data_[Nd8Sm4Hg10]
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
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Pbam]
_cell_length_a [8.5360]
_cell_length_b [20.1697]
_cell_length_c [3.6659]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [55]
_chemical_formula_structural [Nd4Sm2Hg5]
_chemical_formula_sum '[Nd8 Sm4 Hg10]'
_cell_volume [631.1505]
_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  0.1020  0.3704  0.5000  1
  Nd  Nd1  4  0.2075  0.0525  0.5000  1
  Sm  Sm2  4  0.0122  0.7947  0.5000  1
  Hg  Hg3  4  0.1073  0.9246  0.0000  1
  Hg  Hg4  4  0.2018  0.6928  0.0000  1
  Hg  Hg5  2  0.0000  0.5000  0.0000  1
]