The material described by NiCr crystallizes in the trigonal R-3m space group. Cr(1) is bonded to six equivalent Cr(1) and six equivalent Ni(1) atoms to form CrCr6Ni6 cuboctahedra that share corners with twelve equivalent Cr(1)Cr6Ni6 cuboctahedra, edges with twelve equivalent Cr(1)Cr6Ni6 cuboctahedra, edges with twelve equivalent Ni(1)Cr6Ni6 cuboctahedra, faces with six equivalent Cr(1)Cr6Ni6 cuboctahedra, and faces with twelve equivalent Ni(1)Cr6Ni6 cuboctahedra. Ni(1) is bonded to six equivalent Cr(1) and six equivalent Ni(1) atoms to form NiCr6Ni6 cuboctahedra that share corners with twelve equivalent Ni(1)Cr6Ni6 cuboctahedra, edges with twelve equivalent Cr(1)Cr6Ni6 cuboctahedra, edges with twelve equivalent Ni(1)Cr6Ni6 cuboctahedra, faces with six equivalent Ni(1)Cr6Ni6 cuboctahedra, and faces with twelve equivalent Cr(1)Cr6Ni6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CrNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.390
_cell_length_b   4.390
_cell_length_c   4.390
_cell_angle_alpha   32.939
_cell_angle_beta   32.939
_cell_angle_gamma   32.939
_symmetry_Int_Tables_number   1
_cell_volume   22.253
_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
  Cr  Cr0  1  0.000  0.000  0.000  1.0
  Ni  Ni1  1  0.500  0.500  0.500  1.0
[/CIF]
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The material described by NiCr crystallizes in the trigonal R-3m space group. Cr(1) is bonded to six equivalent Cr(1) and six equivalent Ni(1) atoms to form CrCr6Ni6 cuboctahedra that share corners with twelve equivalent Cr(1)Cr6Ni6 cuboctahedra, edges with twelve equivalent Cr(1)Cr6Ni6 cuboctahedra, edges with twelve equivalent Ni(1)Cr6Ni6 cuboctahedra, faces with six equivalent Cr(1)Cr6Ni6 cuboctahedra, and faces with twelve equivalent Ni(1)Cr6Ni6 cuboctahedra. Ni(1) is bonded to six equivalent Cr(1) and six equivalent Ni(1) atoms to form NiCr6Ni6 cuboctahedra that share corners with twelve equivalent Ni(1)Cr6Ni6 cuboctahedra, edges with twelve equivalent Cr(1)Cr6Ni6 cuboctahedra, edges with twelve equivalent Ni(1)Cr6Ni6 cuboctahedra, faces with six equivalent Ni(1)Cr6Ni6 cuboctahedra, and faces with twelve equivalent Cr(1)Cr6Ni6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CrNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.390
_cell_length_b   4.390
_cell_length_c   4.390
_cell_angle_alpha   32.939
_cell_angle_beta   32.939
_cell_angle_gamma   32.939
_symmetry_Int_Tables_number   1
_cell_volume   22.253
_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
  Cr  Cr0  1  0.000  0.000  0.000  1.0
  Ni  Ni1  1  0.500  0.500  0.500  1.0
[/CIF]
.