data_[Rb6Pm4F16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Pm  1.1300  1.8500  1.1100
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.5310]
_cell_length_b [8.0117]
_cell_length_c [4.5883]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.2762]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb3Pm2F8]
_chemical_formula_sum '[Rb6 Pm4 F16]'
_cell_volume [487.7981]
_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  0.2944  0.0000  1
  Rb  Rb1  2  0.0000  0.0000  0.5000  1
  Pm  Pm2  4  0.2330  0.5000  0.5902  1
  F  F3  8  0.1605  0.2300  0.5537  1
  F  F4  4  0.1200  0.0000  0.0780  1
  F  F5  4  0.1793  0.5000  0.0619  1
]