data_[Rb2Mg2Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Mg  1.3100  1.5000  0.8600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [5.1255]
_cell_length_b [5.3026]
_cell_length_c [11.7726]
_cell_angle_alpha [82.4482]
_cell_angle_beta [77.8431]
_cell_angle_gamma [61.2592]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [RbMgPb]
_chemical_formula_sum '[Rb2 Mg2 Pb2]'
_cell_volume [274.0829]
_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
[
  Rb  Rb0  2  0.2514  0.8020  0.1854  1.0
  Mg  Mg1  2  0.1946  0.5350  0.5783  1.0
  Pb  Pb2  2  0.4956  0.1330  0.3714  1.0
]