data_[Na2Pm4Sn6Te12]
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
  Sn  1.9600  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.9341]
_cell_length_b [4.4496]
_cell_length_c [9.2319]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.9773]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaPm2(SnTe2)3]
_chemical_formula_sum '[Na2 Pm4 Sn6 Te12]'
_cell_volume [791.0444]
_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  2  0.0000  0.5000  0.0000  1
  Pm  Pm1  4  0.1680  0.0000  0.3444  1
  Sn  Sn2  4  0.1580  0.0000  0.8478  1
  Sn  Sn3  2  0.0000  0.5000  0.5000  1
  Te  Te4  4  0.0047  0.0000  0.2560  1
  Te  Te5  4  0.1674  0.5000  0.5917  1
  Te  Te6  4  0.1746  0.5000  0.0982  1
]