data_[Er6Si2Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Si  1.9000  1.1000  0.5400
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [4.5859]
_cell_length_b [6.8283]
_cell_length_c [8.7910]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [Er3SiPb]
_chemical_formula_sum '[Er6 Si2 Pb2]'
_cell_volume [275.2833]
_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
[
  Er  Er0  4  0.0000  0.2479  0.3325  1.0
  Er  Er1  2  0.0000  0.0000  0.9238  1.0
  Si  Si2  2  0.0000  0.0000  0.6003  1.0
  Pb  Pb3  2  0.0000  0.5000  0.8520  1.0
]