data_[Ba2Na4Sn2As4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Na  0.9300  1.8000  1.1600
  Sn  1.9600  1.4500  0.8300
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.4503]
_cell_length_b [10.1885]
_cell_length_c [7.5942]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [BaNa2SnAs2]
_chemical_formula_sum '[Ba2 Na4 Sn2 As4]'
_cell_volume [344.3342]
_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
[
  Ba  Ba0  2  0.0000  0.4241  0.9781  1.0
  Na  Na1  2  0.0000  0.1557  0.3523  1.0
  Na  Na2  2  0.5000  0.0741  0.0378  1.0
  Sn  Sn3  2  0.5000  0.2814  0.6450  1.0
  As  As4  2  0.0000  0.1252  0.7403  1.0
  As  As5  2  0.5000  0.3350  0.2920  1.0
]