data_[Mg4Fe2Os2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Fe  1.8300  1.4000  0.8525
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [3.0973]
_cell_length_b [4.5380]
_cell_length_c [9.0298]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Mg2FeOs]
_chemical_formula_sum '[Mg4 Fe2 Os2]'
_cell_volume [126.9173]
_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
[
  Mg  Mg0  2  0.0000  0.0000  0.9856  1
  Mg  Mg1  2  0.0000  0.5000  0.7630  1
  Fe  Fe2  2  0.0000  0.5000  0.2279  1
  Os  Os3  2  0.0000  0.0000  0.5235  1
]