data_[Pm12Nd4Ru2]
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
  Ru  2.2000  1.3000  0.6610
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [9.3860]
_cell_length_b [17.7068]
_cell_length_c [3.6071]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Pm6Nd2Ru]
_chemical_formula_sum '[Pm12 Nd4 Ru2]'
_cell_volume [599.4752]
_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  8  0.1652  0.8338  0.0000  1
  Pm  Pm1  4  0.2316  0.0000  0.5000  1
  Nd  Nd2  4  0.0000  0.3305  0.5000  1
  Ru  Ru3  2  0.0000  0.0000  0.0000  1
]