data_[Ba4Mg2Al2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Mg  1.3100  1.5000  0.8600
  Al  1.6100  1.2500  0.6750
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [3.9319]
_cell_length_b [6.0379]
_cell_length_c [12.4679]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Ba2MgAl]
_chemical_formula_sum '[Ba4 Mg2 Al2]'
_cell_volume [295.9952]
_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
[
  Ba  Ba0  2  0.0000  0.0000  0.7689  1.0
  Ba  Ba1  2  0.0000  0.5000  0.9621  1.0
  Mg  Mg2  2  0.0000  0.5000  0.5489  1.0
  Al  Al3  2  0.0000  0.0000  0.2200  1.0
]