data_[Na8Zn8]
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
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [4.8979]
_cell_length_b [6.4606]
_cell_length_c [10.7219]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [NaZn]
_chemical_formula_sum '[Na8 Zn8]'
_cell_volume [339.2780]
_cell_formula_units_Z [8]
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  0.2475  0.0959  1
  Na  Na1  2  0.0000  0.0000  0.3594  1
  Na  Na2  2  0.0000  0.0000  0.8048  1
  Zn  Zn3  4  0.0000  0.2517  0.5884  1
  Zn  Zn4  2  0.0000  0.5000  0.3911  1
  Zn  Zn5  2  0.0000  0.5000  0.8041  1
]