data_[Pm8Co8Sn16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Co  1.8800  1.3500  0.7683
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.5047]
_cell_length_b [9.4334]
_cell_length_c [16.9390]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [PmCoSn2]
_chemical_formula_sum '[Pm8 Co8 Sn16]'
_cell_volume [719.8202]
_cell_formula_units_Z [8]
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  0.0000  0.2904  1
  Pm  Pm1  4  0.0000  0.2332  0.5000  1
  Co  Co2  8  0.0000  0.2514  0.1463  1
  Sn  Sn3  8  0.0000  0.3341  0.3035  1
  Sn  Sn4  4  0.0000  0.0000  0.0862  1
  Sn  Sn5  4  0.0000  0.5000  0.0831  1
]