data_[Sr8Sn2Se10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Sn  1.9600  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [I4]
_cell_length_a [9.9213]
_cell_length_b [9.9213]
_cell_length_c [6.2905]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [79]
_chemical_formula_structural [Sr4SnSe5]
_chemical_formula_sum '[Sr8 Sn2 Se10]'
_cell_volume [619.1874]
_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  8  0.1012  0.7006  0.4983  1.0
  Sn  Sn1  2  0.0000  0.0000  0.9797  1.0
  Se  Se2  8  0.0991  0.7019  0.9972  1.0
  Se  Se3  2  0.0000  0.0000  0.5283  1.0
]