The material structure described by Ac3Hg crystallizes in the hexagonal P6_3/mmc space group. Ac(1) is bonded in a 4-coordinate geometry to four equivalent Hg(1) atoms. Hg(1) is bonded to twelve equivalent Ac(1) atoms to form a mixture of corner and face-sharing HgAc12 cuboctahedra. is represented by the CIF card [CIF]
data_Ac3Hg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.705
_cell_length_b   7.705
_cell_length_c   5.913
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   303.981
_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
  Ac  Ac0  1  0.176  0.352  0.250  1.0
  Ac  Ac1  1  0.648  0.824  0.250  1.0
  Ac  Ac2  1  0.176  0.824  0.250  1.0
  Ac  Ac3  1  0.824  0.648  0.750  1.0
  Ac  Ac4  1  0.352  0.176  0.750  1.0
  Ac  Ac5  1  0.824  0.176  0.750  1.0
  Hg  Hg6  1  0.333  0.667  0.750  1.0
  Hg  Hg7  1  0.667  0.333  0.250  1.0
[/CIF]
.
The material structure described by Ac3Hg crystallizes in the hexagonal P6_3/mmc space group. Ac(1) is bonded in a 4-coordinate geometry to four equivalent Hg(1) atoms. Hg(1) is bonded to twelve equivalent Ac(1) atoms to form a mixture of corner and face-sharing HgAc12 cuboctahedra. is represented by the CIF card [CIF]
data_Ac3Hg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.705
_cell_length_b   7.705
_cell_length_c   5.913
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   303.981
_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
  Ac  Ac0  1  0.176  0.352  0.250  1.0
  Ac  Ac1  1  0.648  0.824  0.250  1.0
  Ac  Ac2  1  0.176  0.824  0.250  1.0
  Ac  Ac3  1  0.824  0.648  0.750  1.0
  Ac  Ac4  1  0.352  0.176  0.750  1.0
  Ac  Ac5  1  0.824  0.176  0.750  1.0
  Hg  Hg6  1  0.333  0.667  0.750  1.0
  Hg  Hg7  1  0.667  0.333  0.250  1.0
[/CIF]
.