data_[Sm4Y12Tm8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Y  1.2200  1.8000  1.0400
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [17.4078]
_cell_length_b [7.1056]
_cell_length_c [6.1508]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0604]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [SmY3Tm2]
_chemical_formula_sum '[Sm4 Y12 Tm8]'
_cell_volume [760.8151]
_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
[
  Sm  Sm0  4  0.0000  0.1255  0.2500  1
  Y  Y1  8  0.1678  0.1254  0.9158  1
  Y  Y2  4  0.0000  0.3760  0.7500  1
  Tm  Tm3  8  0.1674  0.3754  0.4171  1
]