The crystal structure described by MgV(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form MgO4 tetrahedra that share corners with two equivalent V(1)O6 octahedra, corners with two equivalent W(1)O6 octahedra, and corners with three equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 12-71°. V(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form VO6 octahedra that share  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one W(2)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-27°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form distorted WO6 octahedra that share  a cornercorner with one V(1)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, edges with two equivalent V(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles are 27°. In the second W site, W(2) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted WO6 octahedra that share  a cornercorner with one V(1)O6 octahedra, corners with three equivalent Mg(1)O4 tetrahedra, edges with two equivalent V(1)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 25°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Mg(1) and one W(1) atom. In the second O site, O(2) is bonded in a water-like geometry to one V(1) and one W(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one V(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one V(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Mg(1), one V(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mg(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one V(1), one W(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a trigonal non-coplanar geometry to one V(1), one W(1), and one W(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgV(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.982
_cell_length_b   6.757
_cell_length_c   6.353
_cell_angle_alpha   105.811
_cell_angle_beta   123.430
_cell_angle_gamma   92.590
_symmetry_Int_Tables_number   1
_cell_volume   166.580
_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  0.596  0.865  0.092  1.0
  V  V1  1  0.121  0.220  0.093  1.0
  W  W2  1  0.890  0.389  0.604  1.0
  W  W3  1  0.354  0.067  0.587  1.0
  O  O4  1  0.197  0.636  0.828  1.0
  O  O5  1  0.539  0.468  0.355  1.0
  O  O6  1  0.186  0.189  0.806  1.0
  O  O7  1  0.501  0.075  0.333  1.0
  O  O8  1  0.711  0.987  0.884  1.0
  O  O9  1  0.038  0.824  0.347  1.0
  O  O10  1  0.073  0.268  0.403  1.0
  O  O11  1  0.752  0.356  0.825  1.0
[/CIF]
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The crystal structure described by MgV(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form MgO4 tetrahedra that share corners with two equivalent V(1)O6 octahedra, corners with two equivalent W(1)O6 octahedra, and corners with three equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 12-71°. V(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form VO6 octahedra that share  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one W(2)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-27°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form distorted WO6 octahedra that share  a cornercorner with one V(1)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, edges with two equivalent V(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles are 27°. In the second W site, W(2) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted WO6 octahedra that share  a cornercorner with one V(1)O6 octahedra, corners with three equivalent Mg(1)O4 tetrahedra, edges with two equivalent V(1)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 25°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Mg(1) and one W(1) atom. In the second O site, O(2) is bonded in a water-like geometry to one V(1) and one W(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one V(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one V(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Mg(1), one V(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mg(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one V(1), one W(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a trigonal non-coplanar geometry to one V(1), one W(1), and one W(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgV(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.982
_cell_length_b   6.757
_cell_length_c   6.353
_cell_angle_alpha   105.811
_cell_angle_beta   123.430
_cell_angle_gamma   92.590
_symmetry_Int_Tables_number   1
_cell_volume   166.580
_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  0.596  0.865  0.092  1.0
  V  V1  1  0.121  0.220  0.093  1.0
  W  W2  1  0.890  0.389  0.604  1.0
  W  W3  1  0.354  0.067  0.587  1.0
  O  O4  1  0.197  0.636  0.828  1.0
  O  O5  1  0.539  0.468  0.355  1.0
  O  O6  1  0.186  0.189  0.806  1.0
  O  O7  1  0.501  0.075  0.333  1.0
  O  O8  1  0.711  0.987  0.884  1.0
  O  O9  1  0.038  0.824  0.347  1.0
  O  O10  1  0.073  0.268  0.403  1.0
  O  O11  1  0.752  0.356  0.825  1.0
[/CIF]
.