data_[Y4Sn2Hg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Sn  1.9600  1.4500  0.8300
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.1133]
_cell_length_b [4.4151]
_cell_length_c [8.7043]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.5517]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Y2SnHg]
_chemical_formula_sum '[Y4 Sn2 Hg2]'
_cell_volume [221.3912]
_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
[
  Y  Y0  2  0.2084  0.2500  0.4294  1.0
  Y  Y1  2  0.2944  0.7500  0.0687  1.0
  Sn  Sn2  2  0.1218  0.2500  0.7925  1.0
  Hg  Hg3  2  0.3878  0.7500  0.7018  1.0
]