data_[Sn2Hg7Pb3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sn  1.9600  1.4500  0.8300
  Hg  2.0000  1.5000  1.2450
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [5.8183]
_cell_length_b [3.3806]
_cell_length_c [17.2108]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.9380]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Sn2Hg7Pb3]
_chemical_formula_sum '[Sn2 Hg7 Pb3]'
_cell_volume [336.0443]
_cell_formula_units_Z [1]
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
[
  Sn  Sn0  2  0.3650  0.5000  0.6936  1
  Hg  Hg1  2  0.2163  0.5000  0.1648  1
  Hg  Hg2  2  0.2585  0.5000  0.5191  1
  Hg  Hg3  2  0.2587  0.0000  0.8423  1
  Hg  Hg4  1  0.0000  0.0000  0.0000  1
  Pb  Pb5  2  0.1580  0.0000  0.3526  1
  Pb  Pb6  1  0.5000  0.5000  0.0000  1
]