data_[Pm6Zn8Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Zn  1.6500  1.3500  0.8800
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.1992]
_cell_length_b [4.5806]
_cell_length_c [8.7785]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.7589]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm3(Zn2Sn)2]
_chemical_formula_sum '[Pm6 Zn8 Sn4]'
_cell_volume [423.8187]
_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  0.1683  0.5000  0.6678  1
  Pm  Pm1  2  0.0000  0.0000  0.0000  1
  Zn  Zn2  4  0.0249  0.0000  0.3699  1
  Zn  Zn3  4  0.2442  0.5000  0.0627  1
  Sn  Sn4  4  0.1133  0.5000  0.2769  1
]