data_FeCo2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.44
_cell_length_b   3.56
_cell_length_c   3.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeCo2Ni
_chemical_formula_sum   'Fe1 Co2 Ni1'
_cell_volume   44.16
_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
  Fe  Fe2  1  0.0  0.0  0.0  1.0
  Co  Co0  1  0.72  0.0  0.8  1.0
  Co  Co1  1  0.0  0.78  0.8  1.0
  Ni  Ni3  1  0.72  0.78  0.0  1.0

data_FeCo2Ni
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.44
_cell_length_b   3.56
_cell_length_c   3.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeCo2Ni
_chemical_formula_sum   'Fe1 Co2 Ni1'
_cell_volume   44.16
_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
  Fe  Fe0  1  0.0  0.0  0.0  1.0
  Co  Co1  1  0.0  0.78  0.8  1.0
  Co  Co2  1  0.72  0.0  0.8  1.0
  Ni  Ni3  1  0.72  0.78  0.0  1.0

Fe Co Co Ni
FeCo2Ni is alpha Po structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one FeCo2Ni cluster. Fe(1) is bonded in a 3-coordinate geometry to one Co(1), one Co(2), and one Ni(1) atom. The Fe(1)-Co(1) bond length is 1.20 Å. The Fe(1)-Co(2) bond length is 1.06 Å. The Fe(1)-Ni(1) bond length is 1.24 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 3-coordinate geometry to one Fe(1), one Co(2), and one Ni(1) atom. The Co(1)-Co(2) bond length is 1.24 Å. The Co(1)-Ni(1) bond length is 1.06 Å. In the second Co site, Co(2) is bonded in a 3-coordinate geometry to one Fe(1), one Co(1), and one Ni(1) atom. The Co(2)-Ni(1) bond length is 1.20 Å. Ni(1) is bonded in a 3-coordinate geometry to one Fe(1), one Co(1), and one Co(2) atom.