data_[Sm20Co4Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Co  1.8800  1.3500  0.7683
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.9870]
_cell_length_b [7.2546]
_cell_length_c [11.6745]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.9271]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Sm5CoHg]
_chemical_formula_sum '[Sm20 Co4 Hg4]'
_cell_volume [804.7668]
_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  8  0.1161  0.3221  0.0549  1
  Sm  Sm1  8  0.2380  0.1751  0.6322  1
  Sm  Sm2  4  0.0000  0.0115  0.7500  1
  Co  Co3  4  0.0000  0.0000  0.0000  1
  Hg  Hg4  4  0.0000  0.4357  0.7500  1
]