data_[Pm6Nd4Sm16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Nd  1.1400  1.8500  1.2765
  Sm  1.1700  1.8500  1.2290
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.9782]
_cell_length_b [9.2072]
_cell_length_c [6.8950]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.2209]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm3(NdSm4)2]
_chemical_formula_sum '[Pm6 Nd4 Sm16]'
_cell_volume [938.5796]
_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  0.0000  0.1697  0.0000  1
  Pm  Pm1  2  0.0000  0.0000  0.5000  1
  Nd  Nd2  4  0.2012  0.0000  0.2842  1
  Sm  Sm3  8  0.1142  0.3202  0.4325  1
  Sm  Sm4  4  0.0845  0.5000  0.8733  1
  Sm  Sm5  4  0.2082  0.0000  0.7958  1
]