MgV2Te2O7F2 crystallizes in the triclinic P-1 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent F(1) atoms to form MgO4F2 octahedra that share corners with two equivalent V(1)O4F2 octahedra, corners with four equivalent Te(1)O5 square pyramids, and edges with four equivalent V(1)O4F2 octahedra. The corner-sharing octahedral tilt angles are 29°. V(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent F(1) atoms to form distorted VO4F2 octahedra that share  a cornercorner with one Mg(1)O4F2 octahedra, corners with five equivalent Te(1)O5 square pyramids, edges with two equivalent Mg(1)O4F2 octahedra, and edges with two equivalent V(1)O4F2 octahedra. The corner-sharing octahedral tilt angles are 29°. Te(1) is bonded to one O(1), one O(2), one O(4), and two equivalent O(3) atoms to form distorted TeO5 square pyramids that share corners with two equivalent Mg(1)O4F2 octahedra, corners with five equivalent V(1)O4F2 octahedra,  a cornercorner with one Te(1)O5 square pyramid, and  an edgeedge with one Te(1)O5 square pyramid. The corner-sharing octahedral tilt angles range from 53-68°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one V(1), and one Te(1) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), two equivalent V(1), and one Te(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one V(1) and two equivalent Te(1) atoms. In the fourth O site, O(4) is bonded in a linear geometry to two equivalent Te(1) atoms. F(1) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1) and two equivalent V(1) atoms.
MgV2Te2O7F2 crystallizes in the triclinic P-1 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent F(1) atoms to form MgO4F2 octahedra that share corners with two equivalent V(1)O4F2 octahedra, corners with four equivalent Te(1)O5 square pyramids, and edges with four equivalent V(1)O4F2 octahedra. The corner-sharing octahedral tilt angles are 29°. Both Mg(1)-O(1) bond lengths are 2.07 Å. Both Mg(1)-O(2) bond lengths are 2.14 Å. Both Mg(1)-F(1) bond lengths are 1.99 Å. V(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent F(1) atoms to form distorted VO4F2 octahedra that share  a cornercorner with one Mg(1)O4F2 octahedra, corners with five equivalent Te(1)O5 square pyramids, edges with two equivalent Mg(1)O4F2 octahedra, and edges with two equivalent V(1)O4F2 octahedra. The corner-sharing octahedral tilt angles are 29°. The V(1)-O(1) bond length is 1.85 Å. The V(1)-O(3) bond length is 2.07 Å. There is one shorter (2.09 Å) and one longer (2.20 Å) V(1)-O(2) bond length. There is one shorter (2.06 Å) and one longer (2.14 Å) V(1)-F(1) bond length. Te(1) is bonded to one O(1), one O(2), one O(4), and two equivalent O(3) atoms to form distorted TeO5 square pyramids that share corners with two equivalent Mg(1)O4F2 octahedra, corners with five equivalent V(1)O4F2 octahedra,  a cornercorner with one Te(1)O5 square pyramid, and  an edgeedge with one Te(1)O5 square pyramid. The corner-sharing octahedral tilt angles range from 53-68°. The Te(1)-O(1) bond length is 2.39 Å. The Te(1)-O(2) bond length is 2.07 Å. The Te(1)-O(4) bond length is 1.95 Å. There is one shorter (1.92 Å) and one longer (2.47 Å) Te(1)-O(3) bond length. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one V(1), and one Te(1) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), two equivalent V(1), and one Te(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one V(1) and two equivalent Te(1) atoms. In the fourth O site, O(4) is bonded in a linear geometry to two equivalent Te(1) atoms. F(1) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1) and two equivalent V(1) atoms.