data_[Pm12Si2Ge10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Si  1.9000  1.1000  0.5400
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.4274]
_cell_length_b [12.7123]
_cell_length_c [7.3426]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.2273]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm6SiGe5]
_chemical_formula_sum '[Pm12 Si2 Ge10]'
_cell_volume [654.6138]
_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  0.2481  0.1655  0.2482  1
  Pm  Pm1  4  0.2478  0.0000  0.7512  1
  Si  Si2  2  0.0000  0.0000  0.0000  1
  Ge  Ge3  4  0.0000  0.1680  0.5000  1
  Ge  Ge4  4  0.0000  0.3336  0.0000  1
  Ge  Ge5  2  0.0000  0.5000  0.5000  1
]