data_[Na2La4Ta2Ti4O20]
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
  Ta  1.5000  1.4500  0.8200
  Ti  1.5400  1.4000  0.8517
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [3.8812]
_cell_length_b [3.8833]
_cell_length_c [30.0555]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [NaLa2TaTi2O10]
_chemical_formula_sum '[Na2 La4 Ta2 Ti4 O20]'
_cell_volume [452.9817]
_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  0.5000  0.7595  1.0
  La  La1  2  0.0000  0.0000  0.4269  1.0
  La  La2  2  0.0000  0.0000  0.5754  1.0
  Ta  Ta3  2  0.0000  0.0000  0.1538  1.0
  Ti  Ti4  2  0.0000  0.0000  0.0079  1.0
  Ti  Ti5  2  0.0000  0.0000  0.8584  1.0
  O  O6  2  0.0000  0.0000  0.0763  1.0
  O  O7  2  0.0000  0.0000  0.2137  1.0
  O  O8  2  0.0000  0.0000  0.8021  1.0
  O  O9  2  0.0000  0.0000  0.9458  1.0
  O  O10  2  0.0000  0.5000  0.0138  1.0
  O  O11  2  0.0000  0.5000  0.1380  1.0
  O  O12  2  0.0000  0.5000  0.3781  1.0
  O  O13  2  0.0000  0.5000  0.5140  1.0
  O  O14  2  0.0000  0.5000  0.6387  1.0
  O  O15  2  0.0000  0.5000  0.8775  1.0
]