data_[Rb4Ca2Pm2I12]
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
  Pm  1.1300  1.8500  1.1100
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [8.7738]
_cell_length_b [12.4677]
_cell_length_c [8.8318]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [Rb2CaPmI6]
_chemical_formula_sum '[Rb4 Ca2 Pm2 I12]'
_cell_volume [966.1023]
_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  0.2856  0.7796  1
  Ca  Ca1  2  0.0000  0.5000  0.2611  1
  Pm  Pm2  2  0.0000  0.0000  0.2418  1
  I  I3  4  0.0000  0.2510  0.2396  1
  I  I4  4  0.2409  0.5000  0.5166  1
  I  I5  4  0.2492  0.5000  0.0105  1
]