data_[K2Eu2Nb8O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Eu  1.2000  1.8500  1.1985
  Nb  1.6000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [7.9911]
_cell_length_b [7.9237]
_cell_length_c [7.9875]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [KEuNb4O12]
_chemical_formula_sum '[K2 Eu2 Nb8 O24]'
_cell_volume [505.7661]
_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  2  0.0000  0.0000  0.0140  1.0
  Eu  Eu1  2  0.5000  0.0000  0.4801  1.0
  Nb  Nb2  8  0.2484  0.2466  0.7577  1.0
  O  O3  8  0.2630  0.2258  0.9987  1.0
  O  O4  4  0.0000  0.2235  0.7457  1.0
  O  O5  4  0.2378  0.0000  0.2814  1.0
  O  O6  4  0.2931  0.0000  0.7097  1.0
  O  O7  4  0.5000  0.2172  0.2590  1.0
]