data_Co2NiW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.62
_cell_length_b   2.62
_cell_length_c   7.14
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Co2NiW
_chemical_formula_sum   'Co2 Ni1 W1'
_cell_volume   48.94
_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  0.16  1.0
  Co  Co1  1  0.31  0.31  0.74  1.0
  Ni  Ni2  1  0.0  0.0  0.45  1.0
  W  W3  1  0.31  0.31  0.36  1.0

data_Co2NiW
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.7
_cell_length_b   3.7
_cell_length_c   7.14
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Co2NiW
_chemical_formula_sum   'Co4 Ni2 W2'
_cell_volume   97.87
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.16  1.0
  Co  Co1  2  0.31  0.0  0.74  1.0
  Ni  Ni2  2  0.0  0.0  0.45  1.0
  W  W3  2  0.31  0.0  0.36  1.0

Co Co Ni W
WCo2Ni crystallizes in the monoclinic Cm space group. W(1) is bonded in a distorted single-bond geometry to one Co(1), one Co(2), and one Ni(1) atom. The W(1)-Co(1) bond length is 1.84 Å. The W(1)-Co(2) bond length is 2.68 Å. The W(1)-Ni(1) bond length is 1.30 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted single-bond geometry to one W(1) and one Co(2) atom. The Co(1)-Co(2) bond length is 3.23 Å. In the second Co site, Co(2) is bonded in a 9-coordinate geometry to one W(1), one Co(1), four equivalent Co(2), and three equivalent Ni(1) atoms. All Co(2)-Co(2) bond lengths are 2.62 Å. There is one shorter (2.35 Å) and two longer (2.85 Å) Co(2)-Ni(1) bond lengths. Ni(1) is bonded in a distorted single-bond geometry to one W(1) and three equivalent Co(2) atoms.