data_[Zn4Si2Hg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Zn  1.6500  1.3500  0.8800
  Si  1.9000  1.1000  0.5400
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.3301]
_cell_length_b [2.8792]
_cell_length_c [11.8644]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Zn2SiHg]
_chemical_formula_sum '[Zn4 Si2 Hg2]'
_cell_volume [147.9158]
_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
[
  Zn  Zn0  2  0.0000  0.0000  0.8313  1
  Zn  Zn1  2  0.5000  0.0000  0.3999  1
  Si  Si2  2  0.5000  0.0000  0.7058  1
  Hg  Hg3  2  0.0000  0.0000  0.5589  1
]