data_[Rb4Hg4Cl4]
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
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.6068]
_cell_length_b [6.5995]
_cell_length_c [11.2270]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.7409]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbHgCl]
_chemical_formula_sum '[Rb4 Hg4 Cl4]'
_cell_volume [485.0533]
_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  0.2144  0.5000  0.8484  1.0
  Hg  Hg1  4  0.2469  0.5000  0.4589  1.0
  Cl  Cl2  4  0.2147  0.0000  0.8534  1.0
]