The crystal structure described by Ni3Hg is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ni(1) is bonded to eight equivalent Ni(1) and four equivalent Hg(1) atoms to form NiNi8Hg4 cuboctahedra that share corners with twelve equivalent Ni(1)Ni8Hg4 cuboctahedra, edges with eight equivalent Hg(1)Ni12 cuboctahedra, edges with sixteen equivalent Ni(1)Ni8Hg4 cuboctahedra, faces with four equivalent Hg(1)Ni12 cuboctahedra, and faces with fourteen equivalent Ni(1)Ni8Hg4 cuboctahedra. Hg(1) is bonded to twelve equivalent Ni(1) atoms to form HgNi12 cuboctahedra that share corners with twelve equivalent Hg(1)Ni12 cuboctahedra, edges with twenty-four equivalent Ni(1)Ni8Hg4 cuboctahedra, faces with six equivalent Hg(1)Ni12 cuboctahedra, and faces with twelve equivalent Ni(1)Ni8Hg4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ni3Hg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.745
_cell_length_b   3.745
_cell_length_c   3.745
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   52.520
_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
  Ni  Ni0  1  0.000  0.500  0.500  1.0
  Ni  Ni1  1  0.500  0.000  0.500  1.0
  Ni  Ni2  1  0.500  0.500  0.000  1.0
  Hg  Hg3  1  0.000  0.000  0.000  1.0
[/CIF]
.
The crystal structure described by Ni3Hg is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ni(1) is bonded to eight equivalent Ni(1) and four equivalent Hg(1) atoms to form NiNi8Hg4 cuboctahedra that share corners with twelve equivalent Ni(1)Ni8Hg4 cuboctahedra, edges with eight equivalent Hg(1)Ni12 cuboctahedra, edges with sixteen equivalent Ni(1)Ni8Hg4 cuboctahedra, faces with four equivalent Hg(1)Ni12 cuboctahedra, and faces with fourteen equivalent Ni(1)Ni8Hg4 cuboctahedra. Hg(1) is bonded to twelve equivalent Ni(1) atoms to form HgNi12 cuboctahedra that share corners with twelve equivalent Hg(1)Ni12 cuboctahedra, edges with twenty-four equivalent Ni(1)Ni8Hg4 cuboctahedra, faces with six equivalent Hg(1)Ni12 cuboctahedra, and faces with twelve equivalent Ni(1)Ni8Hg4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ni3Hg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.745
_cell_length_b   3.745
_cell_length_c   3.745
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   52.520
_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
  Ni  Ni0  1  0.000  0.500  0.500  1.0
  Ni  Ni1  1  0.500  0.000  0.500  1.0
  Ni  Ni2  1  0.500  0.500  0.000  1.0
  Hg  Hg3  1  0.000  0.000  0.000  1.0
[/CIF]
.