data_[Rb2Hg4O4]
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
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [6.2730]
_cell_length_b [6.2856]
_cell_length_c [7.1442]
_cell_angle_alpha [73.4140]
_cell_angle_beta [89.2463]
_cell_angle_gamma [68.2183]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Rb(HgO)2]
_chemical_formula_sum '[Rb2 Hg4 O4]'
_cell_volume [249.3308]
_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  0.3011  0.8251  0.9426  1.0
  Hg  Hg1  2  0.0955  0.3689  0.3799  1.0
  Hg  Hg2  2  0.3514  0.8012  0.4549  1.0
  O  O3  2  0.1623  0.0990  0.2224  1.0
  O  O4  2  0.4510  0.4544  0.2964  1.0
]