data_[Cs2Na4C4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Na  0.9300  1.8000  1.1600
  C  2.5500  0.7000  0.3000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.6508]
_cell_length_b [5.9889]
_cell_length_c [6.1112]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.0080]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [CsNa2(CO3)2]
_chemical_formula_sum '[Cs2 Na4 C4 O12]'
_cell_volume [356.0888]
_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
[
  Cs  Cs0  2  0.0000  0.5000  0.5000  1.0
  Na  Na1  4  0.1827  0.0000  0.8004  1.0
  C  C2  4  0.1472  0.0000  0.2386  1.0
  O  O3  8  0.1862  0.1860  0.1788  1.0
  O  O4  4  0.0708  0.0000  0.3570  1.0
]