data_[Na2Zn4Sn1Ge3]
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
  Sn  1.9600  1.4500  0.8300
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [P-4m2]
_cell_length_a [4.2551]
_cell_length_b [4.2551]
_cell_length_c [11.4618]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [115]
_chemical_formula_structural [Na2Zn4SnGe3]
_chemical_formula_sum '[Na2 Zn4 Sn1 Ge3]'
_cell_volume [207.5242]
_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
[
  Na  Na0  2  0.0000  0.5000  0.7678  1.0
  Zn  Zn1  2  0.0000  0.5000  0.3441  1.0
  Zn  Zn2  1  0.0000  0.0000  0.0000  1.0
  Zn  Zn3  1  0.5000  0.5000  0.0000  1.0
  Sn  Sn4  1  0.5000  0.5000  0.5000  1.0
  Ge  Ge5  2  0.0000  0.5000  0.1306  1.0
  Ge  Ge6  1  0.0000  0.0000  0.5000  1.0
]