data_[Na2La2As4O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  La  1.1000  1.9500  1.1720
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [7.4286]
_cell_length_b [9.7089]
_cell_length_c [5.1539]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.4890]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [NaLaAs2O7]
_chemical_formula_sum '[Na2 La2 As4 O14]'
_cell_volume [362.9204]
_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  0.0000  0.2495  0.0000  1.0
  La  La1  2  0.0000  0.6347  0.0000  1.0
  As  As2  4  0.2081  0.9613  0.4167  1.0
  O  O3  4  0.1357  0.4478  0.2896  1.0
  O  O4  4  0.1774  0.8089  0.2519  1.0
  O  O5  4  0.2484  0.0944  0.2203  1.0
  O  O6  2  0.0000  0.0240  0.5000  1.0
]