The compound described by Na8MgMo2(NO)4 crystallizes in the triclinic P1 space group. There are eight inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second Na site, Na(2) is bonded in a 3-coordinate geometry to one N(4), one O(1), one O(2), one O(3), and one O(4) atom. In the third Na site, Na(3) is bonded in a 4-coordinate geometry to one N(1), one N(2), one N(3), and one N(4) atom. In the fourth Na site, Na(4) is bonded in a 5-coordinate geometry to one N(1), one N(2), one N(3), one N(4), and one O(1) atom. In the fifth Na site, Na(5) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form distorted NaN4 trigonal pyramids that share corners with two equivalent Mo(1)N2O2 tetrahedra and corners with two equivalent Mo(2)N2O2 tetrahedra. In the sixth Na site, Na(6) is bonded in a distorted see-saw-like geometry to one N(1), one N(2), one N(3), and one O(3) atom. In the seventh Na site, Na(7) is bonded in a 4-coordinate geometry to one N(1), one N(3), one O(3), and one O(4) atom. In the eighth Na site, Na(8) is bonded in a 4-coordinate geometry to one N(2), one N(4), one O(1), and one O(2) atom. Mg(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one N(2), one N(4), one O(1), and one O(4) atom to form MoN2O2 tetrahedra that share corners with two equivalent Na(5)N4 trigonal pyramids. In the second Mo site, Mo(2) is bonded to one N(1), one N(3), one O(2), and one O(3) atom to form MoN2O2 tetrahedra that share corners with two equivalent Na(5)N4 trigonal pyramids. There are four inequivalent N sites. In the first N site, N(1) is bonded to one Na(3), one Na(4), one Na(5), one Na(6), one Na(7), and one Mo(2) atom to form distorted NNa5Mo octahedra that share  a cornercorner with one O(4)Na3MgMo trigonal bipyramid and edges with two equivalent N(2)Na5Mo octahedra. In the second N site, N(2) is bonded to one Na(3), one Na(4), one Na(5), one Na(6), one Na(8), and one Mo(1) atom to form distorted NNa5Mo octahedra that share  a cornercorner with one O(4)Na3MgMo trigonal bipyramid and edges with two equivalent N(1)Na5Mo octahedra. In the third N site, N(3) is bonded in a 6-coordinate geometry to one Na(3), one Na(4), one Na(5), one Na(6), one Na(7), and one Mo(2) atom. In the fourth N site, N(4) is bonded in a 6-coordinate geometry to one Na(2), one Na(3), one Na(4), one Na(5), one Na(8), and one Mo(1) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Na(4), one Na(8), one Mg(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(8), one Mg(1), and one Mo(2) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Na(6), one Na(7), one Mg(1), and one Mo(2) atom. In the fourth O site, O(4) is bonded to one Na(1), one Na(2), one Na(7), one Mg(1), and one Mo(1) atom to form distorted ONa3MgMo trigonal bipyramids that share  a cornercorner with one N(1)Na5Mo octahedra and  a cornercorner with one N(2)Na5Mo octahedra. The corner-sharing octahedral tilt angles range from 43-60°. is represented by the CIF card [CIF]
data_Na8MgMo2(NO)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.676
_cell_length_b   6.094
_cell_length_c   9.686
_cell_angle_alpha   84.136
_cell_angle_beta   70.811
_cell_angle_gamma   72.357
_symmetry_Int_Tables_number   1
_cell_volume   301.530
_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  0.258  0.732  0.996  1.0
  Na  Na1  1  0.607  0.108  0.961  1.0
  Na  Na2  1  0.033  0.790  0.425  1.0
  Na  Na3  1  0.928  0.257  0.599  1.0
  Na  Na4  1  0.463  0.805  0.557  1.0
  Na  Na5  1  0.515  0.333  0.414  1.0
  Na  Na6  1  0.607  0.782  0.224  1.0
  Na  Na7  1  0.361  0.305  0.784  1.0
  Mg  Mg8  1  0.812  0.424  0.030  1.0
  Mo  Mo9  1  0.874  0.697  0.757  1.0
  Mo  Mo10  1  0.154  0.305  0.254  1.0
  N  N11  1  0.272  0.070  0.372  1.0
  N  N12  1  0.187  0.567  0.622  1.0
  N  N13  1  0.855  0.518  0.355  1.0
  N  N14  1  0.677  0.955  0.687  1.0
  O  O15  1  0.719  0.430  0.842  1.0
  O  O16  1  0.151  0.222  0.049  1.0
  O  O17  1  0.453  0.452  0.164  1.0
  O  O18  1  0.856  0.737  0.972  1.0
[/CIF]
.
The compound described by Na8MgMo2(NO)4 crystallizes in the triclinic P1 space group. There are eight inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second Na site, Na(2) is bonded in a 3-coordinate geometry to one N(4), one O(1), one O(2), one O(3), and one O(4) atom. In the third Na site, Na(3) is bonded in a 4-coordinate geometry to one N(1), one N(2), one N(3), and one N(4) atom. In the fourth Na site, Na(4) is bonded in a 5-coordinate geometry to one N(1), one N(2), one N(3), one N(4), and one O(1) atom. In the fifth Na site, Na(5) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form distorted NaN4 trigonal pyramids that share corners with two equivalent Mo(1)N2O2 tetrahedra and corners with two equivalent Mo(2)N2O2 tetrahedra. In the sixth Na site, Na(6) is bonded in a distorted see-saw-like geometry to one N(1), one N(2), one N(3), and one O(3) atom. In the seventh Na site, Na(7) is bonded in a 4-coordinate geometry to one N(1), one N(3), one O(3), and one O(4) atom. In the eighth Na site, Na(8) is bonded in a 4-coordinate geometry to one N(2), one N(4), one O(1), and one O(2) atom. Mg(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one N(2), one N(4), one O(1), and one O(4) atom to form MoN2O2 tetrahedra that share corners with two equivalent Na(5)N4 trigonal pyramids. In the second Mo site, Mo(2) is bonded to one N(1), one N(3), one O(2), and one O(3) atom to form MoN2O2 tetrahedra that share corners with two equivalent Na(5)N4 trigonal pyramids. There are four inequivalent N sites. In the first N site, N(1) is bonded to one Na(3), one Na(4), one Na(5), one Na(6), one Na(7), and one Mo(2) atom to form distorted NNa5Mo octahedra that share  a cornercorner with one O(4)Na3MgMo trigonal bipyramid and edges with two equivalent N(2)Na5Mo octahedra. In the second N site, N(2) is bonded to one Na(3), one Na(4), one Na(5), one Na(6), one Na(8), and one Mo(1) atom to form distorted NNa5Mo octahedra that share  a cornercorner with one O(4)Na3MgMo trigonal bipyramid and edges with two equivalent N(1)Na5Mo octahedra. In the third N site, N(3) is bonded in a 6-coordinate geometry to one Na(3), one Na(4), one Na(5), one Na(6), one Na(7), and one Mo(2) atom. In the fourth N site, N(4) is bonded in a 6-coordinate geometry to one Na(2), one Na(3), one Na(4), one Na(5), one Na(8), and one Mo(1) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Na(4), one Na(8), one Mg(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(8), one Mg(1), and one Mo(2) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Na(6), one Na(7), one Mg(1), and one Mo(2) atom. In the fourth O site, O(4) is bonded to one Na(1), one Na(2), one Na(7), one Mg(1), and one Mo(1) atom to form distorted ONa3MgMo trigonal bipyramids that share  a cornercorner with one N(1)Na5Mo octahedra and  a cornercorner with one N(2)Na5Mo octahedra. The corner-sharing octahedral tilt angles range from 43-60°. is represented by the CIF card [CIF]
data_Na8MgMo2(NO)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.676
_cell_length_b   6.094
_cell_length_c   9.686
_cell_angle_alpha   84.136
_cell_angle_beta   70.811
_cell_angle_gamma   72.357
_symmetry_Int_Tables_number   1
_cell_volume   301.530
_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  0.258  0.732  0.996  1.0
  Na  Na1  1  0.607  0.108  0.961  1.0
  Na  Na2  1  0.033  0.790  0.425  1.0
  Na  Na3  1  0.928  0.257  0.599  1.0
  Na  Na4  1  0.463  0.805  0.557  1.0
  Na  Na5  1  0.515  0.333  0.414  1.0
  Na  Na6  1  0.607  0.782  0.224  1.0
  Na  Na7  1  0.361  0.305  0.784  1.0
  Mg  Mg8  1  0.812  0.424  0.030  1.0
  Mo  Mo9  1  0.874  0.697  0.757  1.0
  Mo  Mo10  1  0.154  0.305  0.254  1.0
  N  N11  1  0.272  0.070  0.372  1.0
  N  N12  1  0.187  0.567  0.622  1.0
  N  N13  1  0.855  0.518  0.355  1.0
  N  N14  1  0.677  0.955  0.687  1.0
  O  O15  1  0.719  0.430  0.842  1.0
  O  O16  1  0.151  0.222  0.049  1.0
  O  O17  1  0.453  0.452  0.164  1.0
  O  O18  1  0.856  0.737  0.972  1.0
[/CIF]
.