data_[Sr16Bi4N8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Bi  2.0200  1.6000  1.0350
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.9349]
_cell_length_b [13.5727]
_cell_length_c [13.9978]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Sr4BiN2]
_chemical_formula_sum '[Sr16 Bi4 N8]'
_cell_volume [747.5836]
_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  8  0.0000  0.2388  0.5933  1
  Sr  Sr1  4  0.0000  0.0897  0.2500  1
  Sr  Sr2  4  0.0000  0.5000  0.0000  1
  Bi  Bi3  4  0.0000  0.3914  0.2500  1
  N  N4  8  0.0000  0.1398  0.0656  1
]