data_[Nb2Sb2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nb  1.6000  1.4500  0.8200
  Sb  2.0500  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [11.4964]
_cell_length_b [3.9554]
_cell_length_c [4.2550]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.0251]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [NbSbO4]
_chemical_formula_sum '[Nb2 Sb2 O8]'
_cell_volume [192.7453]
_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
[
  Nb  Nb0  2  0.0025  0.0000  0.0754  1.0
  Sb  Sb1  2  0.2909  0.0000  0.7315  1.0
  O  O2  2  0.0051  0.0000  0.5003  1.0
  O  O3  2  0.1669  0.0000  0.0379  1.0
  O  O4  2  0.3253  0.5000  0.9118  1.0
  O  O5  2  0.4602  0.0000  0.9930  1.0
]