data_[Pm12Ag4N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ag  1.9300  1.6000  1.0867
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [7.0514]
_cell_length_b [9.7594]
_cell_length_c [6.9993]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [Pm3AgN]
_chemical_formula_sum '[Pm12 Ag4 N4]'
_cell_volume [481.6720]
_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  8  0.2500  0.0460  0.2500  1
  Pm  Pm1  4  0.0000  0.2500  0.9102  1
  Ag  Ag2  4  0.0000  0.2500  0.4873  1
  N  N3  4  0.0000  0.0000  0.0000  1
]