data_[K2Pr2Hg2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Pr  1.1300  1.8500  1.0600
  Hg  2.0000  1.5000  1.2450
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [9.0089]
_cell_length_b [4.3844]
_cell_length_c [10.3093]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.3359]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KPrHgSe3]
_chemical_formula_sum '[K2 Pr2 Hg2 Se6]'
_cell_volume [392.7057]
_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
[
  K  K0  2  0.2116  0.2500  0.2368  1.0
  Pr  Pr1  2  0.3250  0.7500  0.8599  1.0
  Hg  Hg2  2  0.0941  0.2500  0.6125  1.0
  Se  Se3  2  0.0933  0.2500  0.8685  1.0
  Se  Se4  2  0.2311  0.7500  0.5361  1.0
  Se  Se5  2  0.4549  0.7500  0.1531  1.0
]