data_[Pm1Mg2U1N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Mg  1.3100  1.5000  0.8600
  U  1.3800  1.7500  0.9913
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [5.6134]
_cell_length_b [3.4543]
_cell_length_c [6.0082]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.9626]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [PmMg2UN4]
_chemical_formula_sum '[Pm1 Mg2 U1 N4]'
_cell_volume [108.7888]
_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  1  0.5000  0.5000  0.0000  1
  Mg  Mg1  1  0.0000  0.0000  0.0000  1
  Mg  Mg2  1  0.0000  0.5000  0.5000  1
  U  U3  1  0.5000  0.0000  0.5000  1
  N  N4  2  0.2509  0.5000  0.2639  1
  N  N5  2  0.2639  0.0000  0.7194  1
]