data_[K1Hg2C2O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Hg  2.0000  1.5000  1.2450
  C  2.5500  0.7000  0.3000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [5.3999]
_cell_length_b [5.7665]
_cell_length_c [6.9065]
_cell_angle_alpha [112.3489]
_cell_angle_beta [90.3092]
_cell_angle_gamma [110.0647]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [KHg2(CO3)2]
_chemical_formula_sum '[K1 Hg2 C2 O6]'
_cell_volume [184.5352]
_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  1  0.5000  0.5000  0.0000  1.0
  Hg  Hg1  2  0.2417  0.7137  0.5666  1.0
  C  C2  2  0.1916  0.0301  0.2723  1.0
  O  O3  2  0.0643  0.0525  0.7537  1.0
  O  O4  2  0.3153  0.8721  0.2777  1.0
  O  O5  2  0.3421  0.2752  0.2953  1.0
]