data_[Na2Sn2As2C2O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sn  1.9600  1.4500  0.8300
  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]
_cell_length_a [5.4379]
_cell_length_b [6.8370]
_cell_length_c [9.5307]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.8862]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [4]
_chemical_formula_structural [NaSnAsCO7]
_chemical_formula_sum '[Na2 Sn2 As2 C2 O14]'
_cell_volume [353.8887]
_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  2  0.2247  0.4986  0.8117  1
  Sn  Sn1  2  0.2122  0.2598  0.3402  1
  As  As2  2  0.2763  0.7534  0.4326  1
  C  C3  2  0.2794  0.2404  0.0778  1
  O  O4  2  0.0566  0.2441  0.1329  1
  O  O5  2  0.1463  0.7421  0.5935  1
  O  O6  2  0.1776  0.9506  0.3351  1
  O  O7  2  0.2014  0.5606  0.3253  1
  O  O8  2  0.3155  0.2483  0.9516  1
  O  O9  2  0.4067  0.2693  0.5323  1
  O  O10  2  0.4619  0.2308  0.1797  1
]