data_[Na8Zn8Ge4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Zn  1.6500  1.3500  0.8800
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.4536]
_cell_length_b [5.7425]
_cell_length_c [8.1608]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.6949]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Na2Zn2Ge]
_chemical_formula_sum '[Na8 Zn8 Ge4]'
_cell_volume [433.8344]
_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  8  0.1500  0.3794  0.6601  1.0
  Zn  Zn1  8  0.1328  0.1301  0.9995  1.0
  Ge  Ge2  4  0.0000  0.1320  0.2500  1.0
]