data_[Pm2Cu1Ni3Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Cu  1.9000  1.3500  0.8200
  Ni  1.9100  1.3500  0.7400
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P-4m2]
_cell_length_a [4.4410]
_cell_length_b [4.4410]
_cell_length_c [10.2671]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [115]
_chemical_formula_structural [Pm2CuNi3Sn4]
_chemical_formula_sum '[Pm2 Cu1 Ni3 Sn4]'
_cell_volume [202.4890]
_cell_formula_units_Z [1]
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  0.5000  0.7410  1
  Cu  Cu1  1  0.5000  0.5000  0.5000  1
  Ni  Ni2  2  0.0000  0.5000  0.1256  1
  Ni  Ni3  1  0.0000  0.0000  0.5000  1
  Sn  Sn4  2  0.0000  0.5000  0.3689  1
  Sn  Sn5  1  0.0000  0.0000  0.0000  1
  Sn  Sn6  1  0.5000  0.5000  0.0000  1
]