MgMn2P2(O4F)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(8), and one F(1) atom to form distorted MgO5F pentagonal pyramids that share  a cornercorner with one Mn(2)O4F2 octahedra, corners with two equivalent Mn(1)O4F2 octahedra,  a cornercorner with one P(2)O4 tetrahedra,  an edgeedge with one Mn(1)O4F2 octahedra,  an edgeedge with one Mn(2)O4F2 octahedra,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 44-63°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(5), one O(8), one F(1), and one F(2) atom to form distorted MnO4F2 octahedra that share corners with two equivalent Mn(2)O4F2 octahedra, corners with two equivalent Mg(1)O5F pentagonal pyramids, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one Mg(1)O5F pentagonal pyramid. The corner-sharing octahedral tilt angles range from 46-55°. In the second Mn site, Mn(2) is bonded to one O(3), one O(4), one O(6), one O(7), one F(1), and one F(2) atom to form MnO4F2 octahedra that share corners with two equivalent Mn(1)O4F2 octahedra,  a cornercorner with one Mg(1)O5F pentagonal pyramid, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one Mg(1)O5F pentagonal pyramid. The corner-sharing octahedral tilt angles range from 46-55°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O4F2 octahedra, corners with two equivalent Mn(2)O4F2 octahedra, and  an edgeedge with one Mg(1)O5F pentagonal pyramid. The corner-sharing octahedral tilt angles range from 36-49°. In the second P site, P(2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O4F2 octahedra, corners with two equivalent Mn(2)O4F2 octahedra,  a cornercorner with one Mg(1)O5F pentagonal pyramid, and  an edgeedge with one Mg(1)O5F pentagonal pyramid. The corner-sharing octahedral tilt angles range from 34-52°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one P(2) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Mn(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(1) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(1) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(1), and one P(1) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mn(1), and one Mn(2) atom. In the second F site, F(2) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one Mn(2) atom.
MgMn2P2(O4F)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(8), and one F(1) atom to form distorted MgO5F pentagonal pyramids that share  a cornercorner with one Mn(2)O4F2 octahedra, corners with two equivalent Mn(1)O4F2 octahedra,  a cornercorner with one P(2)O4 tetrahedra,  an edgeedge with one Mn(1)O4F2 octahedra,  an edgeedge with one Mn(2)O4F2 octahedra,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 44-63°. The Mg(1)-O(2) bond length is 2.11 Å. The Mg(1)-O(3) bond length is 2.15 Å. The Mg(1)-O(4) bond length is 2.19 Å. The Mg(1)-O(5) bond length is 2.26 Å. The Mg(1)-O(8) bond length is 2.17 Å. The Mg(1)-F(1) bond length is 2.01 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(5), one O(8), one F(1), and one F(2) atom to form distorted MnO4F2 octahedra that share corners with two equivalent Mn(2)O4F2 octahedra, corners with two equivalent Mg(1)O5F pentagonal pyramids, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one Mg(1)O5F pentagonal pyramid. The corner-sharing octahedral tilt angles range from 46-55°. The Mn(1)-O(1) bond length is 1.92 Å. The Mn(1)-O(2) bond length is 2.30 Å. The Mn(1)-O(5) bond length is 2.16 Å. The Mn(1)-O(8) bond length is 1.94 Å. The Mn(1)-F(1) bond length is 2.01 Å. The Mn(1)-F(2) bond length is 1.89 Å. In the second Mn site, Mn(2) is bonded to one O(3), one O(4), one O(6), one O(7), one F(1), and one F(2) atom to form MnO4F2 octahedra that share corners with two equivalent Mn(1)O4F2 octahedra,  a cornercorner with one Mg(1)O5F pentagonal pyramid, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one Mg(1)O5F pentagonal pyramid. The corner-sharing octahedral tilt angles range from 46-55°. The Mn(2)-O(3) bond length is 2.02 Å. The Mn(2)-O(4) bond length is 1.97 Å. The Mn(2)-O(6) bond length is 1.91 Å. The Mn(2)-O(7) bond length is 1.91 Å. The Mn(2)-F(1) bond length is 2.30 Å. The Mn(2)-F(2) bond length is 2.10 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O4F2 octahedra, corners with two equivalent Mn(2)O4F2 octahedra, and  an edgeedge with one Mg(1)O5F pentagonal pyramid. The corner-sharing octahedral tilt angles range from 36-49°. The P(1)-O(5) bond length is 1.55 Å. The P(1)-O(6) bond length is 1.54 Å. The P(1)-O(7) bond length is 1.53 Å. The P(1)-O(8) bond length is 1.59 Å. In the second P site, P(2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O4F2 octahedra, corners with two equivalent Mn(2)O4F2 octahedra,  a cornercorner with one Mg(1)O5F pentagonal pyramid, and  an edgeedge with one Mg(1)O5F pentagonal pyramid. The corner-sharing octahedral tilt angles range from 34-52°. The P(2)-O(1) bond length is 1.54 Å. The P(2)-O(2) bond length is 1.55 Å. The P(2)-O(3) bond length is 1.56 Å. The P(2)-O(4) bond length is 1.57 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one P(2) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Mn(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(1) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(1) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(1), and one P(1) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mn(1), and one Mn(2) atom. In the second F site, F(2) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one Mn(2) atom.