data_[Na4Cu4As8O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cu  1.9000  1.3500  0.8200
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.6795]
_cell_length_b [10.0912]
_cell_length_c [5.4989]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.3604]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaCu(AsO3)2]
_chemical_formula_sum '[Na4 Cu4 As8 O24]'
_cell_volume [559.1049]
_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  0.1024  0.2500  1.0
  Cu  Cu1  4  0.0000  0.2454  0.7500  1.0
  As  As2  8  0.2027  0.4119  0.2115  1.0
  O  O3  8  0.1192  0.2696  0.0988  1.0
  O  O4  8  0.1299  0.0899  0.6801  1.0
  O  O5  8  0.1405  0.4612  0.4686  1.0
]