data_[Ho4Nb4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Nb  1.6000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.1378]
_cell_length_b [11.0746]
_cell_length_c [5.1389]
_cell_angle_alpha [90.0000]
_cell_angle_beta [131.9742]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [HoNbO4]
_chemical_formula_sum '[Ho4 Nb4 O16]'
_cell_volume [301.9981]
_cell_formula_units_Z [4]
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
[
  Ho  Ho0  4  0.0000  0.3719  0.7500  1.0
  Nb  Nb1  4  0.0000  0.1086  0.2500  1.0
  O  O2  8  0.1617  0.2109  0.1598  1.0
  O  O3  8  0.2491  0.5325  0.7950  1.0
]