data_[Nd4Mg4Au4Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Mg  1.3100  1.5000  0.8600
  Au  2.5400  1.3500  1.0700
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.9196]
_cell_length_b [13.4005]
_cell_length_c [10.8508]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [NdMgAuSe3]
_chemical_formula_sum '[Nd4 Mg4 Au4 Se12]'
_cell_volume [569.9287]
_cell_formula_units_Z [4]
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
[
  Nd  Nd0  4  0.0000  0.5000  0.0000  1
  Mg  Mg1  4  0.0000  0.2757  0.7500  1
  Au  Au2  4  0.0000  0.0231  0.2500  1
  Se  Se3  8  0.0000  0.1561  0.0742  1
  Se  Se4  4  0.0000  0.3850  0.2500  1
]