KBeDyF6 crystallizes in the monoclinic P2_1/m space group. K(1) is bonded in a 12-coordinate geometry to one F(2), three equivalent F(4), four equivalent F(1), and four equivalent F(3) atoms. Be(1) is bonded in a tetrahedral geometry to one F(2), one F(4), and two equivalent F(1) atoms. Dy(1) is bonded in a 8-coordinate geometry to one F(2), one F(4), two equivalent F(1), and four equivalent F(3) atoms. There are four inequivalent F sites. In the first F site, F(1) is bonded in a 2-coordinate geometry to two equivalent K(1), one Be(1), and one Dy(1) atom. In the second F site, F(2) is bonded in a distorted bent 150 degrees geometry to one K(1), one Be(1), and one Dy(1) atom. In the third F site, F(3) is bonded to two equivalent K(1) and two equivalent Dy(1) atoms to form a mixture of distorted corner and edge-sharing FK2Dy2 tetrahedra. In the fourth F site, F(4) is bonded in a distorted single-bond geometry to three equivalent K(1), one Be(1), and one Dy(1) atom.
KBeDyF6 crystallizes in the monoclinic P2_1/m space group. K(1) is bonded in a 12-coordinate geometry to one F(2), three equivalent F(4), four equivalent F(1), and four equivalent F(3) atoms. The K(1)-F(2) bond length is 3.27 Å. There are two shorter (3.01 Å) and one longer (3.15 Å) K(1)-F(4) bond length. There are two shorter (3.06 Å) and two longer (3.11 Å) K(1)-F(1) bond lengths. There are two shorter (2.77 Å) and two longer (2.83 Å) K(1)-F(3) bond lengths. Be(1) is bonded in a tetrahedral geometry to one F(2), one F(4), and two equivalent F(1) atoms. The Be(1)-F(2) bond length is 1.54 Å. The Be(1)-F(4) bond length is 1.57 Å. Both Be(1)-F(1) bond lengths are 1.57 Å. Dy(1) is bonded in a 8-coordinate geometry to one F(2), one F(4), two equivalent F(1), and four equivalent F(3) atoms. The Dy(1)-F(2) bond length is 2.29 Å. The Dy(1)-F(4) bond length is 2.40 Å. Both Dy(1)-F(1) bond lengths are 2.26 Å. All Dy(1)-F(3) bond lengths are 2.28 Å. There are four inequivalent F sites. In the first F site, F(1) is bonded in a 2-coordinate geometry to two equivalent K(1), one Be(1), and one Dy(1) atom. In the second F site, F(2) is bonded in a distorted bent 150 degrees geometry to one K(1), one Be(1), and one Dy(1) atom. In the third F site, F(3) is bonded to two equivalent K(1) and two equivalent Dy(1) atoms to form a mixture of distorted corner and edge-sharing FK2Dy2 tetrahedra. In the fourth F site, F(4) is bonded in a distorted single-bond geometry to three equivalent K(1), one Be(1), and one Dy(1) atom.