The compound described by Mg(MoO2)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(4), one O(5), and two equivalent O(2) atoms to form distorted MgO4 tetrahedra that share  a cornercorner with one Mo(2)O6 octahedra,  a cornercorner with one Mo(4)O6 octahedra, corners with two equivalent Mo(3)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, and  an edgeedge with one Mo(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-39°. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 5-coordinate geometry to one O(7), two equivalent O(4), and two equivalent O(5) atoms. In the second Mo site, Mo(2) is bonded to one O(4), one O(8), two equivalent O(3), and two equivalent O(6) atoms to form MoO6 octahedra that share corners with two equivalent Mo(4)O6 octahedra,  a cornercorner with one Mg(1)O4 tetrahedra, edges with two equivalent Mo(2)O6 octahedra, and edges with two equivalent Mo(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the third Mo site, Mo(3) is bonded to one O(1), one O(6), two equivalent O(2), and two equivalent O(8) atoms to form MoO6 octahedra that share corners with two equivalent Mo(4)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, edges with two equivalent Mo(2)O6 octahedra, edges with two equivalent Mo(3)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-53°. In the fourth Mo site, Mo(4) is bonded to one O(3), one O(5), two equivalent O(1), and two equivalent O(7) atoms to form MoO6 octahedra that share corners with two equivalent Mo(2)O6 octahedra, corners with two equivalent Mo(3)O6 octahedra,  a cornercorner with one Mg(1)O4 tetrahedra, and edges with two equivalent Mo(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Mo(3) and two equivalent Mo(4) atoms. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to two equivalent Mg(1) and two equivalent Mo(3) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mo(4) and two equivalent Mo(2) atoms. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mo(2), and two equivalent Mo(1) atoms. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mo(4), and two equivalent Mo(1) atoms. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mo(3) and two equivalent Mo(2) atoms. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to one Mo(1) and two equivalent Mo(4) atoms. In the eighth O site, O(8) is bonded in a trigonal non-coplanar geometry to one Mo(2) and two equivalent Mo(3) atoms. is represented by the CIF file [CIF]
data_Mg(MoO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.244
_cell_length_b   8.307
_cell_length_c   8.141
_cell_angle_alpha   80.662
_cell_angle_beta   78.163
_cell_angle_gamma   79.294
_symmetry_Int_Tables_number   1
_cell_volume   209.250
_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  0.038  0.268  0.656  1.0
  Mo  Mo1  1  0.727  0.151  0.392  1.0
  Mo  Mo2  1  0.130  0.528  0.202  1.0
  Mo  Mo3  1  0.817  0.530  0.850  1.0
  Mo  Mo4  1  0.344  0.801  0.481  1.0
  O  O5  1  0.853  0.701  0.621  1.0
  O  O6  1  0.444  0.370  0.745  1.0
  O  O7  1  0.538  0.634  0.317  1.0
  O  O8  1  0.146  0.326  0.388  1.0
  O  O9  1  0.195  0.043  0.557  1.0
  O  O10  1  0.741  0.401  0.106  1.0
  O  O11  1  0.862  0.917  0.337  1.0
  O  O12  1  0.205  0.640  0.964  1.0
[/CIF]
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The compound described by Mg(MoO2)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(4), one O(5), and two equivalent O(2) atoms to form distorted MgO4 tetrahedra that share  a cornercorner with one Mo(2)O6 octahedra,  a cornercorner with one Mo(4)O6 octahedra, corners with two equivalent Mo(3)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, and  an edgeedge with one Mo(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-39°. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 5-coordinate geometry to one O(7), two equivalent O(4), and two equivalent O(5) atoms. In the second Mo site, Mo(2) is bonded to one O(4), one O(8), two equivalent O(3), and two equivalent O(6) atoms to form MoO6 octahedra that share corners with two equivalent Mo(4)O6 octahedra,  a cornercorner with one Mg(1)O4 tetrahedra, edges with two equivalent Mo(2)O6 octahedra, and edges with two equivalent Mo(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the third Mo site, Mo(3) is bonded to one O(1), one O(6), two equivalent O(2), and two equivalent O(8) atoms to form MoO6 octahedra that share corners with two equivalent Mo(4)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, edges with two equivalent Mo(2)O6 octahedra, edges with two equivalent Mo(3)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-53°. In the fourth Mo site, Mo(4) is bonded to one O(3), one O(5), two equivalent O(1), and two equivalent O(7) atoms to form MoO6 octahedra that share corners with two equivalent Mo(2)O6 octahedra, corners with two equivalent Mo(3)O6 octahedra,  a cornercorner with one Mg(1)O4 tetrahedra, and edges with two equivalent Mo(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Mo(3) and two equivalent Mo(4) atoms. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to two equivalent Mg(1) and two equivalent Mo(3) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mo(4) and two equivalent Mo(2) atoms. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mo(2), and two equivalent Mo(1) atoms. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mo(4), and two equivalent Mo(1) atoms. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mo(3) and two equivalent Mo(2) atoms. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to one Mo(1) and two equivalent Mo(4) atoms. In the eighth O site, O(8) is bonded in a trigonal non-coplanar geometry to one Mo(2) and two equivalent Mo(3) atoms. is represented by the CIF file [CIF]
data_Mg(MoO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.244
_cell_length_b   8.307
_cell_length_c   8.141
_cell_angle_alpha   80.662
_cell_angle_beta   78.163
_cell_angle_gamma   79.294
_symmetry_Int_Tables_number   1
_cell_volume   209.250
_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  0.038  0.268  0.656  1.0
  Mo  Mo1  1  0.727  0.151  0.392  1.0
  Mo  Mo2  1  0.130  0.528  0.202  1.0
  Mo  Mo3  1  0.817  0.530  0.850  1.0
  Mo  Mo4  1  0.344  0.801  0.481  1.0
  O  O5  1  0.853  0.701  0.621  1.0
  O  O6  1  0.444  0.370  0.745  1.0
  O  O7  1  0.538  0.634  0.317  1.0
  O  O8  1  0.146  0.326  0.388  1.0
  O  O9  1  0.195  0.043  0.557  1.0
  O  O10  1  0.741  0.401  0.106  1.0
  O  O11  1  0.862  0.917  0.337  1.0
  O  O12  1  0.205  0.640  0.964  1.0
[/CIF]
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