data_[Pm4B6N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  B  2.0400  0.8500  0.4100
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [3.3636]
_cell_length_b [13.1601]
_cell_length_c [3.9245]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Pm2B3N2]
_chemical_formula_sum '[Pm4 B6 N4]'
_cell_volume [173.7181]
_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  4  0.0000  0.3677  0.5000  1
  B  B1  4  0.0000  0.2220  0.0000  1
  B  B2  2  0.0000  0.0000  0.0000  1
  N  N3  4  0.0000  0.1078  0.0000  1
]