data_[Tm2Si4Os8]
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
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [3.9797]
_cell_length_b [13.9871]
_cell_length_c [3.9621]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Tm(SiOs2)2]
_chemical_formula_sum '[Tm2 Si4 Os8]'
_cell_volume [220.5465]
_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
[
  Tm  Tm0  2  0.0000  0.0000  0.0000  1
  Si  Si1  4  0.0000  0.4166  0.5000  1
  Os  Os2  4  0.0000  0.1853  0.5000  1
  Os  Os3  4  0.0000  0.3117  0.0000  1
]