The compound described by 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. is represented by the CIF card [CIF]
data_MgV2Te2O7F2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.985
_cell_length_b   5.360
_cell_length_c   7.612
_cell_angle_alpha   102.342
_cell_angle_beta   90.550
_cell_angle_gamma   105.013
_symmetry_Int_Tables_number   1
_cell_volume   191.438
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.000  0.000  0.500  1.0
  V  V1  1  0.727  0.377  0.369  1.0
  V  V2  1  0.273  0.623  0.631  1.0
  Te  Te3  1  0.661  0.291  0.852  1.0
  Te  Te4  1  0.339  0.709  0.148  1.0
  O  O5  1  0.249  0.968  0.709  1.0
  O  O6  1  0.112  0.650  0.368  1.0
  O  O7  1  0.751  0.032  0.291  1.0
  O  O8  1  0.502  0.579  0.845  1.0
  O  O9  1  0.498  0.421  0.155  1.0
  O  O10  1  0.888  0.350  0.632  1.0
  O  O11  1  0.000  0.500  0.000  1.0
  F  F12  1  0.339  0.272  0.465  1.0
  F  F13  1  0.661  0.728  0.535  1.0
[/CIF]
.
The compound described by 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. is represented by the CIF card [CIF]
data_MgV2Te2O7F2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.985
_cell_length_b   5.360
_cell_length_c   7.612
_cell_angle_alpha   102.342
_cell_angle_beta   90.550
_cell_angle_gamma   105.013
_symmetry_Int_Tables_number   1
_cell_volume   191.438
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.000  0.000  0.500  1.0
  V  V1  1  0.727  0.377  0.369  1.0
  V  V2  1  0.273  0.623  0.631  1.0
  Te  Te3  1  0.661  0.291  0.852  1.0
  Te  Te4  1  0.339  0.709  0.148  1.0
  O  O5  1  0.249  0.968  0.709  1.0
  O  O6  1  0.112  0.650  0.368  1.0
  O  O7  1  0.751  0.032  0.291  1.0
  O  O8  1  0.502  0.579  0.845  1.0
  O  O9  1  0.498  0.421  0.155  1.0
  O  O10  1  0.888  0.350  0.632  1.0
  O  O11  1  0.000  0.500  0.000  1.0
  F  F12  1  0.339  0.272  0.465  1.0
  F  F13  1  0.661  0.728  0.535  1.0
[/CIF]
.