data_[Pm16Er4Cd2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Er  1.2400  1.7500  1.0300
  Cd  1.6900  1.5500  1.0900
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.2109]
_cell_length_b [5.0614]
_cell_length_c [8.0141]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.5119]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm8Er2Cd]
_chemical_formula_sum '[Pm16 Er4 Cd2]'
_cell_volume [711.7696]
_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  4  0.0457  0.0000  0.7240  1
  Pm  Pm1  4  0.0908  0.5000  0.4455  1
  Pm  Pm2  4  0.1363  0.0000  0.1806  1
  Pm  Pm3  4  0.1808  0.5000  0.9103  1
  Er  Er4  4  0.2248  0.0000  0.6340  1
  Cd  Cd5  2  0.0000  0.5000  0.0000  1
]