The crystal structure described by AuCu2Zn crystallizes in the trigonal R3m space group. Au(1) is bonded to six equivalent Au(1), three equivalent Cu(2), and three equivalent Zn(1) atoms to form distorted AuZn3Cu3Au6 cuboctahedra that share corners with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, corners with six equivalent Cu(1)Zn3Cu9 cuboctahedra, corners with six equivalent Zn(1)Cu3Au3 cuboctahedra, edges with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, edges with six equivalent Cu(2)Cu9Au3 cuboctahedra, edges with six equivalent Cu(1)Zn3Cu9 cuboctahedra, edges with six equivalent Zn(1)Cu3Au3 cuboctahedra, faces with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, and faces with six equivalent Cu(2)Cu9Au3 cuboctahedra. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to three equivalent Cu(2), six equivalent Cu(1), and three equivalent Zn(1) atoms to form distorted CuZn3Cu9 cuboctahedra that share corners with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, corners with six equivalent Cu(1)Zn3Cu9 cuboctahedra, corners with six equivalent Zn(1)Cu3Au3 cuboctahedra, edges with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, edges with six equivalent Cu(2)Cu9Au3 cuboctahedra, edges with six equivalent Cu(1)Zn3Cu9 cuboctahedra, edges with six equivalent Zn(1)Cu3Au3 cuboctahedra, faces with six equivalent Cu(2)Cu9Au3 cuboctahedra, and faces with six equivalent Cu(1)Zn3Cu9 cuboctahedra. In the second Cu site, Cu(2) is bonded to three equivalent Au(1), three equivalent Cu(1), and six equivalent Cu(2) atoms to form distorted CuCu9Au3 cuboctahedra that share corners with six equivalent Cu(2)Cu9Au3 cuboctahedra, corners with six equivalent Zn(1)Cu3Au3 cuboctahedra, edges with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, edges with six equivalent Cu(2)Cu9Au3 cuboctahedra, edges with six equivalent Cu(1)Zn3Cu9 cuboctahedra, edges with six equivalent Zn(1)Cu3Au3 cuboctahedra, faces with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, faces with six equivalent Cu(2)Cu9Au3 cuboctahedra, and faces with six equivalent Cu(1)Zn3Cu9 cuboctahedra. Zn(1) is bonded to three equivalent Au(1) and three equivalent Cu(1) atoms to form distorted ZnCu3Au3 cuboctahedra that share corners with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, corners with six equivalent Cu(2)Cu9Au3 cuboctahedra, corners with six equivalent Cu(1)Zn3Cu9 cuboctahedra, edges with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, edges with six equivalent Cu(2)Cu9Au3 cuboctahedra, edges with six equivalent Cu(1)Zn3Cu9 cuboctahedra, and edges with six equivalent Zn(1)Cu3Au3 cuboctahedra. is represented by the CIF file [CIF]
data_ZnCu2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.797
_cell_length_b   2.797
_cell_length_c   8.665
_cell_angle_alpha   80.712
_cell_angle_beta   99.288
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   57.671
_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
  Zn  Zn0  1  0.756  0.244  0.268  1.0
  Cu  Cu1  1  0.501  0.499  0.504  1.0
  Cu  Cu2  1  0.244  0.756  0.732  1.0
  Au  Au3  1  0.999  0.001  0.996  1.0
[/CIF]
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The crystal structure described by AuCu2Zn crystallizes in the trigonal R3m space group. Au(1) is bonded to six equivalent Au(1), three equivalent Cu(2), and three equivalent Zn(1) atoms to form distorted AuZn3Cu3Au6 cuboctahedra that share corners with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, corners with six equivalent Cu(1)Zn3Cu9 cuboctahedra, corners with six equivalent Zn(1)Cu3Au3 cuboctahedra, edges with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, edges with six equivalent Cu(2)Cu9Au3 cuboctahedra, edges with six equivalent Cu(1)Zn3Cu9 cuboctahedra, edges with six equivalent Zn(1)Cu3Au3 cuboctahedra, faces with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, and faces with six equivalent Cu(2)Cu9Au3 cuboctahedra. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to three equivalent Cu(2), six equivalent Cu(1), and three equivalent Zn(1) atoms to form distorted CuZn3Cu9 cuboctahedra that share corners with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, corners with six equivalent Cu(1)Zn3Cu9 cuboctahedra, corners with six equivalent Zn(1)Cu3Au3 cuboctahedra, edges with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, edges with six equivalent Cu(2)Cu9Au3 cuboctahedra, edges with six equivalent Cu(1)Zn3Cu9 cuboctahedra, edges with six equivalent Zn(1)Cu3Au3 cuboctahedra, faces with six equivalent Cu(2)Cu9Au3 cuboctahedra, and faces with six equivalent Cu(1)Zn3Cu9 cuboctahedra. In the second Cu site, Cu(2) is bonded to three equivalent Au(1), three equivalent Cu(1), and six equivalent Cu(2) atoms to form distorted CuCu9Au3 cuboctahedra that share corners with six equivalent Cu(2)Cu9Au3 cuboctahedra, corners with six equivalent Zn(1)Cu3Au3 cuboctahedra, edges with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, edges with six equivalent Cu(2)Cu9Au3 cuboctahedra, edges with six equivalent Cu(1)Zn3Cu9 cuboctahedra, edges with six equivalent Zn(1)Cu3Au3 cuboctahedra, faces with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, faces with six equivalent Cu(2)Cu9Au3 cuboctahedra, and faces with six equivalent Cu(1)Zn3Cu9 cuboctahedra. Zn(1) is bonded to three equivalent Au(1) and three equivalent Cu(1) atoms to form distorted ZnCu3Au3 cuboctahedra that share corners with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, corners with six equivalent Cu(2)Cu9Au3 cuboctahedra, corners with six equivalent Cu(1)Zn3Cu9 cuboctahedra, edges with six equivalent Au(1)Zn3Cu3Au6 cuboctahedra, edges with six equivalent Cu(2)Cu9Au3 cuboctahedra, edges with six equivalent Cu(1)Zn3Cu9 cuboctahedra, and edges with six equivalent Zn(1)Cu3Au3 cuboctahedra. is represented by the CIF file [CIF]
data_ZnCu2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.797
_cell_length_b   2.797
_cell_length_c   8.665
_cell_angle_alpha   80.712
_cell_angle_beta   99.288
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   57.671
_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
  Zn  Zn0  1  0.756  0.244  0.268  1.0
  Cu  Cu1  1  0.501  0.499  0.504  1.0
  Cu  Cu2  1  0.244  0.756  0.732  1.0
  Au  Au3  1  0.999  0.001  0.996  1.0
[/CIF]
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