data_[Al4Os2Se2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Al  1.6100  1.2500  0.6750
  Os  2.2000  1.3000  0.6730
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.2360]
_cell_length_b [3.2967]
_cell_length_c [9.2088]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Al2OsSe]
_chemical_formula_sum '[Al4 Os2 Se2]'
_cell_volume [128.5994]
_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
[
  Al  Al0  2  0.0000  0.0000  0.0240  1
  Al  Al1  2  0.5000  0.0000  0.7237  1
  Os  Os2  2  0.0000  0.0000  0.2957  1
  Se  Se3  2  0.5000  0.0000  0.4559  1
]