data_[Al4Ru2Se2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Al  1.6100  1.2500  0.6750
  Ru  2.2000  1.3000  0.6610
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [5.6458]
_cell_length_b [7.1954]
_cell_length_c [3.0606]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Al2RuSe]
_chemical_formula_sum '[Al4 Ru2 Se2]'
_cell_volume [124.3341]
_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  4  0.2500  0.2500  0.0000  1
  Ru  Ru1  2  0.0000  0.0000  0.5000  1
  Se  Se2  2  0.0000  0.5000  0.5000  1
]