data_[Cs2Rb4Na2Hg4]
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 [Pmc2_1]
_cell_length_a [5.5551]
_cell_length_b [11.2779]
_cell_length_c [9.8627]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [CsRb2NaHg2]
_chemical_formula_sum '[Cs2 Rb4 Na2 Hg4]'
_cell_volume [617.8991]
_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  2  0.0000  0.4275  0.9791  1.0
  Rb  Rb1  2  0.0000  0.1797  0.3660  1.0
  Rb  Rb2  2  0.5000  0.0825  0.0269  1.0
  Na  Na3  2  0.5000  0.3064  0.6558  1.0
  Hg  Hg4  2  0.0000  0.1406  0.7399  1.0
  Hg  Hg5  2  0.5000  0.3928  0.2779  1.0
]