The structure described by Cu2NiZn is beta Cu3Ti-derived structured and crystallizes in the tetragonal P4/mmm space group. Ni(1) is bonded to eight equivalent Cu(1) and four equivalent Zn(1) atoms to form NiZn4Cu8 cuboctahedra that share corners with twelve equivalent Ni(1)Zn4Cu8 cuboctahedra, edges with eight equivalent Zn(1)Cu8Ni4 cuboctahedra, edges with sixteen equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra, faces with four equivalent Zn(1)Cu8Ni4 cuboctahedra, faces with six equivalent Ni(1)Zn4Cu8 cuboctahedra, and faces with eight equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra. Cu(1) is bonded to four equivalent Ni(1), four equivalent Cu(1), and four equivalent Zn(1) atoms to form CuZn4Cu4Ni4 cuboctahedra that share corners with twelve equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra, edges with eight equivalent Ni(1)Zn4Cu8 cuboctahedra, edges with eight equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra, edges with eight equivalent Zn(1)Cu8Ni4 cuboctahedra, faces with four equivalent Ni(1)Zn4Cu8 cuboctahedra, faces with four equivalent Zn(1)Cu8Ni4 cuboctahedra, and faces with ten equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra. Zn(1) is bonded to four equivalent Ni(1) and eight equivalent Cu(1) atoms to form ZnCu8Ni4 cuboctahedra that share corners with twelve equivalent Zn(1)Cu8Ni4 cuboctahedra, edges with eight equivalent Ni(1)Zn4Cu8 cuboctahedra, edges with sixteen equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra, faces with four equivalent Ni(1)Zn4Cu8 cuboctahedra, faces with six equivalent Zn(1)Cu8Ni4 cuboctahedra, and faces with eight equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_ZnCu2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.546
_cell_length_b   3.546
_cell_length_c   3.662
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   46.030
_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  0.500  0.500  0.000  1.0
  Cu  Cu1  1  0.000  0.500  0.500  1.0
  Cu  Cu2  1  0.500  0.000  0.500  1.0
  Ni  Ni3  1  0.000  0.000  0.000  1.0
[/CIF]
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The structure described by Cu2NiZn is beta Cu3Ti-derived structured and crystallizes in the tetragonal P4/mmm space group. Ni(1) is bonded to eight equivalent Cu(1) and four equivalent Zn(1) atoms to form NiZn4Cu8 cuboctahedra that share corners with twelve equivalent Ni(1)Zn4Cu8 cuboctahedra, edges with eight equivalent Zn(1)Cu8Ni4 cuboctahedra, edges with sixteen equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra, faces with four equivalent Zn(1)Cu8Ni4 cuboctahedra, faces with six equivalent Ni(1)Zn4Cu8 cuboctahedra, and faces with eight equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra. Cu(1) is bonded to four equivalent Ni(1), four equivalent Cu(1), and four equivalent Zn(1) atoms to form CuZn4Cu4Ni4 cuboctahedra that share corners with twelve equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra, edges with eight equivalent Ni(1)Zn4Cu8 cuboctahedra, edges with eight equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra, edges with eight equivalent Zn(1)Cu8Ni4 cuboctahedra, faces with four equivalent Ni(1)Zn4Cu8 cuboctahedra, faces with four equivalent Zn(1)Cu8Ni4 cuboctahedra, and faces with ten equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra. Zn(1) is bonded to four equivalent Ni(1) and eight equivalent Cu(1) atoms to form ZnCu8Ni4 cuboctahedra that share corners with twelve equivalent Zn(1)Cu8Ni4 cuboctahedra, edges with eight equivalent Ni(1)Zn4Cu8 cuboctahedra, edges with sixteen equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra, faces with four equivalent Ni(1)Zn4Cu8 cuboctahedra, faces with six equivalent Zn(1)Cu8Ni4 cuboctahedra, and faces with eight equivalent Cu(1)Zn4Cu4Ni4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_ZnCu2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.546
_cell_length_b   3.546
_cell_length_c   3.662
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   46.030
_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  0.500  0.500  0.000  1.0
  Cu  Cu1  1  0.000  0.500  0.500  1.0
  Cu  Cu2  1  0.500  0.000  0.500  1.0
  Ni  Ni3  1  0.000  0.000  0.000  1.0
[/CIF]
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