BELL, Anthony M. T. and HENDERSON, C. Michael B. (2016). Rietveld refinements of the crystal structures of Rb2XSi5O12 (X = Mn, Ni). In: British Crystallographic Association Spring Meeting, University of Nottingham, 4-7 April 2016. (Unpublished)
AMTB BCA poster 2016.pdf
Available under License All rights reserved.
Download (639kB) | Preview
Poster Number: CCG06 Synthetic analogues of the silicate framework mineral leucite (KAlSi2O6) with the stoichiometry Rb2XSi5O12 (X = Mn, Ni) have been prepared by high temperature solid-state synthesis. Ambient temperature X-ray powder diffraction data have been collected on these samples. Analysis of these powder diffraction data show that these samples both consist of single phases  isostructural with the Pbca cation-ordered framework leucite structure of Cs2CdSi5O12 . Rietveld refinement  shows that for X = Mn this crystal structure has complete Mn and Si cation order over the tetrahredrally coordinated sites (T-sites) in the silicate framework. However, for X = Ni, Rietveld refinement suggests that there may be some Ni and Si cation T-site cation disorder.
|Item Type:||Conference or Workshop Item (Poster)|
|Depositing User:||Anthony Bell|
|Date Deposited:||28 Jul 2016 15:25|
|Last Modified:||19 Oct 2016 18:30|
Actions (login required)
Downloads per month over past year