data_[Rb2La4Ta2Ti4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  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 [Cm]
_cell_length_a [5.4809]
_cell_length_b [5.4868]
_cell_length_c [15.4924]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.5473]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [RbLa2TaTi2O10]
_chemical_formula_sum '[Rb2 La4 Ta2 Ti4 O20]'
_cell_volume [465.8726]
_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
[
  Rb  Rb0  2  0.0000  0.5000  0.5075  1.0
  La  La1  2  0.0006  0.5000  0.1306  1.0
  La  La2  2  0.0068  0.5000  0.8425  1.0
  Ta  Ta3  2  0.4997  0.5000  0.2843  1.0
  Ti  Ti4  2  0.0003  0.0000  0.7093  1.0
  Ti  Ti5  2  0.4847  0.5000  0.9980  1.0
  O  O6  4  0.2110  0.2626  0.0085  1.0
  O  O7  4  0.2473  0.2504  0.2539  1.0
  O  O8  4  0.2498  0.2495  0.7468  1.0
  O  O9  2  0.0019  0.0000  0.4003  1.0
  O  O10  2  0.4881  0.5000  0.1316  1.0
  O  O11  2  0.4898  0.5000  0.8776  1.0
  O  O12  2  0.4990  0.5000  0.5998  1.0
]