However, simple models give results which are consistent with the D2O molecule parameters for other ice structures.Keywords
This publication has 12 references indexed in Scilit:
- Structure and hydrogen ordering in ices VI, VII, and VIII by neutron powder diffractionThe Journal of Chemical Physics, 1984
- Structure of D2O ice VIII from i n s i t u powder neutron diffractionThe Journal of Chemical Physics, 1984
- New High-Pressure Phase ofO: Ice XPhysical Review Letters, 1984
- Rietveld refinement with spallation neutron powder diffraction dataJournal of Applied Crystallography, 1982
- Isothermal equations of state for H2O-VII and D2O-VIIJournal of Applied Physics, 1982
- Raman and x-ray investigations of ice VII to 36.0 GPaThe Journal of Chemical Physics, 1982
- Compression mechanisms in α-quartz structures—SiO2 and GeO2Journal of Applied Physics, 1978
- On a nearly proton-ordered structure for ice IXThe Journal of Chemical Physics, 1973
- Ordered Proton Configuration in Ice II, from Single-Crystal Neutron DiffractionThe Journal of Chemical Physics, 1971
- The crystal structure of bismuth-II at 26 kbarPhysics Letters A, 1967