data_[Pm2Zn2Ni2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Zn  1.6500  1.3500  0.8800
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [3.3607]
_cell_length_b [3.3607]
_cell_length_c [10.0260]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [PmZnNi]
_chemical_formula_sum '[Pm2 Zn2 Ni2]'
_cell_volume [113.2347]
_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  2  0.0000  0.0000  0.6241  1
  Zn  Zn1  2  0.0000  0.0000  0.9158  1
  Ni  Ni2  2  0.0000  0.0000  0.3102  1
]