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Figure 1
Building blocks for the i-YbCd5.7 QC model. (a) Successive shells of the Tsai-type rhombic triacontahedron (RTH) cluster. The radius of the RTH cluster is 7.8 Å along the twofold direction. (b) Double Friauf polyhedron (DFP) with edge length about 5.7 Å. Two different RTH cluster connections, (c) b-linkage, (d) c-linkage.

IUCrJ
Volume 3| Part 4| July 2016| Pages 247-258
ISSN: 2052-2525
doi:10.1107/S2052252516007041