data_[Sr2Nb4Tl4O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Nb  1.6000  1.4500  0.8200
  Tl  1.6200  1.9000  1.3325
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.7573]
_cell_length_b [5.7135]
_cell_length_c [11.8057]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.1560]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [SrNb2Tl2O7]
_chemical_formula_sum '[Sr2 Nb4 Tl4 O14]'
_cell_volume [382.2557]
_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
[
  Sr  Sr0  2  0.0000  0.0000  0.0000  1.0
  Nb  Nb1  4  0.0859  0.5000  0.1820  1.0
  Tl  Tl2  4  0.1917  0.0000  0.3903  1.0
  O  O3  8  0.1944  0.2526  0.8353  1.0
  O  O4  4  0.1151  0.5000  0.3444  1.0
  O  O5  2  0.0000  0.5000  0.0000  1.0
]