data_[Pb4C4O10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  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/m]
_cell_length_a [8.8545]
_cell_length_b [6.2227]
_cell_length_c [6.5088]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.3397]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pb2C2O5]
_chemical_formula_sum '[Pb4 C4 O10]'
_cell_volume [357.0710]
_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
[
  Pb  Pb0  4  0.0108  0.5000  0.2441  1
  C  C1  4  0.1583  0.0000  0.9986  1
  O  O2  4  0.2050  0.0000  0.8224  1
  O  O3  4  0.2291  0.0000  0.1759  1
  O  O4  2  0.0000  0.0000  0.0000  1
]