data_[Hg2Ge1Te2F2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hg  2.0000  1.5000  1.2450
  Ge  2.0100  1.2500  0.7700
  Te  2.1000  1.4000  1.2933
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-4m2]
_cell_length_a [4.0697]
_cell_length_b [4.0697]
_cell_length_c [9.2758]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [115]
_chemical_formula_structural [Hg2GeTe2F2]
_chemical_formula_sum '[Hg2 Ge1 Te2 F2]'
_cell_volume [153.6337]
_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
[
  Hg  Hg0  2  0.0000  0.5000  0.6563  1
  Ge  Ge1  1  0.0000  0.0000  0.0000  1
  Te  Te2  2  0.0000  0.5000  0.1953  1
  F  F3  1  0.0000  0.0000  0.5000  1
  F  F4  1  0.5000  0.5000  0.5000  1
]