The material structure described by NiCu is Magnesium-derived structured and crystallizes in the hexagonal P-6m2 space group. Ni(1) is bonded to six equivalent Ni(1) and six equivalent Cu(1) atoms to form NiCu6Ni6 cuboctahedra that share corners with eighteen equivalent Ni(1)Cu6Ni6 cuboctahedra, edges with six equivalent Ni(1)Cu6Ni6 cuboctahedra, edges with twelve equivalent Cu(1)Cu6Ni6 cuboctahedra, faces with eight equivalent Ni(1)Cu6Ni6 cuboctahedra, and faces with twelve equivalent Cu(1)Cu6Ni6 cuboctahedra. Cu(1) is bonded to six equivalent Ni(1) and six equivalent Cu(1) atoms to form CuCu6Ni6 cuboctahedra that share corners with eighteen equivalent Cu(1)Cu6Ni6 cuboctahedra, edges with six equivalent Cu(1)Cu6Ni6 cuboctahedra, edges with twelve equivalent Ni(1)Cu6Ni6 cuboctahedra, faces with eight equivalent Cu(1)Cu6Ni6 cuboctahedra, and faces with twelve equivalent Ni(1)Cu6Ni6 cuboctahedra. is represented by the CIF file [CIF]
data_CuNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.472
_cell_length_b   2.472
_cell_length_c   4.100
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.998
_symmetry_Int_Tables_number   1
_cell_volume   21.690
_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
  Cu  Cu0  1  0.333  0.667  0.500  1.0
  Ni  Ni1  1  0.000  1.000  0.000  1.0
[/CIF]
.
The material structure described by NiCu is Magnesium-derived structured and crystallizes in the hexagonal P-6m2 space group. Ni(1) is bonded to six equivalent Ni(1) and six equivalent Cu(1) atoms to form NiCu6Ni6 cuboctahedra that share corners with eighteen equivalent Ni(1)Cu6Ni6 cuboctahedra, edges with six equivalent Ni(1)Cu6Ni6 cuboctahedra, edges with twelve equivalent Cu(1)Cu6Ni6 cuboctahedra, faces with eight equivalent Ni(1)Cu6Ni6 cuboctahedra, and faces with twelve equivalent Cu(1)Cu6Ni6 cuboctahedra. Cu(1) is bonded to six equivalent Ni(1) and six equivalent Cu(1) atoms to form CuCu6Ni6 cuboctahedra that share corners with eighteen equivalent Cu(1)Cu6Ni6 cuboctahedra, edges with six equivalent Cu(1)Cu6Ni6 cuboctahedra, edges with twelve equivalent Ni(1)Cu6Ni6 cuboctahedra, faces with eight equivalent Cu(1)Cu6Ni6 cuboctahedra, and faces with twelve equivalent Ni(1)Cu6Ni6 cuboctahedra. is represented by the CIF file [CIF]
data_CuNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.472
_cell_length_b   2.472
_cell_length_c   4.100
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.998
_symmetry_Int_Tables_number   1
_cell_volume   21.690
_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
  Cu  Cu0  1  0.333  0.667  0.500  1.0
  Ni  Ni1  1  0.000  1.000  0.000  1.0
[/CIF]
.