data_ZnCdHgBi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   5.19
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnCdHgBi
_chemical_formula_sum   'Zn1 Cd1 Hg1 Bi1'
_cell_volume   98.77
_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
  Cd  Cd1  1  0.83  0.83  0.83  1.0
  Hg  Hg2  1  0.67  0.67  0.67  1.0
  Bi  Bi0  1  0.5  0.5  0.5  1.0

data_ZnCdHgBi
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   12.71
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   ZnCdHgBi
_chemical_formula_sum   'Zn3 Cd3 Hg3 Bi3'
_cell_volume   296.3
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.0  1.0
  Cd  Cd1  3  0.0  0.0  0.17  1.0
  Hg  Hg2  3  0.0  0.0  0.33  1.0
  Bi  Bi3  3  0.0  0.0  0.5  1.0

Zn Cd Hg Bi
HgCdZnBi crystallizes in the trigonal R3m space group. Hg(1) is bonded to one Cd(1), three equivalent Zn(1), and one Bi(1) atom to form distorted HgZn3CdBi trigonal bipyramids that share corners with six equivalent Hg(1)Zn3CdBi trigonal bipyramids,  a cornercorner with one Zn(1)CdHg3 trigonal pyramid, corners with three equivalent Bi(1)Cd3Hg trigonal pyramids, and edges with three equivalent Cd(1)ZnHgBi3 trigonal bipyramids. The Hg(1)-Cd(1) bond length is 2.10 Å. All Hg(1)-Zn(1) bond lengths are 3.00 Å. The Hg(1)-Bi(1) bond length is 2.10 Å. Cd(1) is bonded to one Hg(1), one Zn(1), and three equivalent Bi(1) atoms to form distorted CdZnHgBi3 trigonal bipyramids that share corners with six equivalent Cd(1)ZnHgBi3 trigonal bipyramids,  a cornercorner with one Bi(1)Cd3Hg trigonal pyramid, corners with three equivalent Zn(1)CdHg3 trigonal pyramids, and edges with three equivalent Hg(1)Zn3CdBi trigonal bipyramids. The Cd(1)-Zn(1) bond length is 2.10 Å. All Cd(1)-Bi(1) bond lengths are 3.00 Å. Zn(1) is bonded to three equivalent Hg(1) and one Cd(1) atom to form ZnCdHg3 trigonal pyramids that share  a cornercorner with one Hg(1)Zn3CdBi trigonal bipyramid, corners with three equivalent Cd(1)ZnHgBi3 trigonal bipyramids, corners with six equivalent Zn(1)CdHg3 trigonal pyramids, and edges with three equivalent Bi(1)Cd3Hg trigonal pyramids. Bi(1) is bonded to one Hg(1) and three equivalent Cd(1) atoms to form BiCd3Hg trigonal pyramids that share  a cornercorner with one Cd(1)ZnHgBi3 trigonal bipyramid, corners with three equivalent Hg(1)Zn3CdBi trigonal bipyramids, corners with six equivalent Bi(1)Cd3Hg trigonal pyramids, and edges with three equivalent Zn(1)CdHg3 trigonal pyramids.