data_[Rb4Ag4Hg16]
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
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.9889]
_cell_length_b [8.2075]
_cell_length_c [5.2777]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.7522]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbAgHg4]
_chemical_formula_sum '[Rb4 Ag4 Hg16]'
_cell_volume [812.9689]
_cell_formula_units_Z [4]
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  4  0.1861  0.0000  0.2153  1.0
  Ag  Ag1  4  0.0228  0.5000  0.2616  1.0
  Hg  Hg2  8  0.1167  0.2899  0.6728  1.0
  Hg  Hg3  4  0.0000  0.1789  0.0000  1.0
  Hg  Hg4  4  0.1771  0.5000  0.2110  1.0
]