data_[Er2Si4Os2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Si  1.9000  1.1000  0.5400
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [4.4228]
_cell_length_b [4.0487]
_cell_length_c [8.1131]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.5835]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [ErSi2Os]
_chemical_formula_sum '[Er2 Si4 Os2]'
_cell_volume [142.3214]
_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
[
  Er  Er0  2  0.0832  0.2500  0.2019  1.0
  Si  Si1  2  0.1616  0.7500  0.4920  1.0
  Si  Si2  2  0.4666  0.2500  0.9116  1.0
  Os  Os3  2  0.3849  0.2500  0.6167  1.0
]