data_[Na6Tb4Zr2Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tb  1.1000  1.7500  0.9815
  Zr  1.3300  1.5500  0.8600
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.0214]
_cell_length_b [12.1628]
_cell_length_c [7.4445]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.3953]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3Tb2ZrSe6]
_chemical_formula_sum '[Na6 Tb4 Zr2 Se12]'
_cell_volume [603.2700]
_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  0.0000  0.1693  0.5000  1.0
  Na  Na1  2  0.0000  0.5000  0.5000  1.0
  Tb  Tb2  4  0.0000  0.3336  0.0000  1.0
  Zr  Zr3  2  0.0000  0.0000  0.0000  1.0
  Se  Se4  8  0.2371  0.8396  0.2299  1.0
  Se  Se5  4  0.2436  0.0000  0.7705  1.0
]