data_[Si4Ru2Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  Ru  2.2000  1.3000  0.6610
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [3.6320]
_cell_length_b [5.2696]
_cell_length_c [7.7858]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Si2RuPb]
_chemical_formula_sum '[Si4 Ru2 Pb2]'
_cell_volume [149.0152]
_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
[
  Si  Si0  2  0.0000  0.0000  0.9906  1
  Si  Si1  2  0.0000  0.5000  0.7025  1
  Ru  Ru2  2  0.0000  0.5000  0.3044  1
  Pb  Pb3  2  0.0000  0.0000  0.5026  1
]