Materials Data on HoSeF by Materials Project
HoSeF crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ho3+ is bonded to four equivalent Se2- and three equivalent F1- atoms to form a mixture of distorted corner and edge-sharing HoSe4F3 pentagonal bipyramids. There are two shorter (2.84 Å) and two longer (2.93 Å) Ho–Se bond lengths. There are two shorter (2.29 Å) and one longer (2.36 Å) Ho–F bond lengths. Se2- is bonded in a 4-coordinate geometry to four equivalent Ho3+ and one F1- atom. The Se–F bond length is 3.10 Å. F1- is bonded in a distorted trigonal planar geometry to three equivalent Ho3+ and one Se2- atom.
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