data_[K1Hg2Ge1F8]
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
  Ge  2.0100  1.2500  0.7700
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [5.4913]
_cell_length_b [7.0248]
_cell_length_c [5.5422]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.5789]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [KHg2GeF8]
_chemical_formula_sum '[K1 Hg2 Ge1 F8]'
_cell_volume [213.7064]
_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  0.0000  0.5000  0.0000  1
  Hg  Hg1  2  0.5000  0.2282  0.5000  1
  Ge  Ge2  1  0.0000  0.0000  0.0000  1
  F  F3  4  0.1647  0.1837  0.1754  1
  F  F4  2  0.2429  0.0000  0.7754  1
  F  F5  2  0.3376  0.5000  0.6770  1
]