data_ZnHgW2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.58
_cell_length_b   4.58
_cell_length_c   4.58
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnHgW2
_chemical_formula_sum   'Zn1 Hg1 W2'
_cell_volume   67.88
_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
  Hg  Hg0  1  0.62  0.62  0.62  1.0
  W  W1  1  0.86  0.86  0.86  1.0
  W  W2  1  0.24  0.24  0.24  1.0

data_ZnHgW2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.58
_cell_length_b   4.58
_cell_length_c   11.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   ZnHgW2
_chemical_formula_sum   'Zn3 Hg3 W6'
_cell_volume   203.65
_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
  Hg  Hg1  3  0.0  0.0  0.38  1.0
  W  W2  3  0.0  0.0  0.14  1.0
  W  W3  3  0.0  0.0  0.76  1.0

Zn Hg W W
Zn Hg W W 0 2 - - - 0 1 o - - 0 1 - o - 0 1 - - o 0 3 o o o 0 3 o o - 0 3 - o o 0 3 o - o 1 2 o - o 1 2 - o o 1 2 o o - 1 2 o o o 1 3 o o + 1 3 o + o 1 3 + o o 2 3 + + o 2 3 + o + 2 3 o + + 
W2HgZn is Heusler structured and crystallizes in the trigonal R3m space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a single-bond geometry to three equivalent W(2), four equivalent Hg(1), and one Zn(1) atom. All W(1)-W(2) bond lengths are 2.70 Å. There is one shorter (2.67 Å) and three longer (2.85 Å) W(1)-Hg(1) bond lengths. The W(1)-Zn(1) bond length is 1.61 Å. In the second W site, W(2) is bonded in a 10-coordinate geometry to three equivalent W(1), three equivalent Hg(1), and four equivalent Zn(1) atoms. All W(2)-Hg(1) bond lengths are 2.70 Å. There is one shorter (2.67 Å) and three longer (2.85 Å) W(2)-Zn(1) bond lengths. Hg(1) is bonded in a 10-coordinate geometry to three equivalent W(2), four equivalent W(1), and three equivalent Zn(1) atoms. All Hg(1)-Zn(1) bond lengths are 2.70 Å. Zn(1) is bonded in a distorted single-bond geometry to one W(1), four equivalent W(2), and three equivalent Hg(1) atoms.