data_[K4Rb2Na1Hg1]
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/m]
_cell_length_a [7.8084]
_cell_length_b [5.1639]
_cell_length_c [13.3326]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.7556]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [K4Rb2NaHg]
_chemical_formula_sum '[K4 Rb2 Na1 Hg1]'
_cell_volume [519.8706]
_cell_formula_units_Z [1]
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
[
  K  K0  2  0.0253  0.5000  0.8129  1.0
  K  K1  2  0.4543  0.0000  0.2011  1.0
  Rb  Rb2  1  0.0000  0.0000  0.5000  1.0
  Rb  Rb3  1  0.5000  0.5000  0.5000  1.0
  Na  Na4  1  0.5000  0.5000  0.0000  1.0
  Hg  Hg5  1  0.0000  0.0000  0.0000  1.0
]