data_HfCuW2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   2.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   116.13
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfCuW2
_chemical_formula_sum   'Hf1 Cu1 W2'
_cell_volume   66.39
_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
  Hf  Hf1  1  0.74  0.0  0.0  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  W  W2  1  0.37  0.8  0.37  1.0
  W  W3  1  0.37  0.2  0.37  1.0

data_HfCuW2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.75
_cell_length_b   5.19
_cell_length_c   5.19
_cell_angle_alpha   116.13
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfCuW2
_chemical_formula_sum   'Hf1 Cu1 W2'
_cell_volume   66.39
_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
  Hf  Hf0  1  0.0  0.74  0.0  1.0
  Cu  Cu1  1  0.0  0.0  0.0  1.0
  W  W2  1  0.37  0.37  0.8  1.0
  W  W3  1  0.37  0.37  0.2  1.0

Hf Cu W W
HfW2Cu crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one HfW2Cu cluster. Hf(1) is bonded in a 2-coordinate geometry to one W(1) and one Cu(1) atom. The Hf(1)-W(1) bond length is 2.02 Å. The Hf(1)-Cu(1) bond length is 1.33 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 1-coordinate geometry to one Hf(1) atom. In the second W site, W(2) is bonded in a 1-coordinate geometry to one Cu(1) atom. The W(2)-Cu(1) bond length is 2.02 Å. Cu(1) is bonded in a 1-coordinate geometry to one Hf(1) and one W(2) atom.