The compound described by Mg(WO3)2 crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded to four equivalent O(2) and eight equivalent O(3) atoms to form distorted MgO12 cuboctahedra that share corners with four equivalent Mg(1)O12 cuboctahedra, faces with four equivalent Mg(1)O12 cuboctahedra, and faces with eight equivalent W(1)O6 octahedra. W(1) is bonded to one O(1), one O(2), and four equivalent O(3) atoms to form WO6 octahedra that share corners with six equivalent W(1)O6 octahedra and faces with four equivalent Mg(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-13°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded in a linear geometry to four equivalent Mg(1) and two equivalent W(1) atoms. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Mg(1) and two equivalent W(1) atoms. is represented by the CIF card [CIF]
data_Mg(WO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.939
_cell_length_b   3.939
_cell_length_c   7.829
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   121.485
_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  0.500  0.500  0.750  1.0
  W  W1  1  0.000  0.000  0.005  1.0
  W  W2  1  0.000  0.000  0.495  1.0
  O  O3  1  0.000  0.000  0.250  1.0
  O  O4  1  0.000  0.000  0.750  1.0
  O  O5  1  0.000  0.500  0.976  1.0
  O  O6  1  0.000  0.500  0.524  1.0
  O  O7  1  0.500  0.000  0.976  1.0
  O  O8  1  0.500  0.000  0.524  1.0
[/CIF]
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The compound described by Mg(WO3)2 crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded to four equivalent O(2) and eight equivalent O(3) atoms to form distorted MgO12 cuboctahedra that share corners with four equivalent Mg(1)O12 cuboctahedra, faces with four equivalent Mg(1)O12 cuboctahedra, and faces with eight equivalent W(1)O6 octahedra. W(1) is bonded to one O(1), one O(2), and four equivalent O(3) atoms to form WO6 octahedra that share corners with six equivalent W(1)O6 octahedra and faces with four equivalent Mg(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-13°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded in a linear geometry to four equivalent Mg(1) and two equivalent W(1) atoms. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Mg(1) and two equivalent W(1) atoms. is represented by the CIF card [CIF]
data_Mg(WO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.939
_cell_length_b   3.939
_cell_length_c   7.829
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   121.485
_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  0.500  0.500  0.750  1.0
  W  W1  1  0.000  0.000  0.005  1.0
  W  W2  1  0.000  0.000  0.495  1.0
  O  O3  1  0.000  0.000  0.250  1.0
  O  O4  1  0.000  0.000  0.750  1.0
  O  O5  1  0.000  0.500  0.976  1.0
  O  O6  1  0.000  0.500  0.524  1.0
  O  O7  1  0.500  0.000  0.976  1.0
  O  O8  1  0.500  0.000  0.524  1.0
[/CIF]
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