The material described by Ag3Cd is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to four equivalent Ag(1), four equivalent Ag(2), and four equivalent Cd(1) atoms to form AgCd4Ag8 cuboctahedra that share corners with twelve equivalent Ag(1)Cd4Ag8 cuboctahedra, edges with eight equivalent Ag(1)Cd4Ag8 cuboctahedra, edges with eight equivalent Ag(2)Cd4Ag8 cuboctahedra, edges with eight equivalent Cd(1)Ag12 cuboctahedra, faces with four equivalent Ag(2)Cd4Ag8 cuboctahedra, faces with four equivalent Cd(1)Ag12 cuboctahedra, and faces with ten equivalent Ag(1)Cd4Ag8 cuboctahedra. In the second Ag site, Ag(2) is bonded to eight equivalent Ag(1) and four equivalent Cd(1) atoms to form AgCd4Ag8 cuboctahedra that share corners with four equivalent Ag(2)Cd4Ag8 cuboctahedra, corners with eight equivalent Cd(1)Ag12 cuboctahedra, edges with eight equivalent Ag(2)Cd4Ag8 cuboctahedra, edges with sixteen equivalent Ag(1)Cd4Ag8 cuboctahedra, faces with four equivalent Ag(2)Cd4Ag8 cuboctahedra, faces with six equivalent Cd(1)Ag12 cuboctahedra, and faces with eight equivalent Ag(1)Cd4Ag8 cuboctahedra. Cd(1) is bonded to four equivalent Ag(2) and eight equivalent Ag(1) atoms to form CdAg12 cuboctahedra that share corners with four equivalent Cd(1)Ag12 cuboctahedra, corners with eight equivalent Ag(2)Cd4Ag8 cuboctahedra, edges with eight equivalent Cd(1)Ag12 cuboctahedra, edges with sixteen equivalent Ag(1)Cd4Ag8 cuboctahedra, faces with four equivalent Cd(1)Ag12 cuboctahedra, faces with six equivalent Ag(2)Cd4Ag8 cuboctahedra, and faces with eight equivalent Ag(1)Cd4Ag8 cuboctahedra. is represented by the CIF file [CIF]
data_CdAg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.104
_cell_length_b   5.104
_cell_length_c   5.104
_cell_angle_alpha   131.978
_cell_angle_beta   131.978
_cell_angle_gamma   70.264
_symmetry_Int_Tables_number   1
_cell_volume   72.015
_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  0.750  0.250  0.500  1.0
  Ag  Ag2  1  0.250  0.750  0.500  1.0
  Ag  Ag3  1  0.500  0.500  0.000  1.0
[/CIF]
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The material described by Ag3Cd is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to four equivalent Ag(1), four equivalent Ag(2), and four equivalent Cd(1) atoms to form AgCd4Ag8 cuboctahedra that share corners with twelve equivalent Ag(1)Cd4Ag8 cuboctahedra, edges with eight equivalent Ag(1)Cd4Ag8 cuboctahedra, edges with eight equivalent Ag(2)Cd4Ag8 cuboctahedra, edges with eight equivalent Cd(1)Ag12 cuboctahedra, faces with four equivalent Ag(2)Cd4Ag8 cuboctahedra, faces with four equivalent Cd(1)Ag12 cuboctahedra, and faces with ten equivalent Ag(1)Cd4Ag8 cuboctahedra. In the second Ag site, Ag(2) is bonded to eight equivalent Ag(1) and four equivalent Cd(1) atoms to form AgCd4Ag8 cuboctahedra that share corners with four equivalent Ag(2)Cd4Ag8 cuboctahedra, corners with eight equivalent Cd(1)Ag12 cuboctahedra, edges with eight equivalent Ag(2)Cd4Ag8 cuboctahedra, edges with sixteen equivalent Ag(1)Cd4Ag8 cuboctahedra, faces with four equivalent Ag(2)Cd4Ag8 cuboctahedra, faces with six equivalent Cd(1)Ag12 cuboctahedra, and faces with eight equivalent Ag(1)Cd4Ag8 cuboctahedra. Cd(1) is bonded to four equivalent Ag(2) and eight equivalent Ag(1) atoms to form CdAg12 cuboctahedra that share corners with four equivalent Cd(1)Ag12 cuboctahedra, corners with eight equivalent Ag(2)Cd4Ag8 cuboctahedra, edges with eight equivalent Cd(1)Ag12 cuboctahedra, edges with sixteen equivalent Ag(1)Cd4Ag8 cuboctahedra, faces with four equivalent Cd(1)Ag12 cuboctahedra, faces with six equivalent Ag(2)Cd4Ag8 cuboctahedra, and faces with eight equivalent Ag(1)Cd4Ag8 cuboctahedra. is represented by the CIF file [CIF]
data_CdAg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.104
_cell_length_b   5.104
_cell_length_c   5.104
_cell_angle_alpha   131.978
_cell_angle_beta   131.978
_cell_angle_gamma   70.264
_symmetry_Int_Tables_number   1
_cell_volume   72.015
_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  0.750  0.250  0.500  1.0
  Ag  Ag2  1  0.250  0.750  0.500  1.0
  Ag  Ag3  1  0.500  0.500  0.000  1.0
[/CIF]
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