data_[Pr4Er4Br4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Er  1.2400  1.7500  1.0300
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.2375]
_cell_length_b [3.6313]
_cell_length_c [10.7361]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.9657]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [PrErBr]
_chemical_formula_sum '[Pr4 Er4 Br4]'
_cell_volume [379.5459]
_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
[
  Pr  Pr0  4  0.0366  0.0000  0.2789  1
  Er  Er1  4  0.1594  0.5000  0.0534  1
  Br  Br2  4  0.1920  0.0000  0.6239  1
]