data_[Sr4Er4Bi4P2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Er  1.2400  1.7500  1.0300
  Bi  2.0200  1.6000  1.0350
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [5.2413]
_cell_length_b [5.2413]
_cell_length_c [17.2371]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Sr2Er2Bi2P]
_chemical_formula_sum '[Sr4 Er4 Bi4 P2]'
_cell_volume [473.5303]
_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  0.0000  0.1723  1.0
  Er  Er1  4  0.0000  0.5000  0.0000  1.0
  Bi  Bi2  4  0.0000  0.0000  0.3733  1.0
  P  P3  2  0.0000  0.0000  0.0000  1.0
]