data_[K6Tb4Tm2Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Tb  1.1000  1.7500  0.9815
  Tm  1.2500  1.7500  1.0950
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.2884]
_cell_length_b [12.6248]
_cell_length_c [8.0578]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.5556]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K3Tb2TmSe6]
_chemical_formula_sum '[K6 Tb4 Tm2 Se12]'
_cell_volume [706.9058]
_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
[
  K  K0  4  0.0000  0.1675  0.5000  1.0
  K  K1  2  0.0000  0.5000  0.5000  1.0
  Tb  Tb2  4  0.0000  0.3334  0.0000  1.0
  Tm  Tm3  2  0.0000  0.0000  0.0000  1.0
  Se  Se4  8  0.2329  0.1646  0.2047  1.0
  Se  Se5  4  0.2391  0.5000  0.2049  1.0
]