data_[Pm14Sn4C4]
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 [Imm2]
_cell_length_a [3.5885]
_cell_length_b [15.0833]
_cell_length_c [10.7789]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Pm7(SnC)2]
_chemical_formula_sum '[Pm14 Sn4 C4]'
_cell_volume [583.4233]
_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  4  0.0000  0.1580  0.2285  1
  Pm  Pm1  4  0.0000  0.1900  0.9188  1
  Pm  Pm2  4  0.0000  0.3624  0.0984  1
  Pm  Pm3  2  0.0000  0.5000  0.5446  1
  Sn  Sn4  2  0.0000  0.0000  0.7808  1
  Sn  Sn5  2  0.0000  0.5000  0.8609  1
  C  C6  4  0.0000  0.2651  0.5880  1
]