data_[Ac6Sm4Mg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Sm  1.1700  1.8500  1.2290
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [5.4978]
_cell_length_b [24.8125]
_cell_length_c [3.7477]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Ac3(SmMg)2]
_chemical_formula_sum '[Ac6 Sm4 Mg4]'
_cell_volume [511.2300]
_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
[
  Ac  Ac0  4  0.0000  0.1494  0.0000  1
  Ac  Ac1  2  0.0000  0.0000  0.0000  1
  Sm  Sm2  4  0.0000  0.2857  0.5000  1
  Mg  Mg3  4  0.0000  0.4292  0.5000  1
]