data_[Na2Al10Zn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Al  1.6100  1.2500  0.6750
  Zn  1.6500  1.3500  0.8800
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [8.1359]
_cell_length_b [9.2554]
_cell_length_c [4.9590]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [NaAl5Zn4]
_chemical_formula_sum '[Na2 Al10 Zn8]'
_cell_volume [373.4151]
_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  0.0000  0.9039  1
  Al  Al1  8  0.1724  0.2515  0.2502  1
  Al  Al2  2  0.0000  0.5000  0.1584  1
  Zn  Zn3  4  0.0000  0.3179  0.7493  1
  Zn  Zn4  4  0.2338  0.5000  0.5433  1
]