data_[Pm8Dy4Ni4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Dy  1.2200  1.7500  1.1310
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [6.9512]
_cell_length_b [9.8966]
_cell_length_c [6.3734]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [Pm2DyNi]
_chemical_formula_sum '[Pm8 Dy4 Ni4]'
_cell_volume [438.4466]
_cell_formula_units_Z [4]
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  0.1796  0.0664  0.3244  1
  Dy  Dy1  4  0.0360  0.2500  0.8513  1
  Ni  Ni2  4  0.1127  0.7500  0.5557  1
]