MgSmF4 crystallizes in the orthorhombic Cmcm space group. Mg(1) is bonded to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms to form distorted corner-sharing MgF6 octahedra. The corner-sharing octahedral tilt angles range from 0-28°. Sm(1) is bonded in a 6-coordinate geometry to six equivalent F(2) atoms. There are three inequivalent F sites. In the first F site, F(1) is bonded in a linear geometry to two equivalent Mg(1) atoms. In the second F site, F(2) is bonded to one Mg(1) and three equivalent Sm(1) atoms to form a mixture of edge and corner-sharing FSm3Mg tetrahedra. In the third F site, F(3) is bonded in a bent 150 degrees geometry to two equivalent Mg(1) atoms.
MgSmF4 crystallizes in the orthorhombic Cmcm space group. Mg(1) is bonded to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms to form distorted corner-sharing MgF6 octahedra. The corner-sharing octahedral tilt angles range from 0-28°. Both Mg(1)-F(1) bond lengths are 1.91 Å. Both Mg(1)-F(2) bond lengths are 2.25 Å. Both Mg(1)-F(3) bond lengths are 1.97 Å. Sm(1) is bonded in a 6-coordinate geometry to six equivalent F(2) atoms. All Sm(1)-F(2) bond lengths are 2.45 Å. There are three inequivalent F sites. In the first F site, F(1) is bonded in a linear geometry to two equivalent Mg(1) atoms. In the second F site, F(2) is bonded to one Mg(1) and three equivalent Sm(1) atoms to form a mixture of edge and corner-sharing FSm3Mg tetrahedra. In the third F site, F(3) is bonded in a bent 150 degrees geometry to two equivalent Mg(1) atoms.