data_[Sm2Gd2Al2Ni4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Gd  1.2000  1.8000  1.0750
  Al  1.6100  1.2500  0.6750
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [4.2193]
_cell_length_b [5.4339]
_cell_length_c [8.3977]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [SmGdAlNi2]
_chemical_formula_sum '[Sm2 Gd2 Al2 Ni4]'
_cell_volume [192.5355]
_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
[
  Sm  Sm0  2  0.0000  0.5000  0.7957  1
  Gd  Gd1  2  0.0000  0.5000  0.2043  1
  Al  Al2  2  0.0000  0.0000  0.0000  1
  Ni  Ni3  4  0.0000  0.2334  0.5000  1
]