data_[Pm6Si8Os4]
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
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.0338]
_cell_length_b [4.2273]
_cell_length_c [8.1615]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.5247]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm3(Si2Os)2]
_chemical_formula_sum '[Pm6 Si8 Os4]'
_cell_volume [360.9515]
_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  0.1109  0.5000  0.6987  1
  Pm  Pm1  2  0.0000  0.0000  0.0000  1
  Si  Si2  4  0.1076  0.0000  0.4077  1
  Si  Si3  4  0.2211  0.5000  0.0806  1
  Os  Os4  4  0.1884  0.5000  0.3572  1
]