data_[Sr6Tb4Y2Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Tb  1.1000  1.7500  0.9815
  Y  1.2200  1.8000  1.0400
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.2825]
_cell_length_b [12.6282]
_cell_length_c [7.4908]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.8743]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sr3Tb2YSe6]
_chemical_formula_sum '[Sr6 Tb4 Y2 Se12]'
_cell_volume [651.8462]
_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
[
  Sr  Sr0  4  0.0000  0.1668  0.5000  1.0
  Sr  Sr1  2  0.0000  0.5000  0.5000  1.0
  Tb  Tb2  4  0.0000  0.3334  0.0000  1.0
  Y  Y3  2  0.0000  0.0000  0.0000  1.0
  Se  Se4  8  0.2439  0.1665  0.2316  1.0
  Se  Se5  4  0.2446  0.5000  0.2318  1.0
]