data_[Na4Y2Zn2Ge4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Y  1.2200  1.8000  1.0400
  Zn  1.6500  1.3500  0.8800
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.4185]
_cell_length_b [8.5012]
_cell_length_c [7.2183]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Na2YZnGe2]
_chemical_formula_sum '[Na4 Y2 Zn2 Ge4]'
_cell_volume [271.1365]
_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  2  0.0000  0.1523  0.8388  1
  Na  Na1  2  0.5000  0.0858  0.5200  1
  Y  Y2  2  0.0000  0.4626  0.5056  1
  Zn  Zn3  2  0.5000  0.3132  0.1509  1
  Ge  Ge4  2  0.0000  0.1909  0.2457  1
  Ge  Ge5  2  0.5000  0.3905  0.7847  1
]