data_[Li2Al2As4O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Al  1.6100  1.2500  0.6750
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [6.6864]
_cell_length_b [8.1437]
_cell_length_c [4.7078]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.2263]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [LiAlAs2O7]
_chemical_formula_sum '[Li2 Al2 As4 O14]'
_cell_volume [248.4853]
_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
[
  Li  Li0  2  0.0000  0.2463  0.5000  1.0
  Al  Al1  2  0.0000  0.6221  0.5000  1.0
  As  As2  4  0.2154  0.9636  0.9054  1.0
  O  O3  4  0.1035  0.4442  0.7687  1.0
  O  O4  4  0.1512  0.7755  0.7629  1.0
  O  O5  4  0.2457  0.6060  0.3431  1.0
  O  O6  2  0.0000  0.0582  0.0000  1.0
]