data_[Na6La2Pm4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  La  1.1000  1.9500  1.1720
  Pm  1.1300  1.8500  1.1100
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.3452]
_cell_length_b [3.5926]
_cell_length_c [6.9874]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.8377]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3LaPm2O6]
_chemical_formula_sum '[Na6 La2 Pm4 O12]'
_cell_volume [378.3387]
_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  0.1700  0.0000  0.8356  1
  Na  Na1  2  0.0000  0.5000  0.5000  1
  La  La2  2  0.0000  0.5000  0.0000  1
  Pm  Pm3  4  0.1674  0.0000  0.3374  1
  O  O4  4  0.0097  0.0000  0.2370  1
  O  O5  4  0.1612  0.5000  0.1086  1
  O  O6  4  0.1752  0.5000  0.5660  1
]