KHo3F10 crystallizes in the cubic Fm-3m space group. K(1) is bonded in a distorted tetrahedral geometry to four equivalent F(2) atoms. Ho(1) is bonded in a 8-coordinate geometry to four equivalent F(1) and four equivalent F(2) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Ho(1) atoms. In the second F site, F(2) is bonded to one K(1) and three equivalent Ho(1) atoms to form a mixture of corner and edge-sharing FKHo3 tetrahedra.
KHo3F10 crystallizes in the cubic Fm-3m space group. K(1) is bonded in a distorted tetrahedral geometry to four equivalent F(2) atoms. All K(1)-F(2) bond lengths are 2.73 Å. Ho(1) is bonded in a 8-coordinate geometry to four equivalent F(1) and four equivalent F(2) atoms. All Ho(1)-F(1) bond lengths are 2.18 Å. All Ho(1)-F(2) bond lengths are 2.33 Å. There are two inequivalent F sites. In the first F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Ho(1) atoms. In the second F site, F(2) is bonded to one K(1) and three equivalent Ho(1) atoms to form a mixture of corner and edge-sharing FKHo3 tetrahedra.