data_[Na8Pm2F14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  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 [19.0600]
_cell_length_b [4.3867]
_cell_length_c [5.5639]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.5627]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na4PmF7]
_chemical_formula_sum '[Na8 Pm2 F14]'
_cell_volume [455.7584]
_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
[
  Na  Na0  4  0.1144  0.5000  0.5297  1
  Na  Na1  4  0.1861  0.0000  0.9823  1
  Pm  Pm2  2  0.0000  0.0000  0.0000  1
  F  F3  4  0.0700  0.0000  0.7168  1
  F  F4  4  0.1089  0.0000  0.2613  1
  F  F5  4  0.1963  0.5000  0.8601  1
  F  F6  2  0.0000  0.5000  0.0000  1
]