data_ZrTcW2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.4
_cell_length_b   9.4
_cell_length_c   9.4
_cell_angle_alpha   18.02
_cell_angle_beta   18.02
_cell_angle_gamma   18.02
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZrTcW2
_chemical_formula_sum   'Zr1 Tc1 W2'
_cell_volume   69.35
_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
  Zr  Zr3  1  0.0  0.0  0.0  1.0
  Tc  Tc0  1  0.0  0.0  0.86  1.0
  W  W1  1  0.0  0.0  0.73  1.0
  W  W2  1  0.0  0.0  0.99  1.0

data_ZrTcW2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.1
_cell_length_b   2.94
_cell_length_c   9.4
_cell_angle_alpha   90.0
_cell_angle_beta   100.42
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ZrTcW2
_chemical_formula_sum   'Zr2 Tc2 W4'
_cell_volume   138.69
_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
  Zr  Zr0  2  0.0  0.0  0.0  1.0
  Tc  Tc1  2  0.0  0.0  0.14  1.0
  W  W2  2  0.0  0.0  0.01  1.0
  W  W3  2  0.0  0.0  0.27  1.0

Zr Tc W W
Zr Tc W W 0 3 o o - 0 1 o o - 1 2 o o o 1 3 o o o 
ZrW2Tc is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two ZrW2Tc clusters. Zr(1) is bonded in a single-bond geometry to one W(2) atom. The Zr(1)-W(2) bond length is 0.06 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded in a single-bond geometry to one Tc(1) atom. The W(1)-Tc(1) bond length is 1.22 Å. In the second W site, W(2) is bonded in a distorted single-bond geometry to one Zr(1) and one Tc(1) atom. The W(2)-Tc(1) bond length is 1.22 Å. Tc(1) is bonded in a linear geometry to one W(1) and one W(2) atom.