data_[Rb2Ti2As4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ti  1.5400  1.4000  0.8517
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.8152]
_cell_length_b [5.6117]
_cell_length_c [8.0628]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.1572]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbTi(AsO4)2]
_chemical_formula_sum '[Rb2 Ti2 As4 O16]'
_cell_volume [384.9800]
_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  0.0000  0.0000  1.0
  Ti  Ti1  2  0.0000  0.0000  0.5000  1.0
  As  As2  4  0.0950  0.5000  0.2968  1.0
  O  O3  8  0.0091  0.2492  0.6788  1.0
  O  O4  4  0.1256  0.5000  0.0927  1.0
  O  O5  4  0.2257  0.0000  0.5554  1.0
]