data_[Rb2Hg7Pb1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Hg  2.0000  1.5000  1.2450
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P-4m2]
_cell_length_a [5.3768]
_cell_length_b [5.3768]
_cell_length_c [12.0903]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [115]
_chemical_formula_structural [Rb2Hg7Pb]
_chemical_formula_sum '[Rb2 Hg7 Pb1]'
_cell_volume [349.5287]
_cell_formula_units_Z [1]
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  0.0000  0.5000  0.2527  1.0
  Hg  Hg1  2  0.0000  0.5000  0.6300  1.0
  Hg  Hg2  2  0.0000  0.5000  0.8752  1.0
  Hg  Hg3  1  0.0000  0.0000  0.0000  1.0
  Hg  Hg4  1  0.0000  0.0000  0.5000  1.0
  Hg  Hg5  1  0.5000  0.5000  0.5000  1.0
  Pb  Pb6  1  0.5000  0.5000  0.0000  1.0
]