data_Ta2VW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.22
_cell_length_b   3.22
_cell_length_c   6.39
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2VW
_chemical_formula_sum   'Ta2 V1 W1'
_cell_volume   66.18
_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
  Ta  Ta0  1  0.61  0.61  0.82  1.0
  Ta  Ta1  1  0.61  0.61  0.57  1.0
  V  V2  1  0.0  0.0  0.0  1.0
  W  W3  1  0.0  0.0  0.2  1.0

data_Ta2VW
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.55
_cell_length_b   4.55
_cell_length_c   6.39
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ta2VW
_chemical_formula_sum   'Ta4 V2 W2'
_cell_volume   132.35
_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
  Ta  Ta0  2  0.11  0.5  0.57  1.0
  Ta  Ta1  2  0.11  0.5  0.82  1.0
  V  V2  2  0.0  0.0  0.0  1.0
  W  W3  2  0.0  0.0  0.2  1.0

Ta Ta V W
Ta Ta V W 0 1 o o o 2 3 o o o 
Ta2VW crystallizes in the monoclinic Cm space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 5-coordinate geometry to one Ta(2) and four equivalent V(1) atoms. The Ta(1)-Ta(2) bond length is 1.55 Å. There are a spread of Ta(1)-V(1) bond distances ranging from 2.13-3.00 Å. In the second Ta site, Ta(2) is bonded in a 2-coordinate geometry to one Ta(1) and one W(1) atom. The Ta(2)-W(1) bond length is 3.00 Å. V(1) is bonded in a distorted single-bond geometry to four equivalent Ta(1) and one W(1) atom. The V(1)-W(1) bond length is 1.26 Å. W(1) is bonded in a single-bond geometry to one Ta(2) and one V(1) atom.