data_[Na2Ta4Mo2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ta  1.5000  1.4500  0.8200
  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 [6.7546]
_cell_length_b [6.9417]
_cell_length_c [6.2923]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.8113]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaTa2MoO8]
_chemical_formula_sum '[Na2 Ta4 Mo2 O16]'
_cell_volume [295.0064]
_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  2  0.0000  0.0000  0.5000  1.0
  Ta  Ta1  4  0.0080  0.5000  0.2562  1.0
  Mo  Mo2  2  0.0000  0.0000  0.0000  1.0
  O  O3  4  0.0000  0.3046  0.0000  1.0
  O  O4  4  0.0000  0.3214  0.5000  1.0
  O  O5  4  0.2071  0.0000  0.2088  1.0
  O  O6  4  0.2123  0.0000  0.7780  1.0
]