data_[Na6Mg2Mo6O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Mg  1.3100  1.5000  0.8600
  Mo  2.1600  1.4500  0.7750
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.9485]
_cell_length_b [6.3897]
_cell_length_c [6.6111]
_cell_angle_alpha [90.0000]
_cell_angle_beta [123.8792]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3MgMo3O8]
_chemical_formula_sum '[Na6 Mg2 Mo6 O16]'
_cell_volume [383.9694]
_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
[
  Na  Na0  4  0.2500  0.2500  0.0000  1.0
  Na  Na1  2  0.0000  0.0000  0.0000  1.0
  Mg  Mg2  2  0.0000  0.0000  0.5000  1.0
  Mo  Mo3  4  0.2500  0.2500  0.5000  1.0
  Mo  Mo4  2  0.0000  0.5000  0.5000  1.0
  O  O5  8  0.0249  0.2432  0.3104  1.0
  O  O6  4  0.2389  0.0000  0.6938  1.0
  O  O7  4  0.2403  0.5000  0.7131  1.0
]