data_[Sm4Er8Sb6N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
  Sb  2.0500  1.4500  0.8300
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [4.6121]
_cell_length_b [4.6121]
_cell_length_c [25.2512]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Sm2Er4Sb3N2]
_chemical_formula_sum '[Sm4 Er8 Sb6 N4]'
_cell_volume [537.1277]
_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  4  0.0000  0.0000  0.3066  1
  Er  Er1  8  0.0000  0.5000  0.0829  1
  Sb  Sb2  4  0.0000  0.0000  0.1768  1
  Sb  Sb3  2  0.0000  0.0000  0.0000  1
  N  N4  4  0.0000  0.0000  0.4023  1
]