data_[Be2Ag2Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Be  1.5700  1.0500  0.5900
  Ag  1.9300  1.6000  1.0867
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.8389]
_cell_length_b [3.6487]
_cell_length_c [6.7641]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.7949]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [BeAgPb2]
_chemical_formula_sum '[Be2 Ag2 Pb4]'
_cell_volume [187.0512]
_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
[
  Be  Be0  2  0.0000  0.5000  0.0000  1
  Ag  Ag1  2  0.0000  0.0000  0.5000  1
  Pb  Pb2  4  0.2394  0.0000  0.2120  1
]