data_[Pm8Np4Al4N20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Np  1.3600  1.7500  1.0000
  Al  1.6100  1.2500  0.6750
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.4229]
_cell_length_b [13.8933]
_cell_length_c [10.2827]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Pm2NpAlN5]
_chemical_formula_sum '[Pm8 Np4 Al4 N20]'
_cell_volume [489.0033]
_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  0.1056  0.6964  1
  Pm  Pm1  4  0.0000  0.1249  0.2997  1
  Np  Np2  4  0.0000  0.2137  0.0098  1
  Al  Al3  4  0.0000  0.4855  0.4698  1
  N  N4  4  0.0000  0.0559  0.0348  1
  N  N5  4  0.0000  0.2826  0.6407  1
  N  N6  4  0.0000  0.2985  0.3816  1
  N  N7  4  0.0000  0.3702  0.0047  1
  N  N8  4  0.0000  0.4982  0.7864  1
]