The material described by Hg3Ga crystallizes in the hexagonal P6_3/mmc space group. Hg(1) is bonded in a 12-coordinate geometry to eight equivalent Hg(1) and four equivalent Ga(1) atoms. Ga(1) is bonded to twelve equivalent Hg(1) atoms to form a mixture of distorted corner and face-sharing GaHg12 cuboctahedra. is represented by the CIF file [CIF]
data_GaHg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.645
_cell_length_b   6.645
_cell_length_c   5.300
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   202.633
_cell_formula_units_Z   2
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
  Ga  Ga0  1  0.333  0.667  0.750  1.0
  Ga  Ga1  1  0.667  0.333  0.250  1.0
  Hg  Hg2  1  0.169  0.338  0.250  1.0
  Hg  Hg3  1  0.662  0.831  0.250  1.0
  Hg  Hg4  1  0.169  0.831  0.250  1.0
  Hg  Hg5  1  0.831  0.662  0.750  1.0
  Hg  Hg6  1  0.338  0.169  0.750  1.0
  Hg  Hg7  1  0.831  0.169  0.750  1.0
[/CIF]
.
The material described by Hg3Ga crystallizes in the hexagonal P6_3/mmc space group. Hg(1) is bonded in a 12-coordinate geometry to eight equivalent Hg(1) and four equivalent Ga(1) atoms. Ga(1) is bonded to twelve equivalent Hg(1) atoms to form a mixture of distorted corner and face-sharing GaHg12 cuboctahedra. is represented by the CIF file [CIF]
data_GaHg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.645
_cell_length_b   6.645
_cell_length_c   5.300
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   202.633
_cell_formula_units_Z   2
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
  Ga  Ga0  1  0.333  0.667  0.750  1.0
  Ga  Ga1  1  0.667  0.333  0.250  1.0
  Hg  Hg2  1  0.169  0.338  0.250  1.0
  Hg  Hg3  1  0.662  0.831  0.250  1.0
  Hg  Hg4  1  0.169  0.831  0.250  1.0
  Hg  Hg5  1  0.831  0.662  0.750  1.0
  Hg  Hg6  1  0.338  0.169  0.750  1.0
  Hg  Hg7  1  0.831  0.169  0.750  1.0
[/CIF]
.