data_[Rb2Er2Hg2O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Er  1.2400  1.7500  1.0300
  Hg  2.0000  1.5000  1.2450
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.2795]
_cell_length_b [3.5574]
_cell_length_c [9.3923]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.6671]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbErHgO3]
_chemical_formula_sum '[Rb2 Er2 Hg2 O6]'
_cell_volume [238.1974]
_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  0.0356  0.7500  0.3331  1.0
  Er  Er1  2  0.4667  0.7500  0.6491  1.0
  Hg  Hg2  2  0.3020  0.7500  0.0018  1.0
  O  O3  2  0.2435  0.7500  0.7855  1.0
  O  O4  2  0.3428  0.2500  0.5158  1.0
  O  O5  2  0.3631  0.7500  0.2209  1.0
]