The compound described by Mg5Au crystallizes in the trigonal R32 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Au(1) atoms. In the second Mg site, Mg(2) is bonded in a distorted trigonal planar geometry to three equivalent Au(1) atoms. Au(1) is bonded to six equivalent Mg(1) and six equivalent Mg(2) atoms to form a mixture of edge and corner-sharing AuMg12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg5Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.839
_cell_length_b   5.839
_cell_length_c   5.839
_cell_angle_alpha   54.728
_cell_angle_beta   54.728
_cell_angle_gamma   54.728
_symmetry_Int_Tables_number   1
_cell_volume   123.476
_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
  Mg  Mg0  1  0.500  0.155  0.845  1.0
  Mg  Mg1  1  0.845  0.500  0.155  1.0
  Mg  Mg2  1  0.155  0.845  0.500  1.0
  Mg  Mg3  1  0.665  0.665  0.665  1.0
  Mg  Mg4  1  0.335  0.335  0.335  1.0
  Au  Au5  1  0.000  0.000  0.000  1.0
[/CIF]
.
The compound described by Mg5Au crystallizes in the trigonal R32 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Au(1) atoms. In the second Mg site, Mg(2) is bonded in a distorted trigonal planar geometry to three equivalent Au(1) atoms. Au(1) is bonded to six equivalent Mg(1) and six equivalent Mg(2) atoms to form a mixture of edge and corner-sharing AuMg12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg5Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.839
_cell_length_b   5.839
_cell_length_c   5.839
_cell_angle_alpha   54.728
_cell_angle_beta   54.728
_cell_angle_gamma   54.728
_symmetry_Int_Tables_number   1
_cell_volume   123.476
_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
  Mg  Mg0  1  0.500  0.155  0.845  1.0
  Mg  Mg1  1  0.845  0.500  0.155  1.0
  Mg  Mg2  1  0.155  0.845  0.500  1.0
  Mg  Mg3  1  0.665  0.665  0.665  1.0
  Mg  Mg4  1  0.335  0.335  0.335  1.0
  Au  Au5  1  0.000  0.000  0.000  1.0
[/CIF]
.