data_[Rb4Sm2Br10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sm  1.1700  1.8500  1.2290
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [8.5411]
_cell_length_b [8.5411]
_cell_length_c [9.9348]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [Rb2SmBr5]
_chemical_formula_sum '[Rb4 Sm2 Br10]'
_cell_volume [724.7518]
_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
[
  Rb  Rb0  4  0.0000  0.5000  0.2413  1.0
  Sm  Sm1  2  0.0000  0.0000  0.9759  1.0
  Br  Br2  8  0.2301  0.2301  0.0291  1.0
  Br  Br3  2  0.0000  0.0000  0.7076  1.0
]