data_[Sr4Sn4Se4O4]
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
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_12_12_1]
_cell_length_a [6.9562]
_cell_length_b [7.3115]
_cell_length_c [7.9939]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [19]
_chemical_formula_structural [SrSnSeO]
_chemical_formula_sum '[Sr4 Sn4 Se4 O4]'
_cell_volume [406.5672]
_cell_formula_units_Z [4]
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  0.0832  0.8073  0.7032  1
  Sn  Sn1  4  0.0764  0.7365  0.2321  1
  Se  Se2  4  0.2397  0.4623  0.4887  1
  O  O3  4  0.1957  0.1045  0.7772  1
]