data_[Er8Os4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [7.4034]
_cell_length_b [4.3260]
_cell_length_c [8.8131]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [Er2Os]
_chemical_formula_sum '[Er8 Os4]'
_cell_volume [282.2611]
_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
[
  Er  Er0  4  0.0228  0.2500  0.1656  1.0
  Er  Er1  4  0.1469  0.2500  0.5671  1.0
  Os  Os2  4  0.2469  0.7500  0.3800  1.0
]