data_Na2TaV
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.12
_cell_length_b   3.35
_cell_length_c   8.66
_cell_angle_alpha   90.0
_cell_angle_beta   96.34
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2TaV
_chemical_formula_sum   'Na2 Ta1 V1'
_cell_volume   90.13
_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
  Na  Na0  1  0.23  0.68  0.26  1.0
  Na  Na1  1  0.15  0.0  0.39  1.0
  Ta  Ta2  1  0.54  0.68  0.84  1.0
  V  V3  1  0.95  0.0  0.02  1.0

data_Na2TaV
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.12
_cell_length_b   3.35
_cell_length_c   8.66
_cell_angle_alpha   90.0
_cell_angle_beta   96.34
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2TaV
_chemical_formula_sum   'Na2 Ta1 V1'
_cell_volume   90.13
_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
  Na  Na0  1  0.15  0.0  0.39  1.0
  Na  Na1  1  0.23  0.68  0.26  1.0
  Ta  Ta2  1  0.54  0.68  0.84  1.0
  V  V3  1  0.95  0.0  0.02  1.0

Na Na Ta V
Na2TaV crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Na2TaV cluster. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 2-coordinate geometry to one Na(2) and one V(1) atom. The Na(1)-Na(2) bond length is 1.61 Å. The Na(1)-V(1) bond length is 2.43 Å. In the second Na site, Na(2) is bonded in a distorted single-bond geometry to one Na(1) atom. Ta(1) is bonded in a 1-coordinate geometry to one V(1) atom. The Ta(1)-V(1) bond length is 2.17 Å. V(1) is bonded in a 2-coordinate geometry to one Na(1) and one Ta(1) atom.