data_NbNiW2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.84
_cell_length_b   4.84
_cell_length_c   5.03
_cell_angle_alpha   98.8
_cell_angle_beta   98.8
_cell_angle_gamma   32.42
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NbNiW2
_chemical_formula_sum   'Nb1 Ni1 W2'
_cell_volume   62.2
_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
  Nb  Nb0  1  0.12  0.0  0.38  1.0
  Ni  Ni1  1  0.73  0.0  0.25  1.0
  W  W2  1  0.15  0.0  0.03  1.0
  W  W3  1  0.73  0.0  0.78  1.0

data_NbNiW2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.7
_cell_length_b   4.84
_cell_length_c   5.03
_cell_angle_alpha   98.8
_cell_angle_beta   90.0
_cell_angle_gamma   106.21
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NbNiW2
_chemical_formula_sum   'Nb1 Ni1 W2'
_cell_volume   62.2
_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
  Nb  Nb0  1  0.0  0.88  0.62  1.0
  Ni  Ni1  1  0.0  0.27  0.75  1.0
  W  W2  1  0.0  0.27  0.22  1.0
  W  W3  1  0.0  0.85  0.97  1.0

Nb Ni W W
NbW2Ni crystallizes in the triclinic P1 space group. Nb(1) is bonded in a distorted L-shaped geometry to one W(1), two equivalent W(2), and one Ni(1) atom. The Nb(1)-W(1) bond length is 1.80 Å. There is one shorter (2.93 Å) and one longer (3.28 Å) Nb(1)-W(2) bond length. The Nb(1)-Ni(1) bond length is 1.94 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded in a single-bond geometry to one Nb(1) and one W(2) atom. The W(1)-W(2) bond length is 2.21 Å. In the second W site, W(2) is bonded in a 7-coordinate geometry to two equivalent Nb(1), one W(1), two equivalent W(2), and two equivalent Ni(1) atoms. Both W(2)-W(2) bond lengths are 2.70 Å. There is one shorter (2.41 Å) and one longer (2.62 Å) W(2)-Ni(1) bond length. Ni(1) is bonded in a 1-coordinate geometry to one Nb(1) and two equivalent W(2) atoms.