data_[Pm4Pb4C8O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Pb  2.3300  1.8000  1.1225
  C  2.5500  0.7000  0.3000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.9158]
_cell_length_b [8.7415]
_cell_length_c [7.1550]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.8212]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [PmPb(CO3)2]
_chemical_formula_sum '[Pm4 Pb4 C8 O24]'
_cell_volume [562.8933]
_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  4  0.0000  0.4108  0.7500  1
  Pb  Pb1  4  0.0000  0.0442  0.2500  1
  C  C2  8  0.2214  0.3581  0.2675  1
  O  O3  8  0.0890  0.3686  0.1110  1
  O  O4  8  0.1726  0.2165  0.7485  1
  O  O5  8  0.2346  0.4328  0.4302  1
]