data_[Cs4Rb8Na4Hg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.5298]
_cell_length_b [10.0500]
_cell_length_c [7.8409]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.1816]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Cs2Rb4Na2Hg]
_chemical_formula_sum '[Cs4 Rb8 Na4 Hg2]'
_cell_volume [1301.6179]
_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
[
  Cs  Cs0  4  0.1506  0.5000  0.7157  1.0
  Rb  Rb1  8  0.1029  0.2341  0.2200  1.0
  Na  Na2  4  0.1625  0.0000  0.7332  1.0
  Hg  Hg3  2  0.0000  0.0000  0.5000  1.0
]