data_[Na20Bi8As4C16O64]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Bi  2.0200  1.6000  1.0350
  As  2.1800  1.1500  0.6600
  C  2.5500  0.7000  0.3000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [14.7062]
_cell_length_b [15.0247]
_cell_length_c [10.3429]
_cell_angle_alpha [90.0000]
_cell_angle_beta [134.4343]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Na5Bi2As(CO4)4]
_chemical_formula_sum '[Na20 Bi8 As4 C16 O64]'
_cell_volume [1631.8563]
_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  8  0.2005  0.1254  0.1417  1
  Na  Na1  8  0.2006  0.1256  0.7591  1
  Na  Na2  4  0.0000  0.0681  0.2500  1
  Bi  Bi3  4  0.0000  0.5000  0.0000  1
  Bi  Bi4  4  0.2500  0.2500  0.5000  1
  As  As5  4  0.0000  0.1261  0.7500  1
  C  C6  8  0.0015  0.2794  0.0619  1
  C  C7  8  0.1958  0.4682  0.4450  1
  O  O8  8  0.0006  0.0578  0.6140  1
  O  O9  8  0.0565  0.3465  0.0632  1
  O  O10  8  0.0705  0.2173  0.1856  1
  O  O11  8  0.1227  0.2721  0.5606  1
  O  O12  8  0.1392  0.4751  0.8150  1
  O  O13  8  0.1398  0.1851  0.8902  1
  O  O14  8  0.1886  0.4749  0.5634  1
  O  O15  8  0.2361  0.9039  0.0377  1
]