data_[Sm16Tm4Hg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Tm  1.2500  1.7500  1.0950
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.8706]
_cell_length_b [5.5403]
_cell_length_c [7.8250]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.3287]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sm8Tm2Hg]
_chemical_formula_sum '[Sm16 Tm4 Hg2]'
_cell_volume [716.6539]
_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  0.0090  0.0000  0.7521  1
  Sm  Sm1  4  0.1175  0.5000  0.4234  1
  Sm  Sm2  4  0.1577  0.5000  0.9080  1
  Sm  Sm3  4  0.1798  0.0000  0.2161  1
  Tm  Tm4  4  0.1907  0.0000  0.6629  1
  Hg  Hg5  2  0.0000  0.5000  0.0000  1
]