data_CoNi2Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.58
_cell_length_b   2.58
_cell_length_c   7.04
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   92.32
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoNi2Rh
_chemical_formula_sum   'Co1 Ni2 Rh1'
_cell_volume   46.79
_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
  Co  Co0  1  0.0  0.0  0.0  1.0
  Ni  Ni1  1  0.79  0.0  0.67  1.0
  Ni  Ni2  1  0.79  0.0  0.37  1.0
  Rh  Rh3  1  0.0  0.0  0.52  1.0

data_CoNi2Rh
_symmetry_space_group_name_H-M   Pm
_cell_length_a   2.58
_cell_length_b   2.58
_cell_length_c   7.04
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   CoNi2Rh
_chemical_formula_sum   'Co1 Ni2 Rh1'
_cell_volume   46.83
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  Co  Co0  1  0.0  0.0  0.0  1.0
  Ni  Ni1  1  0.79  0.0  0.37  1.0
  Ni  Ni2  1  0.79  0.0  0.67  1.0
  Rh  Rh3  1  0.0  0.0  0.52  1.0

Co Ni Ni Rh
RhCoNi2 crystallizes in the monoclinic Pm space group. Rh(1) is bonded in a bent 120 degrees geometry to one Ni(1) and one Ni(2) atom. The Rh(1)-Ni(1) bond length is 1.20 Å. The Rh(1)-Ni(2) bond length is 1.20 Å. Co(1) is bonded to four equivalent Co(1), one Ni(1), and one Ni(2) atom to form a mixture of distorted edge and corner-sharing CoCo4Ni2 octahedra. The corner-sharing octahedra are not tilted. All Co(1)-Co(1) bond lengths are 2.58 Å. The Co(1)-Ni(1) bond length is 2.38 Å. The Co(1)-Ni(2) bond length is 2.64 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a single-bond geometry to one Rh(1) and one Co(1) atom. In the second Ni site, Ni(2) is bonded in a single-bond geometry to one Rh(1) and one Co(1) atom.