![]() ![]() 3, (a-iii)) is composed of thirty-two Al(4) and eight Al(6) sites, indicating the atomic arrangement of a pseudo-Mackay cluster (pMC). 3, (a-i)) composed of eight Al(5) sites, and the outer shell of the Al distorted icosidodecahedron (Al-ICSID Fig. The H-ICO has the inner shell of an Al-cube ( Fig. ![]() The (a-iii)-(a-iii) and (a-iii)-(b-i) connections are also shown. An HM-iICO has an inner Al icosahedron (Al-ICO (b-ii)) and is covered by the large outer Al cube (Al-Lcube (b-iii)). The irregularly shaped icosahedron around the M(2) sites (HM-iICO (b-i)) is also drawn. An H-ICO has an inner Al cube (Al-cube (a-i)) and an outer Al distorted icosidodecahedron (Al-ICSID (a-iii)). Regular icosahedron around M(1) (=Ru/Ni) sites (H-ICO (a-ii)). An HM-iICO is also connected to six HM-iICOs, sharing an edge in the direction of the twofold axis, and to eight H-ICOs, sharing a triangular face in the direction of the threefold axis. 2), respectively, an H-ICO is connected to six neighboring H-ICOs in the direction of the twofold axis, sharing an edge, and to eight HM-iICOs in the direction of the threefold axis, sharing a triangular face. The structure of C-AlRuNi was determined by single-crystal X-ray diffraction (space group $Pm\bar$ in site symmetry Fig. ![]()
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