data_[Eu1Nb2Cu1Br1O7]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Eu  1.2000  1.8500  1.1985
  Nb  1.6000  1.4500  0.8200
  Cu  1.9000  1.3500  0.8200
  Br  2.9600  1.1500  0.8825
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [3.9379]
_cell_length_b [3.9379]
_cell_length_c [11.6937]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [EuNb2CuBrO7]
_chemical_formula_sum '[Eu1 Nb2 Cu1 Br1 O7]'
_cell_volume [181.3373]
_cell_formula_units_Z [1]
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
[
  Eu  Eu0  1  0.0000  0.0000  0.0000  1.0
  Nb  Nb1  2  0.5000  0.5000  0.1884  1.0
  Cu  Cu2  1  0.5000  0.5000  0.5000  1.0
  Br  Br3  1  0.0000  0.0000  0.5000  1.0
  O  O4  4  0.0000  0.5000  0.1532  1.0
  O  O5  2  0.5000  0.5000  0.3441  1.0
  O  O6  1  0.5000  0.5000  0.0000  1.0
]