Materials Data on Ho2Mg by Materials Project
MgHo2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Mg is bonded in a distorted body-centered cubic geometry to eight Ho atoms. There are a spread of Mg–Ho bond distances ranging from 3.30–3.34 Å. There are two inequivalent Ho sites. In the first Ho site, Ho is bonded to six equivalent Mg and six Ho atoms to form a mixture of distorted face, edge, and corner-sharing HoHo6Mg6 cuboctahedra. There are a spread of Ho–Ho bond distances ranging from 3.54–3.63 Å. In the second Ho site, Ho is bonded to two equivalent Mg and ten Ho atoms to form a mixture of distorted face, edge, and corner-sharing HoHo10Mg2 cuboctahedra. There are four shorter (3.38 Å) and two longer (3.63 Å) Ho–Ho bond lengths.
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