data_[Na4Ni2As2C2O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ni  1.9100  1.3500  0.7400
  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 [P2_1/m]
_cell_length_a [5.2810]
_cell_length_b [6.7120]
_cell_length_c [9.1172]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.4251]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Na2NiAsCO7]
_chemical_formula_sum '[Na4 Ni2 As2 C2 O14]'
_cell_volume [322.8811]
_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  4  0.2328  0.0047  0.7671  1
  Ni  Ni1  2  0.2144  0.2500  0.3473  1
  As  As2  2  0.2905  0.7500  0.4269  1
  C  C3  2  0.2805  0.2500  0.0777  1
  O  O4  4  0.2087  0.5500  0.3177  1
  O  O5  2  0.0630  0.2500  0.1420  1
  O  O6  2  0.1543  0.7500  0.5941  1
  O  O7  2  0.2874  0.2500  0.9399  1
  O  O8  2  0.3791  0.2500  0.5437  1
  O  O9  2  0.4767  0.2500  0.1669  1
]