The material structure described by Na4Mg(Mo2O5)2 crystallizes in the triclinic P1 space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a distorted trigonal planar geometry to one O(2), one O(7), and one O(9) atom. In the second Na site, Na(2) is bonded to one O(1), one O(10), one O(2), one O(3), one O(6), and one O(8) atom to form distorted NaO6 octahedra that share  a cornercorner with one Mo(1)O6 octahedra, corners with three equivalent Mg(1)O6 octahedra, corners with four equivalent Na(4)O6 octahedra,  a cornercorner with one Mo(4)O5 square pyramid, corners with two equivalent Mo(3)O4 tetrahedra,  an edgeedge with one Na(3)O6 octahedra, edges with two equivalent Mo(2)O6 octahedra,  an edgeedge with one Mo(4)O5 square pyramid, and  a faceface with one Mo(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-62°. In the third Na site, Na(3) is bonded to one O(10), one O(4), one O(5), one O(6), one O(7), and one O(9) atom to form distorted NaO6 octahedra that share  a cornercorner with one Mg(1)O6 octahedra, corners with three equivalent Na(4)O6 octahedra, corners with three equivalent Mo(1)O6 octahedra,  a cornercorner with one Mo(4)O5 square pyramid,  a cornercorner with one Mo(3)O4 tetrahedra,  an edgeedge with one Na(2)O6 octahedra,  an edgeedge with one Mo(2)O6 octahedra,  an edgeedge with one Mo(3)O4 tetrahedra,  a faceface with one Mg(1)O6 octahedra, and  a faceface with one Mo(4)O5 square pyramid. The corner-sharing octahedral tilt angles range from 23-57°. In the fourth Na site, Na(4) is bonded to one O(1), one O(3), one O(4), one O(6), one O(8), and one O(9) atom to form distorted NaO6 octahedra that share  a cornercorner with one Mo(2)O6 octahedra, corners with three equivalent Na(3)O6 octahedra, corners with four equivalent Na(2)O6 octahedra,  a cornercorner with one Mo(4)O5 square pyramid, corners with two equivalent Mo(3)O4 tetrahedra,  an edgeedge with one Mg(1)O6 octahedra, edges with two equivalent Mo(1)O6 octahedra,  an edgeedge with one Mo(4)O5 square pyramid, and  a faceface with one Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-67°. Mg(1) is bonded to one O(1), one O(10), one O(2), one O(4), one O(5), and one O(7) atom to form distorted MgO6 octahedra that share  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one Mo(2)O6 octahedra, corners with three equivalent Na(2)O6 octahedra, corners with two equivalent Mo(3)O4 tetrahedra,  an edgeedge with one Na(4)O6 octahedra, edges with two equivalent Mo(1)O6 octahedra,  an edgeedge with one Mo(4)O5 square pyramid,  a faceface with one Na(3)O6 octahedra, and  a faceface with one Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-53°. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form MoO6 octahedra that share  a cornercorner with one Na(2)O6 octahedra, corners with three equivalent Na(3)O6 octahedra, corners with four equivalent Mo(2)O6 octahedra,  a cornercorner with one Mo(3)O4 tetrahedra, edges with two equivalent Na(4)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra,  an edgeedge with one Mo(4)O5 square pyramid, and  a faceface with one Na(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-54°. In the second Mo site, Mo(2) 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 MoO6 octahedra that share  a cornercorner with one Na(4)O6 octahedra,  a cornercorner with one Mg(1)O6 octahedra, corners with four equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(4)O5 square pyramids,  a cornercorner with one Mo(3)O4 tetrahedra,  an edgeedge with one Na(3)O6 octahedra, edges with two equivalent Na(2)O6 octahedra,  a faceface with one Na(4)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-67°. In the third Mo site, Mo(3) is bonded to one O(10), one O(5), one O(8), and one O(9) atom to form MoO4 tetrahedra that share  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(2)O6 octahedra, corners with two equivalent Na(2)O6 octahedra, corners with two equivalent Na(4)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Mo(4)O5 square pyramids, and  an edgeedge with one Na(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-86°. In the fourth Mo site, Mo(4) is bonded to one O(10), one O(3), one O(6), one O(7), and one O(9) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Na(2)O6 octahedra,  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one Na(4)O6 octahedra, corners with two equivalent Mo(2)O6 octahedra, corners with two equivalent Mo(3)O4 tetrahedra,  an edgeedge with one Na(2)O6 octahedra,  an edgeedge with one Na(4)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Mo(1)O6 octahedra, and  a faceface with one Na(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-72°. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Na(2), one Na(4), one Mg(1), one Mo(1), and one Mo(2) atom to form distorted ONa2MgMo2 trigonal bipyramids that share  a cornercorner with one O(6)Na3Mo2 trigonal bipyramid,  a cornercorner with one O(9)Na3Mo2 trigonal bipyramid,  an edgeedge with one O(7)Na2MgMo2 square pyramid,  an edgeedge with one O(6)Na3Mo2 trigonal bipyramid, and edges with two equivalent O(2)Na2MgMo2 trigonal bipyramids. In the second O site, O(2) is bonded to one Na(1), one Na(2), one Mg(1), one Mo(1), and one Mo(2) atom to form distorted ONa2MgMo2 trigonal bipyramids that share  a cornercorner with one O(7)Na2MgMo2 square pyramid,  a cornercorner with one O(9)Na3Mo2 trigonal bipyramid,  an edgeedge with one O(7)Na2MgMo2 square pyramid,  an edgeedge with one O(6)Na3Mo2 trigonal bipyramid, and edges with two equivalent O(1)Na2MgMo2 trigonal bipyramids. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Na(2), one Na(4), one Mo(1), one Mo(2), and one Mo(4) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Na(3), one Na(4), one Mg(1), one Mo(1), and one Mo(2) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Na(3), one Mg(1), one Mo(1), and one Mo(3) atom. In the sixth O site, O(6) is bonded to one Na(2), one Na(3), one Na(4), one Mo(1), and one Mo(4) atom to form distorted ONa3Mo2 trigonal bipyramids that share  a cornercorner with one O(1)Na2MgMo2 trigonal bipyramid,  a cornercorner with one O(9)Na3Mo2 trigonal bipyramid,  an edgeedge with one O(7)Na2MgMo2 square pyramid,  an edgeedge with one O(1)Na2MgMo2 trigonal bipyramid,  an edgeedge with one O(2)Na2MgMo2 trigonal bipyramid, and  an edgeedge with one O(9)Na3Mo2 trigonal bipyramid. In the seventh O site, O(7) is bonded to one Na(1), one Na(3), one Mg(1), one Mo(2), and one Mo(4) atom to form distorted ONa2MgMo2 square pyramids that share  a cornercorner with one O(2)Na2MgMo2 trigonal bipyramid,  a cornercorner with one O(9)Na3Mo2 trigonal bipyramid,  an edgeedge with one O(1)Na2MgMo2 trigonal bipyramid,  an edgeedge with one O(2)Na2MgMo2 trigonal bipyramid,  an edgeedge with one O(6)Na3Mo2 trigonal bipyramid, and  an edgeedge with one O(9)Na3Mo2 trigonal bipyramid. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Na(2), one Na(4), one Mo(2), and one Mo(3) atom. In the ninth O site, O(9) is bonded to one Na(1), one Na(3), one Na(4), one Mo(3), and one Mo(4) atom to form distorted ONa3Mo2 trigonal bipyramids that share  a cornercorner with one O(7)Na2MgMo2 square pyramid,  a cornercorner with one O(1)Na2MgMo2 trigonal bipyramid,  a cornercorner with one O(2)Na2MgMo2 trigonal bipyramid,  a cornercorner with one O(6)Na3Mo2 trigonal bipyramid,  an edgeedge with one O(7)Na2MgMo2 square pyramid, and  an edgeedge with one O(6)Na3Mo2 trigonal bipyramid. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Na(2), one Na(3), one Mg(1), one Mo(3), and one Mo(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4Mg(Mo2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.133
_cell_length_b   5.519
_cell_length_c   7.968
_cell_angle_alpha   110.320
_cell_angle_beta   108.203
_cell_angle_gamma   90.868
_symmetry_Int_Tables_number   1
_cell_volume   237.934
_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
  Na  Na0  1  0.636  0.123  0.237  1.0
  Na  Na1  1  0.361  0.869  0.780  1.0
  Na  Na2  1  0.969  0.660  0.376  1.0
  Na  Na3  1  0.892  0.398  0.778  1.0
  Mg  Mg4  1  0.249  0.583  0.184  1.0
  Mo  Mo5  1  0.048  0.975  0.985  1.0
  Mo  Mo6  1  0.561  0.483  0.986  1.0
  Mo  Mo7  1  0.186  0.221  0.505  1.0
  Mo  Mo8  1  0.674  0.836  0.565  1.0
  O  O9  1  0.237  0.251  0.943  1.0
  O  O10  1  0.348  0.799  0.050  1.0
  O  O11  1  0.735  0.102  0.879  1.0
  O  O12  1  0.908  0.704  0.070  1.0
  O  O13  1  0.121  0.283  0.268  1.0
  O  O14  1  0.980  0.722  0.697  1.0
  O  O15  1  0.595  0.546  0.284  1.0
  O  O16  1  0.467  0.457  0.692  1.0
  O  O17  1  0.883  0.090  0.506  1.0
  O  O18  1  0.319  0.883  0.456  1.0
[/CIF]
.
The material structure described by Na4Mg(Mo2O5)2 crystallizes in the triclinic P1 space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a distorted trigonal planar geometry to one O(2), one O(7), and one O(9) atom. In the second Na site, Na(2) is bonded to one O(1), one O(10), one O(2), one O(3), one O(6), and one O(8) atom to form distorted NaO6 octahedra that share  a cornercorner with one Mo(1)O6 octahedra, corners with three equivalent Mg(1)O6 octahedra, corners with four equivalent Na(4)O6 octahedra,  a cornercorner with one Mo(4)O5 square pyramid, corners with two equivalent Mo(3)O4 tetrahedra,  an edgeedge with one Na(3)O6 octahedra, edges with two equivalent Mo(2)O6 octahedra,  an edgeedge with one Mo(4)O5 square pyramid, and  a faceface with one Mo(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-62°. In the third Na site, Na(3) is bonded to one O(10), one O(4), one O(5), one O(6), one O(7), and one O(9) atom to form distorted NaO6 octahedra that share  a cornercorner with one Mg(1)O6 octahedra, corners with three equivalent Na(4)O6 octahedra, corners with three equivalent Mo(1)O6 octahedra,  a cornercorner with one Mo(4)O5 square pyramid,  a cornercorner with one Mo(3)O4 tetrahedra,  an edgeedge with one Na(2)O6 octahedra,  an edgeedge with one Mo(2)O6 octahedra,  an edgeedge with one Mo(3)O4 tetrahedra,  a faceface with one Mg(1)O6 octahedra, and  a faceface with one Mo(4)O5 square pyramid. The corner-sharing octahedral tilt angles range from 23-57°. In the fourth Na site, Na(4) is bonded to one O(1), one O(3), one O(4), one O(6), one O(8), and one O(9) atom to form distorted NaO6 octahedra that share  a cornercorner with one Mo(2)O6 octahedra, corners with three equivalent Na(3)O6 octahedra, corners with four equivalent Na(2)O6 octahedra,  a cornercorner with one Mo(4)O5 square pyramid, corners with two equivalent Mo(3)O4 tetrahedra,  an edgeedge with one Mg(1)O6 octahedra, edges with two equivalent Mo(1)O6 octahedra,  an edgeedge with one Mo(4)O5 square pyramid, and  a faceface with one Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-67°. Mg(1) is bonded to one O(1), one O(10), one O(2), one O(4), one O(5), and one O(7) atom to form distorted MgO6 octahedra that share  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one Mo(2)O6 octahedra, corners with three equivalent Na(2)O6 octahedra, corners with two equivalent Mo(3)O4 tetrahedra,  an edgeedge with one Na(4)O6 octahedra, edges with two equivalent Mo(1)O6 octahedra,  an edgeedge with one Mo(4)O5 square pyramid,  a faceface with one Na(3)O6 octahedra, and  a faceface with one Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-53°. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form MoO6 octahedra that share  a cornercorner with one Na(2)O6 octahedra, corners with three equivalent Na(3)O6 octahedra, corners with four equivalent Mo(2)O6 octahedra,  a cornercorner with one Mo(3)O4 tetrahedra, edges with two equivalent Na(4)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra,  an edgeedge with one Mo(4)O5 square pyramid, and  a faceface with one Na(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-54°. In the second Mo site, Mo(2) 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 MoO6 octahedra that share  a cornercorner with one Na(4)O6 octahedra,  a cornercorner with one Mg(1)O6 octahedra, corners with four equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(4)O5 square pyramids,  a cornercorner with one Mo(3)O4 tetrahedra,  an edgeedge with one Na(3)O6 octahedra, edges with two equivalent Na(2)O6 octahedra,  a faceface with one Na(4)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-67°. In the third Mo site, Mo(3) is bonded to one O(10), one O(5), one O(8), and one O(9) atom to form MoO4 tetrahedra that share  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(2)O6 octahedra, corners with two equivalent Na(2)O6 octahedra, corners with two equivalent Na(4)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Mo(4)O5 square pyramids, and  an edgeedge with one Na(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-86°. In the fourth Mo site, Mo(4) is bonded to one O(10), one O(3), one O(6), one O(7), and one O(9) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Na(2)O6 octahedra,  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one Na(4)O6 octahedra, corners with two equivalent Mo(2)O6 octahedra, corners with two equivalent Mo(3)O4 tetrahedra,  an edgeedge with one Na(2)O6 octahedra,  an edgeedge with one Na(4)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Mo(1)O6 octahedra, and  a faceface with one Na(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-72°. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Na(2), one Na(4), one Mg(1), one Mo(1), and one Mo(2) atom to form distorted ONa2MgMo2 trigonal bipyramids that share  a cornercorner with one O(6)Na3Mo2 trigonal bipyramid,  a cornercorner with one O(9)Na3Mo2 trigonal bipyramid,  an edgeedge with one O(7)Na2MgMo2 square pyramid,  an edgeedge with one O(6)Na3Mo2 trigonal bipyramid, and edges with two equivalent O(2)Na2MgMo2 trigonal bipyramids. In the second O site, O(2) is bonded to one Na(1), one Na(2), one Mg(1), one Mo(1), and one Mo(2) atom to form distorted ONa2MgMo2 trigonal bipyramids that share  a cornercorner with one O(7)Na2MgMo2 square pyramid,  a cornercorner with one O(9)Na3Mo2 trigonal bipyramid,  an edgeedge with one O(7)Na2MgMo2 square pyramid,  an edgeedge with one O(6)Na3Mo2 trigonal bipyramid, and edges with two equivalent O(1)Na2MgMo2 trigonal bipyramids. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Na(2), one Na(4), one Mo(1), one Mo(2), and one Mo(4) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Na(3), one Na(4), one Mg(1), one Mo(1), and one Mo(2) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Na(3), one Mg(1), one Mo(1), and one Mo(3) atom. In the sixth O site, O(6) is bonded to one Na(2), one Na(3), one Na(4), one Mo(1), and one Mo(4) atom to form distorted ONa3Mo2 trigonal bipyramids that share  a cornercorner with one O(1)Na2MgMo2 trigonal bipyramid,  a cornercorner with one O(9)Na3Mo2 trigonal bipyramid,  an edgeedge with one O(7)Na2MgMo2 square pyramid,  an edgeedge with one O(1)Na2MgMo2 trigonal bipyramid,  an edgeedge with one O(2)Na2MgMo2 trigonal bipyramid, and  an edgeedge with one O(9)Na3Mo2 trigonal bipyramid. In the seventh O site, O(7) is bonded to one Na(1), one Na(3), one Mg(1), one Mo(2), and one Mo(4) atom to form distorted ONa2MgMo2 square pyramids that share  a cornercorner with one O(2)Na2MgMo2 trigonal bipyramid,  a cornercorner with one O(9)Na3Mo2 trigonal bipyramid,  an edgeedge with one O(1)Na2MgMo2 trigonal bipyramid,  an edgeedge with one O(2)Na2MgMo2 trigonal bipyramid,  an edgeedge with one O(6)Na3Mo2 trigonal bipyramid, and  an edgeedge with one O(9)Na3Mo2 trigonal bipyramid. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Na(2), one Na(4), one Mo(2), and one Mo(3) atom. In the ninth O site, O(9) is bonded to one Na(1), one Na(3), one Na(4), one Mo(3), and one Mo(4) atom to form distorted ONa3Mo2 trigonal bipyramids that share  a cornercorner with one O(7)Na2MgMo2 square pyramid,  a cornercorner with one O(1)Na2MgMo2 trigonal bipyramid,  a cornercorner with one O(2)Na2MgMo2 trigonal bipyramid,  a cornercorner with one O(6)Na3Mo2 trigonal bipyramid,  an edgeedge with one O(7)Na2MgMo2 square pyramid, and  an edgeedge with one O(6)Na3Mo2 trigonal bipyramid. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Na(2), one Na(3), one Mg(1), one Mo(3), and one Mo(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4Mg(Mo2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.133
_cell_length_b   5.519
_cell_length_c   7.968
_cell_angle_alpha   110.320
_cell_angle_beta   108.203
_cell_angle_gamma   90.868
_symmetry_Int_Tables_number   1
_cell_volume   237.934
_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
  Na  Na0  1  0.636  0.123  0.237  1.0
  Na  Na1  1  0.361  0.869  0.780  1.0
  Na  Na2  1  0.969  0.660  0.376  1.0
  Na  Na3  1  0.892  0.398  0.778  1.0
  Mg  Mg4  1  0.249  0.583  0.184  1.0
  Mo  Mo5  1  0.048  0.975  0.985  1.0
  Mo  Mo6  1  0.561  0.483  0.986  1.0
  Mo  Mo7  1  0.186  0.221  0.505  1.0
  Mo  Mo8  1  0.674  0.836  0.565  1.0
  O  O9  1  0.237  0.251  0.943  1.0
  O  O10  1  0.348  0.799  0.050  1.0
  O  O11  1  0.735  0.102  0.879  1.0
  O  O12  1  0.908  0.704  0.070  1.0
  O  O13  1  0.121  0.283  0.268  1.0
  O  O14  1  0.980  0.722  0.697  1.0
  O  O15  1  0.595  0.546  0.284  1.0
  O  O16  1  0.467  0.457  0.692  1.0
  O  O17  1  0.883  0.090  0.506  1.0
  O  O18  1  0.319  0.883  0.456  1.0
[/CIF]
.