Knorr, K., Braunbarth, C. M., van de Goor, G., Behrens, P., Griewatsch, C. and Depmeier, W. (2000) High-pressure study on dioxolane silica sodalite (C3H6O2)2[Si12O24]--neutron and X-ray powder diffraction experiments. Solid State Communications, 113 (9). pp. 503-507. DOI 10.1016/s0038-1098(99)00516-5.

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Abstract

Neutron and X-ray high-pressure powder-diffraction experiments on silica sodalite with 1,3-dioxolane as a template molecule, (C3H6O2)2[Si12O24], were performed up to a maximum pressure of 2.7 GPa. A phase transition from the fully expanded structure at ambient pressure, space group to the acentric space group was derived from the observed compression behaviour. A ferro-elastic phase transition appears at about 1.2 GPa to the rhombohedral crystal system. From symmetry analysis and the observed transition behaviour the space groups R3 or R3m are proposed for p>1.2 GPa.

Document Type:	Article
Keywords:	A. Insulators C. Crystal structure and symmetry D. Phase transitions E. Strain, high pressure
Research affiliation:	Kiel University
Refereed:	Yes
Date Deposited:	02 Feb 2012 09:13
Last Modified:	28 Mar 2018 10:17
URI:	https://oceanrep.geomar.de/id/eprint/16343

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