The compound described by Mg(MoO3)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(7), one O(8), and one O(9) atom to form distorted MgO5 trigonal bipyramids that share  a cornercorner with one Mo(3)O6 octahedra,  a cornercorner with one Mo(4)O6 octahedra,  a cornercorner with one Mo(1)O5 trigonal bipyramid,  a cornercorner with one Mo(2)O5 trigonal bipyramid,  an edgeedge with one Mo(3)O6 octahedra, and  an edgeedge with one Mo(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-67°. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(10), one O(11), one O(12), one O(4), and one O(9) atom to form distorted MoO5 trigonal bipyramids that share  a cornercorner with one Mo(4)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and corners with four equivalent Mo(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 33°. In the second Mo site, Mo(2) is bonded to one O(10), one O(11), one O(12), one O(3), and one O(9) atom to form distorted MoO5 trigonal bipyramids that share  a cornercorner with one Mo(3)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and corners with four equivalent Mo(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 41°. In the third Mo site, Mo(3) is bonded to one O(1), one O(2), one O(3), one O(5), one O(6), and one O(7) atom to form distorted MoO6 octahedra that share corners with four equivalent Mo(4)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid,  a cornercorner with one Mo(2)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 24-53°. In the fourth Mo site, Mo(4) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(8) atom to form distorted MoO6 octahedra that share corners with four equivalent Mo(3)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid,  a cornercorner with one Mo(1)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 24-53°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mo(3), and one Mo(4) atom. In the second O site, O(2) is bonded in a T-shaped geometry to one Mg(1), one Mo(3), and one Mo(4) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Mo(2) and one Mo(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(4) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Mo(3) and one Mo(4) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mo(3) and one Mo(4) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Mg(1) and one Mo(3) atom. In the eighth O site, O(8) is bonded in a water-like geometry to one Mg(1) and one Mo(4) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Mg(1), one Mo(1), and one Mo(2) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Mo(1) and one Mo(2) atom. In the eleventh O site, O(11) is bonded in a linear geometry to one Mo(1) and one Mo(2) atom. In the twelfth O site, O(12) is bonded in a linear geometry to one Mo(1) and one Mo(2) atom. is represented by the CIF card [CIF]
data_Mg(MoO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.093
_cell_length_b   5.433
_cell_length_c   8.794
_cell_angle_alpha   77.245
_cell_angle_beta   84.446
_cell_angle_gamma   90.678
_symmetry_Int_Tables_number   1
_cell_volume   236.055
_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  0.119  0.698  0.286  1.0
  Mo  Mo1  1  0.956  0.025  0.944  1.0
  Mo  Mo2  1  0.420  0.521  0.941  1.0
  Mo  Mo3  1  0.569  0.706  0.490  1.0
  Mo  Mo4  1  0.020  0.190  0.495  1.0
  O  O5  1  0.234  0.913  0.441  1.0
  O  O6  1  0.331  0.450  0.447  1.0
  O  O7  1  0.345  0.598  0.750  1.0
  O  O8  1  0.092  0.091  0.747  1.0
  O  O9  1  0.797  0.471  0.576  1.0
  O  O10  1  0.699  0.962  0.577  1.0
  O  O11  1  0.737  0.806  0.298  1.0
  O  O12  1  0.930  0.331  0.310  1.0
  O  O13  1  0.193  0.740  0.054  1.0
  O  O14  1  0.180  0.221  0.036  1.0
  O  O15  1  0.717  0.753  0.958  1.0
  O  O16  1  0.697  0.259  0.942  1.0
[/CIF]
.
The compound described by Mg(MoO3)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(7), one O(8), and one O(9) atom to form distorted MgO5 trigonal bipyramids that share  a cornercorner with one Mo(3)O6 octahedra,  a cornercorner with one Mo(4)O6 octahedra,  a cornercorner with one Mo(1)O5 trigonal bipyramid,  a cornercorner with one Mo(2)O5 trigonal bipyramid,  an edgeedge with one Mo(3)O6 octahedra, and  an edgeedge with one Mo(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-67°. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(10), one O(11), one O(12), one O(4), and one O(9) atom to form distorted MoO5 trigonal bipyramids that share  a cornercorner with one Mo(4)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and corners with four equivalent Mo(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 33°. In the second Mo site, Mo(2) is bonded to one O(10), one O(11), one O(12), one O(3), and one O(9) atom to form distorted MoO5 trigonal bipyramids that share  a cornercorner with one Mo(3)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and corners with four equivalent Mo(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 41°. In the third Mo site, Mo(3) is bonded to one O(1), one O(2), one O(3), one O(5), one O(6), and one O(7) atom to form distorted MoO6 octahedra that share corners with four equivalent Mo(4)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid,  a cornercorner with one Mo(2)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 24-53°. In the fourth Mo site, Mo(4) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(8) atom to form distorted MoO6 octahedra that share corners with four equivalent Mo(3)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid,  a cornercorner with one Mo(1)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 24-53°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mo(3), and one Mo(4) atom. In the second O site, O(2) is bonded in a T-shaped geometry to one Mg(1), one Mo(3), and one Mo(4) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Mo(2) and one Mo(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(4) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Mo(3) and one Mo(4) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mo(3) and one Mo(4) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Mg(1) and one Mo(3) atom. In the eighth O site, O(8) is bonded in a water-like geometry to one Mg(1) and one Mo(4) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Mg(1), one Mo(1), and one Mo(2) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Mo(1) and one Mo(2) atom. In the eleventh O site, O(11) is bonded in a linear geometry to one Mo(1) and one Mo(2) atom. In the twelfth O site, O(12) is bonded in a linear geometry to one Mo(1) and one Mo(2) atom. is represented by the CIF card [CIF]
data_Mg(MoO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.093
_cell_length_b   5.433
_cell_length_c   8.794
_cell_angle_alpha   77.245
_cell_angle_beta   84.446
_cell_angle_gamma   90.678
_symmetry_Int_Tables_number   1
_cell_volume   236.055
_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  0.119  0.698  0.286  1.0
  Mo  Mo1  1  0.956  0.025  0.944  1.0
  Mo  Mo2  1  0.420  0.521  0.941  1.0
  Mo  Mo3  1  0.569  0.706  0.490  1.0
  Mo  Mo4  1  0.020  0.190  0.495  1.0
  O  O5  1  0.234  0.913  0.441  1.0
  O  O6  1  0.331  0.450  0.447  1.0
  O  O7  1  0.345  0.598  0.750  1.0
  O  O8  1  0.092  0.091  0.747  1.0
  O  O9  1  0.797  0.471  0.576  1.0
  O  O10  1  0.699  0.962  0.577  1.0
  O  O11  1  0.737  0.806  0.298  1.0
  O  O12  1  0.930  0.331  0.310  1.0
  O  O13  1  0.193  0.740  0.054  1.0
  O  O14  1  0.180  0.221  0.036  1.0
  O  O15  1  0.717  0.753  0.958  1.0
  O  O16  1  0.697  0.259  0.942  1.0
[/CIF]
.