data_[V4Hg4Pb4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  V  1.6300  1.3500  0.7775
  Hg  2.0000  1.5000  1.2450
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [8.4665]
_cell_length_b [9.1197]
_cell_length_c [8.2840]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.7546]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [VHgPbO5]
_chemical_formula_sum '[V4 Hg4 Pb4 O20]'
_cell_volume [566.0404]
_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
[
  V  V0  4  0.0000  0.3548  0.7500  1.0
  Hg  Hg1  4  0.0000  0.3193  0.2500  1.0
  Pb  Pb2  4  0.0000  0.0000  0.0000  1.0
  O  O3  8  0.0276  0.2477  0.5923  1.0
  O  O4  8  0.1842  0.4754  0.8626  1.0
  O  O5  4  0.0000  0.0889  0.2500  1.0
]