The material structure described by Mg(WO2)2 is Spinel-like structured and crystallizes in the orthorhombic Imma space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent W(1)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with four equivalent W(2)O6 octahedra. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form WO4 tetrahedra that share corners with six equivalent Mg(1)O6 octahedra and corners with six equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-64°. In the second W site, W(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form WO6 octahedra that share corners with six equivalent W(1)O4 tetrahedra, edges with two equivalent W(2)O6 octahedra, and edges with four equivalent Mg(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Mg(1), one W(1), and one W(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), one W(1), and two equivalent W(2) atoms. is represented by the CIF file [CIF]
data_Mg(WO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.352
_cell_length_b   6.352
_cell_length_c   6.352
_cell_angle_alpha   121.199
_cell_angle_beta   117.894
_cell_angle_gamma   90.811
_symmetry_Int_Tables_number   1
_cell_volume   182.272
_cell_formula_units_Z   2
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  0.500  0.500  1.0
  Mg  Mg1  1  0.500  0.500  0.000  1.0
  W  W2  1  0.100  0.850  0.250  1.0
  W  W3  1  0.900  0.150  0.750  1.0
  W  W4  1  0.500  0.000  0.000  1.0
  W  W5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.745  0.257  0.013  1.0
  O  O7  1  0.742  0.265  0.477  1.0
  O  O8  1  0.745  0.732  0.487  1.0
  O  O9  1  0.288  0.265  0.023  1.0
  O  O10  1  0.712  0.735  0.977  1.0
  O  O11  1  0.258  0.735  0.523  1.0
  O  O12  1  0.255  0.268  0.513  1.0
  O  O13  1  0.255  0.743  0.987  1.0
[/CIF]
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The material structure described by Mg(WO2)2 is Spinel-like structured and crystallizes in the orthorhombic Imma space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent W(1)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with four equivalent W(2)O6 octahedra. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form WO4 tetrahedra that share corners with six equivalent Mg(1)O6 octahedra and corners with six equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-64°. In the second W site, W(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form WO6 octahedra that share corners with six equivalent W(1)O4 tetrahedra, edges with two equivalent W(2)O6 octahedra, and edges with four equivalent Mg(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Mg(1), one W(1), and one W(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), one W(1), and two equivalent W(2) atoms. is represented by the CIF file [CIF]
data_Mg(WO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.352
_cell_length_b   6.352
_cell_length_c   6.352
_cell_angle_alpha   121.199
_cell_angle_beta   117.894
_cell_angle_gamma   90.811
_symmetry_Int_Tables_number   1
_cell_volume   182.272
_cell_formula_units_Z   2
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  0.500  0.500  1.0
  Mg  Mg1  1  0.500  0.500  0.000  1.0
  W  W2  1  0.100  0.850  0.250  1.0
  W  W3  1  0.900  0.150  0.750  1.0
  W  W4  1  0.500  0.000  0.000  1.0
  W  W5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.745  0.257  0.013  1.0
  O  O7  1  0.742  0.265  0.477  1.0
  O  O8  1  0.745  0.732  0.487  1.0
  O  O9  1  0.288  0.265  0.023  1.0
  O  O10  1  0.712  0.735  0.977  1.0
  O  O11  1  0.258  0.735  0.523  1.0
  O  O12  1  0.255  0.268  0.513  1.0
  O  O13  1  0.255  0.743  0.987  1.0
[/CIF]
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