data_[Sm4Ta4Br4O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Ta  1.5000  1.4500  0.8200
  Br  2.9600  1.1500  0.8825
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.4022]
_cell_length_b [3.9266]
_cell_length_c [6.9435]
_cell_angle_alpha [90.0000]
_cell_angle_beta [113.6187]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sm2Ta2Br2O7]
_chemical_formula_sum '[Sm4 Ta4 Br4 O14]'
_cell_volume [384.7559]
_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
[
  Sm  Sm0  4  0.1907  0.5000  0.6547  1
  Ta  Ta1  4  0.0342  0.0000  0.2983  1
  Br  Br2  4  0.1733  0.5000  0.0629  1
  O  O3  4  0.0455  0.5000  0.3386  1
  O  O4  4  0.0815  0.0000  0.6513  1
  O  O5  4  0.1756  0.0000  0.4329  1
  O  O6  2  0.0000  0.0000  0.0000  1
]