data_Hf2WC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.79
_cell_length_b   3.11
_cell_length_c   4.88
_cell_angle_alpha   90.0
_cell_angle_beta   117.82
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hf2WC
_chemical_formula_sum   'Hf2 W1 C1'
_cell_volume   64.33
_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  0.49  0.56  0.66  1.0
  Hf  Hf2  1  0.06  0.0  0.18  1.0
  W  W3  1  0.41  0.56  0.69  1.0
  C  C0  1  0.45  0.0  0.1  1.0

data_Hf2WC
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.11
_cell_length_b   4.79
_cell_length_c   4.88
_cell_angle_alpha   117.82
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hf2WC
_chemical_formula_sum   'Hf2 W1 C1'
_cell_volume   64.33
_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  0.94  0.82  1.0
  Hf  Hf1  1  0.44  0.51  0.34  1.0
  W  W2  1  0.44  0.59  0.31  1.0
  C  C3  1  0.0  0.55  0.9  1.0

Hf Hf W C
Hf Hf W C 0 2 o o o 0 3 o + + 1 3 o o o 2 3 o + + 2 3 o o + 
HfWHfC crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one HfC cluster and one HfW cluster. In the HfC cluster, Hf(2) is bonded in a 1-coordinate geometry to one C(1) atom. The Hf(2)-C(1) bond length is 2.05 Å. C(1) is bonded in a 1-coordinate geometry to one Hf(2) atom. In the HfW cluster, Hf(1) is bonded in a single-bond geometry to one W(1) atom. The Hf(1)-W(1) bond length is 0.50 Å. W(1) is bonded in a single-bond geometry to one Hf(1) atom.