Materials Data on Ho2MgS4 by Materials Project

MgHo2S4 is Spinel structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Mg2+ is bonded to four equivalent S2- atoms to form MgS4 tetrahedra that share corners with twelve equivalent HoS6 octahedra. The corner-sharing octahedral tilt angles are 56°. All Mg–S bond lengths are 2.50 Å. Ho3+ is bonded to six equivalent S2- atoms to form HoS6 octahedra that share corners with six equivalent MgS4 tetrahedra and edges with six equivalent HoS6 octahedra. All Ho–S bond lengths are 2.73 Å. S2- is bonded in a distorted rectangular see-saw-like geometry to one Mg2+ and three equivalent Ho3+ atoms.