data_[Cs3Na2Pm1I9]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Na  0.9300  1.8000  1.1600
  Pm  1.1300  1.8500  1.1100
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P-3m1]
_cell_length_a [8.6980]
_cell_length_b [8.6980]
_cell_length_c [11.1361]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [Cs3Na2PmI9]
_chemical_formula_sum '[Cs3 Na2 Pm1 I9]'
_cell_volume [729.6268]
_cell_formula_units_Z [1]
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
[
  Cs  Cs0  2  0.3333  0.6667  0.6804  1
  Cs  Cs1  1  0.0000  0.0000  0.0000  1
  Na  Na2  2  0.3333  0.6667  0.1650  1
  Pm  Pm3  1  0.0000  0.0000  0.5000  1
  I  I4  6  0.1662  0.3323  0.3385  1
  I  I5  3  0.0000  0.5000  0.0000  1
]