data_[Pm4Co4Si12Ni4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Co  1.8800  1.3500  0.7683
  Si  1.9000  1.1000  0.5400
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.9839]
_cell_length_b [12.0387]
_cell_length_c [5.6487]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [PmCoSi3Ni]
_chemical_formula_sum '[Pm4 Co4 Si12 Ni4]'
_cell_volume [406.9235]
_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  4  0.0000  0.2348  0.7500  1
  Co  Co1  4  0.0000  0.0429  0.2500  1
  Si  Si2  8  0.2128  0.5000  0.0000  1
  Si  Si3  4  0.0000  0.2174  0.2500  1
  Ni  Ni4  4  0.0000  0.3935  0.2500  1
]