data_[Rb6Ca3Cd3I18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ca  1.0000  1.8000  1.1400
  Cd  1.6900  1.5500  1.0900
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [8.6355]
_cell_length_b [8.6355]
_cell_length_c [20.6347]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Rb2CaCdI6]
_chemical_formula_sum '[Rb6 Ca3 Cd3 I18]'
_cell_volume [1332.6202]
_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  0.0556  1.0
  Rb  Rb1  3  0.0000  0.0000  0.5525  1.0
  Ca  Ca2  3  0.0000  0.0000  0.8174  1.0
  Cd  Cd3  3  0.0000  0.0000  0.3172  1.0
  I  I4  9  0.0105  0.5796  0.0691  1.0
  I  I5  9  0.0946  0.3382  0.9039  1.0
]