data_[Rb3Na6Tm3Br18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Tm  1.2500  1.7500  1.0950
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.6375]
_cell_length_b [7.6375]
_cell_length_c [20.9308]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [RbNa2TmBr6]
_chemical_formula_sum '[Rb3 Na6 Tm3 Br18]'
_cell_volume [1057.3511]
_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
[
  Rb  Rb0  3  0.0000  0.0000  0.1945  1
  Na  Na1  3  0.0000  0.0000  0.4799  1
  Na  Na2  3  0.0000  0.0000  0.9964  1
  Tm  Tm3  3  0.0000  0.0000  0.6730  1
  Br  Br4  9  0.0038  0.3122  0.7433  1
  Br  Br5  9  0.0268  0.6082  0.2546  1
]