data_[Na4Sr20Zn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  Zn  1.6500  1.3500  0.8800
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [13.4653]
_cell_length_b [8.1019]
_cell_length_c [13.3398]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.9454]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaSr5Zn]
_chemical_formula_sum '[Na4 Sr20 Zn4]'
_cell_volume [1359.1348]
_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  0.4629  0.7500  1.0
  Sr  Sr1  8  0.1259  0.3310  0.0399  1.0
  Sr  Sr2  8  0.2144  0.1751  0.6317  1.0
  Sr  Sr3  4  0.0000  0.0362  0.2500  1.0
  Zn  Zn4  4  0.0000  0.0000  0.0000  1.0
]