data_[Pm3Pr3Br6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Pr  1.1300  1.8500  1.0600
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [3.7055]
_cell_length_b [3.7055]
_cell_length_c [28.1132]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [PmPrBr2]
_chemical_formula_sum '[Pm3 Pr3 Br6]'
_cell_volume [334.3009]
_cell_formula_units_Z [3]
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
[
  Pm  Pm0  3  0.0000  0.0000  0.3344  1
  Pr  Pr1  3  0.0000  0.0000  0.4986  1
  Br  Br2  3  0.0000  0.0000  0.7488  1
  Br  Br3  3  0.0000  0.0000  0.9181  1
]