The compound described by Ag3Cd crystallizes in the trigonal R-3m space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to three equivalent Ag(2), six equivalent Ag(1), and three equivalent Cd(1) atoms to form AgCd3Ag9 cuboctahedra that share corners with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra, edges with six equivalent Ag(2)Ag12 cuboctahedra, edges with six equivalent Cd(1)Cd6Ag6 cuboctahedra, edges with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra, faces with six equivalent Ag(2)Ag12 cuboctahedra, faces with six equivalent Ag(1)Cd3Ag9 cuboctahedra, and faces with six equivalent Cd(1)Cd6Ag6 cuboctahedra. In the second Ag site, Ag(2) is bonded to six equivalent Ag(1) and six equivalent Ag(2) atoms to form AgAg12 cuboctahedra that share corners with six equivalent Ag(2)Ag12 cuboctahedra, corners with six equivalent Cd(1)Cd6Ag6 cuboctahedra, edges with six equivalent Ag(2)Ag12 cuboctahedra, edges with six equivalent Cd(1)Cd6Ag6 cuboctahedra, edges with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra, faces with six equivalent Ag(2)Ag12 cuboctahedra, and faces with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra. Cd(1) is bonded to six equivalent Ag(1) and six equivalent Cd(1) atoms to form CdCd6Ag6 cuboctahedra that share corners with six equivalent Ag(2)Ag12 cuboctahedra, corners with six equivalent Cd(1)Cd6Ag6 cuboctahedra, edges with six equivalent Ag(2)Ag12 cuboctahedra, edges with six equivalent Cd(1)Cd6Ag6 cuboctahedra, edges with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra, faces with six equivalent Cd(1)Cd6Ag6 cuboctahedra, and faces with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra. is represented by the CIF file [CIF]
data_CdAg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.648
_cell_length_b   9.648
_cell_length_c   9.648
_cell_angle_alpha   17.695
_cell_angle_beta   17.695
_cell_angle_gamma   17.695
_symmetry_Int_Tables_number   1
_cell_volume   72.429
_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
  Cd  Cd0  1  0.000  0.000  0.000  1.0
  Ag  Ag1  1  0.248  0.248  0.248  1.0
  Ag  Ag2  1  0.500  0.500  0.500  1.0
  Ag  Ag3  1  0.752  0.752  0.752  1.0
[/CIF]
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The compound described by Ag3Cd crystallizes in the trigonal R-3m space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to three equivalent Ag(2), six equivalent Ag(1), and three equivalent Cd(1) atoms to form AgCd3Ag9 cuboctahedra that share corners with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra, edges with six equivalent Ag(2)Ag12 cuboctahedra, edges with six equivalent Cd(1)Cd6Ag6 cuboctahedra, edges with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra, faces with six equivalent Ag(2)Ag12 cuboctahedra, faces with six equivalent Ag(1)Cd3Ag9 cuboctahedra, and faces with six equivalent Cd(1)Cd6Ag6 cuboctahedra. In the second Ag site, Ag(2) is bonded to six equivalent Ag(1) and six equivalent Ag(2) atoms to form AgAg12 cuboctahedra that share corners with six equivalent Ag(2)Ag12 cuboctahedra, corners with six equivalent Cd(1)Cd6Ag6 cuboctahedra, edges with six equivalent Ag(2)Ag12 cuboctahedra, edges with six equivalent Cd(1)Cd6Ag6 cuboctahedra, edges with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra, faces with six equivalent Ag(2)Ag12 cuboctahedra, and faces with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra. Cd(1) is bonded to six equivalent Ag(1) and six equivalent Cd(1) atoms to form CdCd6Ag6 cuboctahedra that share corners with six equivalent Ag(2)Ag12 cuboctahedra, corners with six equivalent Cd(1)Cd6Ag6 cuboctahedra, edges with six equivalent Ag(2)Ag12 cuboctahedra, edges with six equivalent Cd(1)Cd6Ag6 cuboctahedra, edges with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra, faces with six equivalent Cd(1)Cd6Ag6 cuboctahedra, and faces with twelve equivalent Ag(1)Cd3Ag9 cuboctahedra. is represented by the CIF file [CIF]
data_CdAg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.648
_cell_length_b   9.648
_cell_length_c   9.648
_cell_angle_alpha   17.695
_cell_angle_beta   17.695
_cell_angle_gamma   17.695
_symmetry_Int_Tables_number   1
_cell_volume   72.429
_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
  Cd  Cd0  1  0.000  0.000  0.000  1.0
  Ag  Ag1  1  0.248  0.248  0.248  1.0
  Ag  Ag2  1  0.500  0.500  0.500  1.0
  Ag  Ag3  1  0.752  0.752  0.752  1.0
[/CIF]
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