data_[Pm6Ni2Ru2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ni  1.9100  1.3500  0.7400
  Ru  2.2000  1.3000  0.6610
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [4.0378]
_cell_length_b [9.5440]
_cell_length_c [6.4342]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [Pm3NiRu]
_chemical_formula_sum '[Pm6 Ni2 Ru2]'
_cell_volume [247.9546]
_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  0.3071  0.2387  1
  Pm  Pm1  2  0.0000  0.5000  0.7434  1
  Ni  Ni2  2  0.0000  0.0000  0.5563  1
  Ru  Ru3  2  0.0000  0.0000  0.9436  1
]