data_[K2Rb6Na2Hg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  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 [P2_1/m]
_cell_length_a [10.3798]
_cell_length_b [6.1268]
_cell_length_c [12.3919]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.4230]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KRb3NaHg]
_chemical_formula_sum '[K2 Rb6 Na2 Hg2]'
_cell_volume [743.2076]
_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  0.1721  0.7500  0.0743  1.0
  Rb  Rb1  2  0.1751  0.7500  0.5837  1.0
  Rb  Rb2  2  0.3432  0.2500  0.8848  1.0
  K  K3  2  0.4830  0.7500  0.3878  1.0
  Na  Na4  2  0.1749  0.2500  0.3028  1.0
  Hg  Hg5  2  0.4452  0.2500  0.2150  1.0
]