data_[Na4Ge8Sb4Se24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ge  2.0100  1.2500  0.7700
  Sb  2.0500  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [13.9338]
_cell_length_b [11.5230]
_cell_length_c [7.5495]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.9122]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaGe2SbSe6]
_chemical_formula_sum '[Na4 Ge8 Sb4 Se24]'
_cell_volume [1132.3037]
_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
[
  Na  Na0  4  0.0000  0.1426  0.2500  1.0
  Ge  Ge1  8  0.2138  0.4094  0.1987  1.0
  Sb  Sb2  4  0.0000  0.2507  0.7500  1.0
  Se  Se3  8  0.1013  0.0799  0.6484  1.0
  Se  Se4  8  0.1359  0.4531  0.4392  1.0
  Se  Se5  8  0.1553  0.2179  0.1190  1.0
]