data_Zn2CuHg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.94
_cell_length_b   3.96
_cell_length_c   4.11
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zn2CuHg
_chemical_formula_sum   'Zn2 Cu1 Hg1'
_cell_volume   64.34
_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
  Zn  Zn2  1  0.97  0.98  0.0  1.0
  Zn  Zn3  1  0.0  0.98  0.06  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Hg  Hg1  1  0.97  0.0  0.06  1.0

data_Zn2CuHg
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.94
_cell_length_b   3.96
_cell_length_c   4.11
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zn2CuHg
_chemical_formula_sum   'Zn2 Cu1 Hg1'
_cell_volume   64.34
_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
  Zn  Zn0  1  0.0  0.98  0.06  1.0
  Zn  Zn1  1  0.97  0.98  0.0  1.0
  Cu  Cu2  1  0.0  0.0  0.0  1.0
  Hg  Hg3  1  0.97  0.0  0.06  1.0

Zn Zn Cu Hg
CuHgZn2 is alpha Po structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one CuHgZn2 cluster. Cu(1) is bonded in a distorted single-bond geometry to one Zn(1) atom. The Cu(1)-Zn(1) bond length is 0.13 Å. Hg(1) is bonded in a distorted single-bond geometry to one Zn(1) and one Zn(2) atom. The Hg(1)-Zn(1) bond length is 0.24 Å. The Hg(1)-Zn(2) bond length is 0.13 Å. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 2-coordinate geometry to one Cu(1) and one Hg(1) atom. In the second Zn site, Zn(2) is bonded in a distorted single-bond geometry to one Hg(1) atom.