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Figure 20
Configurations of the RE elements on the icosahedral clusters in (a) a 1/1 PA and (b) a 2/1 PA, where the different colours in (b) denote five symmetrically inequivalent RE sites (RE1–RE5). (c) The distribution of interatomic distances r for the 1/1 and 2/1 PAs within the range of 3–12 Å, measured from a reference RE atom to surrounding RE atoms; duplicate distances are removed and the bin size is set to 0.05 Å. For the 2/1 PA, the r distributions are calculated separately for each inequivalent RE site (RE1–RE5). The black bars represent intra-cluster distances within a single icosahedron composed of 12 RE moments. The top panel corresponds to the 1/1 PA, while the lower panels show the distributions for the RE1–RE5 sites in the 2/1 PA, revealing 11 distinct interatomic distances (Labib et al., 2024bView full citation).

IUCrJ
Volume 13| Part 5| September 2026| Pages 552-579
ISSN: 2052-2525
https://doi.org/10.1107/S2052252526006263