data_[Y3Cd21Hg36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Cd  1.6900  1.5500  1.0900
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [13.1729]
_cell_length_b [13.1729]
_cell_length_c [10.4271]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [YCd7Hg12]
_chemical_formula_sum '[Y3 Cd21 Hg36]'
_cell_volume [1566.9431]
_cell_formula_units_Z [3]
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
[
  Y  Y0  3  0.0000  0.0000  0.0000  1
  Cd  Cd1  18  0.0113  0.1479  0.7477  1
  Cd  Cd2  3  0.0000  0.0000  0.5000  1
  Hg  Hg3  18  0.0480  0.2539  0.4276  1
  Hg  Hg4  18  0.0560  0.7966  0.9638  1
]