data_[K4Ca2Nd8Nb4O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ca  1.0000  1.8000  1.1400
  Nd  1.1400  1.8500  1.2765
  Nb  1.6000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [12.5458]
_cell_length_b [5.8918]
_cell_length_c [9.1797]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.0564]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [K2CaNd4Nb2O12]
_chemical_formula_sum '[K4 Ca2 Nd8 Nb4 O24]'
_cell_volume [655.2397]
_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  0.1164  0.0000  0.4871  1
  K  K1  2  0.3535  0.5000  0.4525  1
  Ca  Ca2  2  0.4232  0.5000  0.7826  1
  Nd  Nd3  2  0.0783  0.5000  0.1832  1
  Nd  Nd4  2  0.1639  0.0000  0.9563  1
  Nd  Nd5  2  0.3733  0.5000  0.0940  1
  Nd  Nd6  2  0.4094  0.0000  0.8102  1
  Nb  Nb7  2  0.1482  0.5000  0.7055  1
  Nb  Nb8  2  0.3446  0.0000  0.2920  1
  O  O9  4  0.0012  0.2335  0.9916  1
  O  O10  4  0.0407  0.2567  0.7119  1
  O  O11  4  0.2351  0.2429  0.1823  1
  O  O12  4  0.2695  0.2756  0.8252  1
  O  O13  4  0.4575  0.2360  0.2889  1
  O  O14  2  0.1658  0.5000  0.5113  1
  O  O15  2  0.3266  0.0000  0.4897  1
]