data_[K4Yb2Ta4O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Yb  1.1000  1.7500  1.0840
  Ta  1.5000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [3.9782]
_cell_length_b [3.9782]
_cell_length_c [21.9116]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [K2YbTa2O7]
_chemical_formula_sum '[K4 Yb2 Ta4 O14]'
_cell_volume [346.7802]
_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
[
  K  K0  4  0.0000  0.0000  0.1935  1.0
  Yb  Yb1  2  0.0000  0.0000  0.0000  1.0
  Ta  Ta2  4  0.0000  0.0000  0.4063  1.0
  O  O3  8  0.0000  0.5000  0.0828  1.0
  O  O4  4  0.0000  0.0000  0.3202  1.0
  O  O5  2  0.0000  0.0000  0.5000  1.0
]