data_[K6Rb3Cr3I18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Cr  1.6600  1.4000  0.9400
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [8.5992]
_cell_length_b [8.5992]
_cell_length_c [21.7746]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [K2RbCrI6]
_chemical_formula_sum '[K6 Rb3 Cr3 I18]'
_cell_volume [1394.4355]
_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  0.1833  1.0
  K  K1  3  0.0000  0.0000  0.4655  1.0
  K  K2  3  0.0000  0.0000  0.9792  1.0
  Cr  Cr3  3  0.0000  0.0000  0.6739  1.0
  I  I4  9  0.0354  0.2828  0.7466  1.0
  I  I5  9  0.0847  0.6885  0.2655  1.0
]