data_NbWC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.14
_cell_length_b   3.14
_cell_length_c   4.41
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NbWC2
_chemical_formula_sum   'Nb1 W1 C2'
_cell_volume   43.53
_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  Nb2  1  0.0  0.0  0.21  1.0
  W  W3  1  0.57  0.57  0.0  1.0
  C  C0  1  0.0  0.0  0.0  1.0
  C  C1  1  0.57  0.57  0.21  1.0

data_NbWC2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.44
_cell_length_b   4.44
_cell_length_c   4.41
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NbWC2
_chemical_formula_sum   'Nb2 W2 C4'
_cell_volume   87.06
_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
  Nb  Nb0  2  0.0  0.0  0.21  1.0
  W  W1  2  0.07  0.5  0.0  1.0
  C  C2  2  0.0  0.0  0.0  1.0
  C  C3  2  0.07  0.5  0.21  1.0

Nb W C C
NbCWC1 is Tetraauricupride structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two mfcd00016237 molecules and two tungsten, methylidyne- molecules.