data_[Pm16Sn2C4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sn  1.9600  1.4500  0.8300
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.5639]
_cell_length_b [13.3779]
_cell_length_c [5.0878]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.2909]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm8SnC2]
_chemical_formula_sum '[Pm16 Sn2 C4]'
_cell_volume [575.2479]
_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
[
  Pm  Pm0  8  0.2222  0.1359  0.0718  1
  Pm  Pm1  4  0.0000  0.2584  0.5000  1
  Pm  Pm2  4  0.1112  0.5000  0.3024  1
  Sn  Sn3  2  0.0000  0.0000  0.5000  1
  C  C4  4  0.0000  0.3225  0.0000  1
]