data_[Sr2Si2Pb2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Si  1.9000  1.1000  0.5400
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.9227]
_cell_length_b [5.7702]
_cell_length_c [7.2443]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.4388]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [SrSiPbO4]
_chemical_formula_sum '[Sr2 Si2 Pb2 O8]'
_cell_volume [228.8286]
_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
[
  Sr  Sr0  2  0.2827  0.7500  0.0413  1.0
  Si  Si1  2  0.2752  0.2500  0.2877  1.0
  Pb  Pb2  2  0.1758  0.7500  0.4808  1.0
  O  O3  4  0.0904  0.0222  0.2220  1.0
  O  O4  2  0.4378  0.2500  0.5315  1.0
  O  O5  2  0.4541  0.2500  0.1593  1.0
]