data_LaNbV2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.7
_cell_length_b   4.7
_cell_length_c   4.7
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaNbV2
_chemical_formula_sum   'La1 Nb1 V2'
_cell_volume   73.62
_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
  La  La0  1  0.66  0.66  0.66  1.0
  Nb  Nb1  1  0.33  0.33  0.33  1.0
  V  V2  1  0.99  0.99  0.99  1.0
  V  V3  1  0.0  0.0  0.0  1.0

data_LaNbV2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.7
_cell_length_b   4.7
_cell_length_c   11.52
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   LaNbV2
_chemical_formula_sum   'La3 Nb3 V6'
_cell_volume   220.85
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  La  La0  3  0.0  0.0  0.34  1.0
  Nb  Nb1  3  0.0  0.0  0.67  1.0
  V  V2  3  0.0  0.0  0.0  1.0
  V  V3  3  0.0  0.0  0.01  1.0

La Nb V V
La Nb V V 0 1 o o + 0 1 o + o 0 1 + o o 0 3 o + + 0 3 + o + 0 3 + + o 0 2 - o o 0 2 o - o 0 2 o o - 1 3 o o + 1 3 o + o 1 3 + o o 1 2 - - o 1 2 - o - 1 2 o - - 2 3 + + + 
LaNbV2 crystallizes in the trigonal R3m space group. La(1) is bonded in a 11-coordinate geometry to four equivalent Nb(1), three equivalent V(2), and four equivalent V(1) atoms. There are three shorter (2.72 Å) and one longer (3.88 Å) La(1)-Nb(1) bond length. All La(1)-V(2) bond lengths are 2.72 Å. There are three shorter (2.72 Å) and one longer (3.76 Å) La(1)-V(1) bond length. Nb(1) is bonded in a distorted trigonal planar geometry to four equivalent La(1) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded in a single-bond geometry to four equivalent La(1) and one V(2) atom. The V(1)-V(2) bond length is 0.12 Å. In the second V site, V(2) is bonded in a single-bond geometry to three equivalent La(1) and one V(1) atom.