data_[Pm2Sm2Bi4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sm  1.1700  1.8500  1.2290
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [5.4795]
_cell_length_b [5.4795]
_cell_length_c [11.4923]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [PmSm(BiO4)2]
_chemical_formula_sum '[Pm2 Sm2 Bi4 O16]'
_cell_volume [345.0595]
_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
[
  Pm  Pm0  2  0.0000  0.0000  0.0000  1
  Sm  Sm1  2  0.0000  0.5000  0.2500  1
  Bi  Bi2  2  0.0000  0.0000  0.5000  1
  Bi  Bi3  2  0.0000  0.5000  0.7500  1
  O  O4  8  0.1969  0.2528  0.4041  1
  O  O5  8  0.1986  0.7524  0.8453  1
]