data_[Na4Zn4O4]
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
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.2506]
_cell_length_b [4.1648]
_cell_length_c [5.0837]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.8759]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaZnO]
_chemical_formula_sum '[Na4 Zn4 O4]'
_cell_volume [222.5695]
_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  0.2294  0.0000  0.6963  1.0
  Zn  Zn1  4  0.0069  0.5000  0.7701  1.0
  O  O2  4  0.1393  0.5000  0.6016  1.0
]