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Figure 8
(a) The result of the refinement of 399 atomic parameters (positions, atomic displacement parameters, site-occupancy factors), 20 parameters being moments of the distributions plus two others (phasonic bph and extinction). A Gaussian Debye–Waller factor was used alongside the second-moment approximation. The agreement factor R = 6.08%. (b) The result of the refinement of 399 atomic parameters (positions, atomic displacement parameters, site-occupancy factors), 20 parameters being moments of the distributions and extinction. A Gaussian Debye–Waller factor was not used in the refinement, only the second-moment approximation. The agreement factor R = 6.73%. The final atomic decoration is plotted for two rhombuses. The shown atomic decoration is a projection of the decoration for two classes of rhombuses and two layers. Blue denotes Al atoms, green Cu and red Rh. The rhombus edge length is 17.19 Å.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 53| Part 4| August 2020| Pages 904-913
https://doi.org/10.1107/S1600576720006251
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