data_[Nd4Sm4C4I10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Sm  1.1700  1.8500  1.2290
  C  2.5500  0.7000  0.3000
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [20.1281]
_cell_length_b [4.0472]
_cell_length_c [8.7632]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.7382]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Nd2Sm2C2I5]
_chemical_formula_sum '[Nd4 Sm4 C4 I10]'
_cell_volume [696.3001]
_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
[
  Nd  Nd0  4  0.0002  0.0000  0.3092  1
  Sm  Sm1  4  0.1499  0.5000  0.5795  1
  C  C2  4  0.0356  0.5000  0.5182  1
  I  I3  4  0.1622  0.0000  0.8538  1
  I  I4  4  0.1683  0.0000  0.3156  1
  I  I5  2  0.0000  0.5000  0.0000  1
]