data_[Pm12Ir4C2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ir  2.2000  1.3500  0.7650
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.6848]
_cell_length_b [7.3293]
_cell_length_c [11.5587]
_cell_angle_alpha [90.0000]
_cell_angle_beta [122.8901]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Pm6Ir2C]
_chemical_formula_sum '[Pm12 Ir4 C2]'
_cell_volume [475.5454]
_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  0.1301  0.6712  0.9414  1
  Pm  Pm1  4  0.2616  0.1941  0.9335  1
  Pm  Pm2  4  0.3851  0.5454  0.7568  1
  Ir  Ir3  4  0.1989  0.5999  0.2406  1
  C  C4  2  0.5000  0.0000  0.5000  1
]