data_[Pm4Nd2Al4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Nd  1.1400  1.8500  1.2765
  Al  1.6100  1.2500  0.6750
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.7713]
_cell_length_b [3.7500]
_cell_length_c [13.5552]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.8909]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Pm2NdAl2]
_chemical_formula_sum '[Pm4 Nd2 Al4]'
_cell_volume [291.8210]
_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  0.1457  0.2500  0.1111  1
  Pm  Pm1  2  0.2592  0.7500  0.5396  1
  Nd  Nd2  2  0.3235  0.2500  0.7676  1
  Al  Al3  2  0.2117  0.2500  0.3419  1
  Al  Al4  2  0.3595  0.7500  0.9608  1
]