The structure described by MgAg5 crystallizes in the hexagonal P-62m space group. Mg(1) is bonded to six equivalent Ag(1) and six equivalent Ag(2) atoms to form MgAg12 cuboctahedra that share corners with eighteen equivalent Ag(1)Mg3Ag9 cuboctahedra, edges with six equivalent Mg(1)Ag12 cuboctahedra, edges with twelve equivalent Ag(2)Mg2Ag10 cuboctahedra, faces with two equivalent Mg(1)Ag12 cuboctahedra, faces with six equivalent Ag(1)Mg3Ag9 cuboctahedra, and faces with twelve equivalent Ag(2)Mg2Ag10 cuboctahedra. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to three equivalent Mg(1), three equivalent Ag(1), and six equivalent Ag(2) atoms to form distorted AgMg3Ag9 cuboctahedra that share corners with nine equivalent Mg(1)Ag12 cuboctahedra, corners with nine equivalent Ag(1)Mg3Ag9 cuboctahedra, edges with six equivalent Ag(1)Mg3Ag9 cuboctahedra, edges with twelve equivalent Ag(2)Mg2Ag10 cuboctahedra, faces with three equivalent Mg(1)Ag12 cuboctahedra, faces with five equivalent Ag(1)Mg3Ag9 cuboctahedra, and faces with twelve equivalent Ag(2)Mg2Ag10 cuboctahedra. In the second Ag site, Ag(2) is bonded to two equivalent Mg(1), four equivalent Ag(1), and six equivalent Ag(2) atoms to form distorted AgMg2Ag10 cuboctahedra that share corners with eighteen equivalent Ag(2)Mg2Ag10 cuboctahedra, edges with four equivalent Mg(1)Ag12 cuboctahedra, edges with six equivalent Ag(2)Mg2Ag10 cuboctahedra, edges with eight equivalent Ag(1)Mg3Ag9 cuboctahedra, faces with four equivalent Mg(1)Ag12 cuboctahedra, faces with eight equivalent Ag(2)Mg2Ag10 cuboctahedra, and faces with eight equivalent Ag(1)Mg3Ag9 cuboctahedra. is represented by the CIF card [CIF]
data_MgAg5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.772
_cell_length_b   5.031
_cell_length_c   5.031
_cell_angle_alpha   60.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   104.601
_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  0.667  0.333  1.0
  Ag  Ag1  1  0.500  0.333  0.000  1.0
  Ag  Ag2  1  0.000  0.000  1.000  1.0
  Ag  Ag3  1  0.000  0.333  0.333  1.0
  Ag  Ag4  1  0.000  0.667  0.667  1.0
  Ag  Ag5  1  0.500  1.000  0.667  1.0
[/CIF]
.
The structure described by MgAg5 crystallizes in the hexagonal P-62m space group. Mg(1) is bonded to six equivalent Ag(1) and six equivalent Ag(2) atoms to form MgAg12 cuboctahedra that share corners with eighteen equivalent Ag(1)Mg3Ag9 cuboctahedra, edges with six equivalent Mg(1)Ag12 cuboctahedra, edges with twelve equivalent Ag(2)Mg2Ag10 cuboctahedra, faces with two equivalent Mg(1)Ag12 cuboctahedra, faces with six equivalent Ag(1)Mg3Ag9 cuboctahedra, and faces with twelve equivalent Ag(2)Mg2Ag10 cuboctahedra. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to three equivalent Mg(1), three equivalent Ag(1), and six equivalent Ag(2) atoms to form distorted AgMg3Ag9 cuboctahedra that share corners with nine equivalent Mg(1)Ag12 cuboctahedra, corners with nine equivalent Ag(1)Mg3Ag9 cuboctahedra, edges with six equivalent Ag(1)Mg3Ag9 cuboctahedra, edges with twelve equivalent Ag(2)Mg2Ag10 cuboctahedra, faces with three equivalent Mg(1)Ag12 cuboctahedra, faces with five equivalent Ag(1)Mg3Ag9 cuboctahedra, and faces with twelve equivalent Ag(2)Mg2Ag10 cuboctahedra. In the second Ag site, Ag(2) is bonded to two equivalent Mg(1), four equivalent Ag(1), and six equivalent Ag(2) atoms to form distorted AgMg2Ag10 cuboctahedra that share corners with eighteen equivalent Ag(2)Mg2Ag10 cuboctahedra, edges with four equivalent Mg(1)Ag12 cuboctahedra, edges with six equivalent Ag(2)Mg2Ag10 cuboctahedra, edges with eight equivalent Ag(1)Mg3Ag9 cuboctahedra, faces with four equivalent Mg(1)Ag12 cuboctahedra, faces with eight equivalent Ag(2)Mg2Ag10 cuboctahedra, and faces with eight equivalent Ag(1)Mg3Ag9 cuboctahedra. is represented by the CIF card [CIF]
data_MgAg5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.772
_cell_length_b   5.031
_cell_length_c   5.031
_cell_angle_alpha   60.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   104.601
_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  0.667  0.333  1.0
  Ag  Ag1  1  0.500  0.333  0.000  1.0
  Ag  Ag2  1  0.000  0.000  1.000  1.0
  Ag  Ag3  1  0.000  0.333  0.333  1.0
  Ag  Ag4  1  0.000  0.667  0.667  1.0
  Ag  Ag5  1  0.500  1.000  0.667  1.0
[/CIF]
.