data_[Na6Tm4Hf2Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tm  1.2500  1.7500  1.0950
  Hf  1.3000  1.5500  0.8500
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.9196]
_cell_length_b [11.9866]
_cell_length_c [7.4220]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.1585]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3Tm2HfSe6]
_chemical_formula_sum '[Na6 Tm4 Hf2 Se12]'
_cell_volume [584.9434]
_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  0.1695  0.5000  1.0
  Na  Na1  2  0.0000  0.5000  0.5000  1.0
  Tm  Tm2  4  0.0000  0.3337  0.0000  1.0
  Hf  Hf3  2  0.0000  0.0000  0.0000  1.0
  Se  Se4  8  0.2361  0.1607  0.2261  1.0
  Se  Se5  4  0.2455  0.0000  0.7740  1.0
]