data_[Na4Zn6Ge4]
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/m]
_cell_length_a [10.3879]
_cell_length_b [4.2745]
_cell_length_c [6.7044]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.8637]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Zn3Ge2]
_chemical_formula_sum '[Na4 Zn6 Ge4]'
_cell_volume [289.0210]
_cell_formula_units_Z [2]
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  0.1200  0.5000  0.3597  1.0
  Zn  Zn1  4  0.2003  0.5000  0.8933  1.0
  Zn  Zn2  2  0.0000  0.0000  0.0000  1.0
  Ge  Ge3  4  0.1044  0.0000  0.7058  1.0
]