data_[Rb4Hg2Mo2O8]
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
  Mo  2.1600  1.4500  0.7750
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [7.6724]
_cell_length_b [7.6724]
_cell_length_c [7.3735]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [Rb2HgMoO4]
_chemical_formula_sum '[Rb4 Hg2 Mo2 O8]'
_cell_volume [434.0489]
_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  0.0000  0.0000  0.0000  1.0
  Rb  Rb1  2  0.0000  0.5000  0.7500  1.0
  Hg  Hg2  2  0.0000  0.5000  0.2500  1.0
  Mo  Mo3  2  0.0000  0.0000  0.5000  1.0
  O  O4  8  0.0956  0.1623  0.6463  1.0
]