data_[Ca4Sm1Pb5]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Sm  1.1700  1.8500  1.2290
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [3.6050]
_cell_length_b [3.6050]
_cell_length_c [23.3044]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [Ca4SmPb5]
_chemical_formula_sum '[Ca4 Sm1 Pb5]'
_cell_volume [302.8562]
_cell_formula_units_Z [1]
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
[
  Ca  Ca0  2  0.0000  0.0000  0.1994  1.0
  Ca  Ca1  2  0.0000  0.0000  0.3999  1.0
  Sm  Sm2  1  0.0000  0.0000  0.0000  1.0
  Pb  Pb3  2  0.5000  0.5000  0.0993  1.0
  Pb  Pb4  2  0.5000  0.5000  0.2995  1.0
  Pb  Pb5  1  0.5000  0.5000  0.5000  1.0
]