data_[Er4Si6Os2]
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 [Cm]
_cell_length_a [10.1186]
_cell_length_b [4.2191]
_cell_length_c [6.8459]
_cell_angle_alpha [90.0000]
_cell_angle_beta [130.3010]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [Er2Si3Os]
_chemical_formula_sum '[Er4 Si6 Os2]'
_cell_volume [222.8957]
_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  0.0485  0.5000  0.2852  1
  Er  Er1  2  0.4316  0.0000  0.6785  1
  Si  Si2  2  0.1799  0.0000  0.0989  1
  Si  Si3  2  0.3061  0.5000  0.8900  1
  Si  Si4  2  0.3716  0.5000  0.3257  1
  Os  Os5  2  0.1623  0.0000  0.7217  1
]