data_[Pm2Pr2H2C2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Pr  1.1300  1.8500  1.0600
  H  2.2000  0.2500  0.0000
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [5.2225]
_cell_length_b [4.1863]
_cell_length_c [7.6967]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [PmPrHC]
_chemical_formula_sum '[Pm2 Pr2 H2 C2]'
_cell_volume [168.2735]
_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  2  0.0000  0.0000  0.8442  1
  Pr  Pr1  2  0.5000  0.0000  0.1616  1
  H  H2  2  0.5000  0.0000  0.8362  1
  C  C3  2  0.0000  0.0000  0.1703  1
]