data_[Sn4Hg4Ge4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sn  1.9600  1.4500  0.8300
  Hg  2.0000  1.5000  1.2450
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.3069]
_cell_length_b [8.9763]
_cell_length_c [7.6714]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.4309]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [SnHgGeO5]
_chemical_formula_sum '[Sn4 Hg4 Ge4 O20]'
_cell_volume [450.5630]
_cell_formula_units_Z [4]
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
[
  Sn  Sn0  4  0.0000  0.0000  0.0000  1
  Hg  Hg1  4  0.0000  0.3264  0.2500  1
  Ge  Ge2  4  0.0000  0.3243  0.7500  1
  O  O3  8  0.0864  0.2146  0.6103  1
  O  O4  8  0.1858  0.4560  0.9012  1
  O  O5  4  0.0000  0.0845  0.2500  1
]