The crystal structure of methane B at 8 GPa—an α-Mn arrangement of molecules
dc.contributor.author | Maynard-Casely, HE | en_AU |
dc.contributor.author | Lundegaard, LF | en_AU |
dc.contributor.author | Loa, I | en_AU |
dc.contributor.author | McMahon, MI | en_AU |
dc.contributor.author | Gregoryanz, E | en_AU |
dc.contributor.author | Nelmes, RJ | en_AU |
dc.contributor.author | Loveday, JS | en_AU |
dc.date.accessioned | 2016-09-30T01:31:14Z | en_AU |
dc.date.available | 2016-09-30T01:31:14Z | en_AU |
dc.date.issued | 2014-12-18 | en_AU |
dc.date.statistics | 2016-09-30 | en_AU |
dc.description.abstract | From a combination of powder and single-crystal synchrotron x-ray diffraction data we have determined the carbon substructure of phase B of methane at a pressure of ∼8 GPa. We find this substructure to be cubic with space group I4 ¯ 3m I4¯3m and 58 molecules in the unit cell. The unit cell has a lattice parameter a = 11.911(1) Å at 8.3(2) GPa, which is a factor of √2 larger than had previously been proposed by Umemoto et al. [J. Phys.: Condens. Matter14, 10675 (2002)]. The substructure as now solved is not related to any close-packed arrangement, contrary to previous proposals. Surprisingly, the arrangement of the carbon atoms is isostructural with that of α-manganese at ambient conditions. © 2014, AIP Publishing LLC. | en_AU |
dc.identifier.articlenumber | 234313 | en_AU |
dc.identifier.citation | Maynard-Casely, H. E., Lundegaard, L. F., Loa, I., McMahon, M. I., Gregoryanz, E., Nelmes, R. J., & Loveday, J. S. (2014). The crystal structure of methane B at 8 GPa—an α-Mn arrangement of molecules. The Journal of Chemical Physics, 141(23), 234313. doi: doi:10.1063/1.4903813 | en_AU |
dc.identifier.govdoc | 7204 | en_AU |
dc.identifier.issn | 1089-7690 | en_AU |
dc.identifier.issue | 23 | en_AU |
dc.identifier.journaltitle | The Journal of Chemical Physics | en_AU |
dc.identifier.uri | http://dx.doi.org/10.1063/1.4903813 | en_AU |
dc.identifier.uri | http://apo.ansto.gov.au/dspace/handle/10238/7621 | en_AU |
dc.identifier.volume | 141 | en_AU |
dc.language.iso | en | en_AU |
dc.publisher | AIP Scitation | en_AU |
dc.subject | X-ray diffraction | en_AU |
dc.subject | Synchrotrons | en_AU |
dc.subject | Data | en_AU |
dc.subject | Molecules | en_AU |
dc.subject | Carbon | en_AU |
dc.subject | Atoms | en_AU |
dc.title | The crystal structure of methane B at 8 GPa—an α-Mn arrangement of molecules | en_AU |
dc.type | Journal Article | en_AU |
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