data_[Rb2Tb2Cd2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tb  1.1000  1.7500  0.9815
  Cd  1.6900  1.5500  1.0900
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [9.2653]
_cell_length_b [4.3048]
_cell_length_c [10.4230]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.8841]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbTbCdSe3]
_chemical_formula_sum '[Rb2 Tb2 Cd2 Se6]'
_cell_volume [393.3504]
_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  2  0.2165  0.2500  0.2372  1.0
  Tb  Tb1  2  0.3300  0.7500  0.8661  1.0
  Cd  Cd2  2  0.0845  0.2500  0.6116  1.0
  Se  Se3  2  0.1147  0.2500  0.8703  1.0
  Se  Se4  2  0.2243  0.7500  0.5474  1.0
  Se  Se5  2  0.4676  0.7500  0.1509  1.0
]