data_[Rb2Ag2Hg2I8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.4422]
_cell_length_b [8.6507]
_cell_length_c [10.0537]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.3966]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbAgHgI4]
_chemical_formula_sum '[Rb2 Ag2 Hg2 I8]'
_cell_volume [629.6479]
_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  0.2099  0.2500  0.0627  1.0
  Ag  Ag1  2  0.3067  0.2500  0.6984  1.0
  Hg  Hg2  2  0.2088  0.7500  0.3386  1.0
  I  I3  4  0.0509  0.0043  0.7255  1.0
  I  I4  2  0.3673  0.7500  0.0845  1.0
  I  I5  2  0.4635  0.2500  0.4647  1.0
]