data_TaV3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.36
_cell_length_b   4.36
_cell_length_c   3.11
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaV3
_chemical_formula_sum   'Ta1 V3'
_cell_volume   58.96
_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  0.18  0.18  0.0  1.0
  V  V1  1  0.0  0.0  0.0  1.0
  V  V2  1  0.18  0.0  0.55  1.0
  V  V3  1  0.0  0.18  0.55  1.0

data_TaV3
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.16
_cell_length_b   6.16
_cell_length_c   3.11
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TaV3
_chemical_formula_sum   'Ta2 V6'
_cell_volume   117.92
_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  0.18  0.0  0.0  1.0
  V  V1  4  0.09  0.09  0.55  1.0
  V  V2  2  0.0  0.0  0.0  1.0

Ta V V V
Ta V V V 0 1 o o o 2 3 o o o 
TaV(V)2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two vanadium molecules and two TaV clusters. In each TaV cluster, Ta(1) is bonded in a single-bond geometry to one V(1) atom. The Ta(1)-V(1) bond length is 1.09 Å. V(1) is bonded in a single-bond geometry to one Ta(1) atom.