The material described by Cr4Ni crystallizes in the orthorhombic Fmmm space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 2-coordinate geometry to two equivalent Cr(2) and two equivalent Ni(1) atoms. In the second Cr site, Cr(2) is bonded in a distorted body-centered cubic geometry to two equivalent Cr(1) and six equivalent Cr(2) atoms. Ni(1) is bonded in a 4-coordinate geometry to four equivalent Cr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cr4Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.238
_cell_length_b   10.152
_cell_length_c   2.437
_cell_angle_alpha   85.135
_cell_angle_beta   81.146
_cell_angle_gamma   13.719
_symmetry_Int_Tables_number   1
_cell_volume   57.040
_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  0.401  0.401  0.599  1.0
  Cr  Cr1  1  0.801  0.801  0.199  1.0
  Cr  Cr2  1  0.199  0.199  0.801  1.0
  Cr  Cr3  1  0.599  0.599  0.401  1.0
  Ni  Ni4  1  0.000  0.000  0.000  1.0
[/CIF]
.
The material described by Cr4Ni crystallizes in the orthorhombic Fmmm space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 2-coordinate geometry to two equivalent Cr(2) and two equivalent Ni(1) atoms. In the second Cr site, Cr(2) is bonded in a distorted body-centered cubic geometry to two equivalent Cr(1) and six equivalent Cr(2) atoms. Ni(1) is bonded in a 4-coordinate geometry to four equivalent Cr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cr4Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.238
_cell_length_b   10.152
_cell_length_c   2.437
_cell_angle_alpha   85.135
_cell_angle_beta   81.146
_cell_angle_gamma   13.719
_symmetry_Int_Tables_number   1
_cell_volume   57.040
_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  0.401  0.401  0.599  1.0
  Cr  Cr1  1  0.801  0.801  0.199  1.0
  Cr  Cr2  1  0.199  0.199  0.801  1.0
  Cr  Cr3  1  0.599  0.599  0.401  1.0
  Ni  Ni4  1  0.000  0.000  0.000  1.0
[/CIF]
.