data_[Tm8Si8Ir4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tm  1.2500  1.7500  1.0950
  Si  1.9000  1.1000  0.5400
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.4485]
_cell_length_b [4.1846]
_cell_length_c [9.8964]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.7402]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tm2Si2Ir]
_chemical_formula_sum '[Tm8 Si8 Ir4]'
_cell_volume [379.3967]
_cell_formula_units_Z [4]
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
[
  Tm  Tm0  4  0.0054  0.0000  0.6775  1.0
  Tm  Tm1  4  0.1840  0.0000  0.1087  1.0
  Si  Si2  4  0.0135  0.5000  0.8783  1.0
  Si  Si3  4  0.1394  0.5000  0.5653  1.0
  Ir  Ir4  4  0.2265  0.5000  0.3710  1.0
]