data_[Ta8Cr4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ta  1.5000  1.4500  0.8200
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.9025]
_cell_length_b [5.4541]
_cell_length_c [6.8652]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.4786]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Ta2CrO5]
_chemical_formula_sum '[Ta8 Cr4 O20]'
_cell_volume [389.3776]
_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
[
  Ta  Ta0  8  0.1303  0.5000  0.2133  1
  Cr  Cr1  4  0.0000  0.0000  0.0000  1
  O  O2  8  0.0643  0.3345  0.4332  1
  O  O3  8  0.2168  0.1905  0.1994  1
  O  O4  4  0.0000  0.2153  0.7500  1
]