data_ZnAg2Hg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.7
_cell_length_b   4.7
_cell_length_c   3.33
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnAg2Hg
_chemical_formula_sum   'Zn1 Ag2 Hg1'
_cell_volume   73.63
_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  Zn3  1  0.0  0.0  0.0  1.0
  Ag  Ag0  1  0.0  0.35  0.67  1.0
  Ag  Ag1  1  0.35  0.0  0.67  1.0
  Hg  Hg2  1  0.35  0.35  0.0  1.0

data_ZnAg2Hg
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.65
_cell_length_b   6.65
_cell_length_c   3.33
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ZnAg2Hg
_chemical_formula_sum   'Zn2 Ag4 Hg2'
_cell_volume   147.25
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  0.0  0.0  0.0  1.0
  Ag  Ag1  4  0.18  0.18  0.67  1.0
  Hg  Hg2  2  0.35  0.0  0.0  1.0

Zn Ag Ag Hg
Ag2HgZn crystallizes in the monoclinic Cm space group. Ag(1) is bonded in a 2-coordinate geometry to three equivalent Hg(1) and one Zn(1) atom. There are a spread of Ag(1)-Hg(1) bond distances ranging from 1.99-3.25 Å. The Ag(1)-Zn(1) bond length is 1.99 Å. Hg(1) is bonded in a 7-coordinate geometry to six equivalent Ag(1) and one Zn(1) atom. The Hg(1)-Zn(1) bond length is 2.33 Å. Zn(1) is bonded in a 2-coordinate geometry to two equivalent Ag(1) and one Hg(1) atom.