The compound described by V2O3 crystallizes in the triclinic P1 space group. There are six inequivalent V sites. In the first V site, V(1) is bonded to one O(5), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 1-69°. In the second V site, V(2) is bonded to one O(2), one O(9), two equivalent O(6), and two equivalent O(8) atoms to form a mixture of distorted corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 56-69°. In the third V site, V(3) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(8), two equivalent O(5), and two equivalent O(7) atoms. In the fourth V site, V(4) is bonded to one O(4), one O(7), two equivalent O(1), and two equivalent O(2) atoms to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 1-59°. In the fifth V site, V(5) is bonded in a 6-coordinate geometry to one O(3), one O(8), two equivalent O(7), and two equivalent O(9) atoms. In the sixth V site, V(6) is bonded in a 7-coordinate geometry to one O(1), one O(5), one O(9), two equivalent O(4), and two equivalent O(6) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded to one V(3), one V(6), two equivalent V(1), and two equivalent V(4) atoms to form OV6 octahedra that share  a cornercorner with one O(4)V4 tetrahedra,  a cornercorner with one O(5)V4 tetrahedra,  a cornercorner with one O(8)V4 trigonal pyramid,  a cornercorner with one O(9)V4 trigonal pyramid, edges with two equivalent O(1)V6 octahedra, edges with two equivalent O(4)V4 tetrahedra, edges with two equivalent O(5)V4 tetrahedra, and edges with two equivalent O(7)V5 trigonal bipyramids. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one V(2) and two equivalent V(4) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to one V(5) and two equivalent V(1) atoms. In the fourth O site, O(4) is bonded to one V(3), one V(4), and two equivalent V(6) atoms to form OV4 tetrahedra that share  a cornercorner with one O(1)V6 octahedra, corners with two equivalent O(4)V4 tetrahedra, corners with three equivalent O(7)V5 trigonal bipyramids,  a cornercorner with one O(8)V4 trigonal pyramid, corners with two equivalent O(9)V4 trigonal pyramids, edges with two equivalent O(1)V6 octahedra, and edges with two equivalent O(5)V4 tetrahedra. The corner-sharing octahedral tilt angles are 42°. In the fifth O site, O(5) is bonded to one V(1), one V(6), and two equivalent V(3) atoms to form OV4 tetrahedra that share  a cornercorner with one O(1)V6 octahedra, corners with two equivalent O(5)V4 tetrahedra, corners with two equivalent O(7)V5 trigonal bipyramids,  a cornercorner with one O(9)V4 trigonal pyramid, corners with two equivalent O(8)V4 trigonal pyramids, edges with two equivalent O(1)V6 octahedra, edges with two equivalent O(4)V4 tetrahedra, and  an edgeedge with one O(7)V5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 44°. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one V(1), two equivalent V(2), and two equivalent V(6) atoms. In the seventh O site, O(7) is bonded to one V(4), two equivalent V(3), and two equivalent V(5) atoms to form distorted OV5 trigonal bipyramids that share corners with two equivalent O(5)V4 tetrahedra, corners with three equivalent O(4)V4 tetrahedra, corners with two equivalent O(9)V4 trigonal pyramids, edges with two equivalent O(1)V6 octahedra,  an edgeedge with one O(5)V4 tetrahedra, edges with two equivalent O(7)V5 trigonal bipyramids,  an edgeedge with one O(9)V4 trigonal pyramid, and edges with two equivalent O(8)V4 trigonal pyramids. In the eighth O site, O(8) is bonded to one V(3), one V(5), and two equivalent V(2) atoms to form OV4 trigonal pyramids that share  a cornercorner with one O(1)V6 octahedra,  a cornercorner with one O(4)V4 tetrahedra, corners with two equivalent O(5)V4 tetrahedra, corners with two equivalent O(8)V4 trigonal pyramids, edges with two equivalent O(7)V5 trigonal bipyramids, and edges with two equivalent O(9)V4 trigonal pyramids. The corner-sharing octahedral tilt angles are 40°. In the ninth O site, O(9) is bonded to one V(2), one V(6), and two equivalent V(5) atoms to form OV4 trigonal pyramids that share  a cornercorner with one O(1)V6 octahedra,  a cornercorner with one O(5)V4 tetrahedra, corners with two equivalent O(4)V4 tetrahedra, corners with two equivalent O(7)V5 trigonal bipyramids, corners with two equivalent O(9)V4 trigonal pyramids,  an edgeedge with one O(7)V5 trigonal bipyramid, and edges with two equivalent O(8)V4 trigonal pyramids. The corner-sharing octahedral tilt angles are 38°. is represented by the CIF card [CIF]
data_V2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.112
_cell_length_b   6.890
_cell_length_c   7.614
_cell_angle_alpha   81.369
_cell_angle_beta   90.716
_cell_angle_gamma   76.544
_symmetry_Int_Tables_number   1
_cell_volume   156.773
_cell_formula_units_Z   3
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
  V  V0  1  0.962  0.066  0.182  1.0
  V  V1  1  0.645  0.697  0.496  1.0
  V  V2  1  0.312  0.368  0.870  1.0
  V  V3  1  0.019  0.933  0.816  1.0
  V  V4  1  0.363  0.293  0.509  1.0
  V  V5  1  0.689  0.631  0.133  1.0
  O  O6  1  0.480  0.997  0.999  1.0
  O  O7  1  0.554  0.897  0.660  1.0
  O  O8  1  0.459  0.120  0.326  1.0
  O  O9  1  0.171  0.651  0.963  1.0
  O  O10  1  0.826  0.350  0.038  1.0
  O  O11  1  0.136  0.770  0.292  1.0
  O  O12  1  0.884  0.230  0.713  1.0
  O  O13  1  0.214  0.550  0.631  1.0
  O  O14  1  0.785  0.447  0.373  1.0
[/CIF]
.
The compound described by V2O3 crystallizes in the triclinic P1 space group. There are six inequivalent V sites. In the first V site, V(1) is bonded to one O(5), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 1-69°. In the second V site, V(2) is bonded to one O(2), one O(9), two equivalent O(6), and two equivalent O(8) atoms to form a mixture of distorted corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 56-69°. In the third V site, V(3) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(8), two equivalent O(5), and two equivalent O(7) atoms. In the fourth V site, V(4) is bonded to one O(4), one O(7), two equivalent O(1), and two equivalent O(2) atoms to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 1-59°. In the fifth V site, V(5) is bonded in a 6-coordinate geometry to one O(3), one O(8), two equivalent O(7), and two equivalent O(9) atoms. In the sixth V site, V(6) is bonded in a 7-coordinate geometry to one O(1), one O(5), one O(9), two equivalent O(4), and two equivalent O(6) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded to one V(3), one V(6), two equivalent V(1), and two equivalent V(4) atoms to form OV6 octahedra that share  a cornercorner with one O(4)V4 tetrahedra,  a cornercorner with one O(5)V4 tetrahedra,  a cornercorner with one O(8)V4 trigonal pyramid,  a cornercorner with one O(9)V4 trigonal pyramid, edges with two equivalent O(1)V6 octahedra, edges with two equivalent O(4)V4 tetrahedra, edges with two equivalent O(5)V4 tetrahedra, and edges with two equivalent O(7)V5 trigonal bipyramids. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one V(2) and two equivalent V(4) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to one V(5) and two equivalent V(1) atoms. In the fourth O site, O(4) is bonded to one V(3), one V(4), and two equivalent V(6) atoms to form OV4 tetrahedra that share  a cornercorner with one O(1)V6 octahedra, corners with two equivalent O(4)V4 tetrahedra, corners with three equivalent O(7)V5 trigonal bipyramids,  a cornercorner with one O(8)V4 trigonal pyramid, corners with two equivalent O(9)V4 trigonal pyramids, edges with two equivalent O(1)V6 octahedra, and edges with two equivalent O(5)V4 tetrahedra. The corner-sharing octahedral tilt angles are 42°. In the fifth O site, O(5) is bonded to one V(1), one V(6), and two equivalent V(3) atoms to form OV4 tetrahedra that share  a cornercorner with one O(1)V6 octahedra, corners with two equivalent O(5)V4 tetrahedra, corners with two equivalent O(7)V5 trigonal bipyramids,  a cornercorner with one O(9)V4 trigonal pyramid, corners with two equivalent O(8)V4 trigonal pyramids, edges with two equivalent O(1)V6 octahedra, edges with two equivalent O(4)V4 tetrahedra, and  an edgeedge with one O(7)V5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 44°. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one V(1), two equivalent V(2), and two equivalent V(6) atoms. In the seventh O site, O(7) is bonded to one V(4), two equivalent V(3), and two equivalent V(5) atoms to form distorted OV5 trigonal bipyramids that share corners with two equivalent O(5)V4 tetrahedra, corners with three equivalent O(4)V4 tetrahedra, corners with two equivalent O(9)V4 trigonal pyramids, edges with two equivalent O(1)V6 octahedra,  an edgeedge with one O(5)V4 tetrahedra, edges with two equivalent O(7)V5 trigonal bipyramids,  an edgeedge with one O(9)V4 trigonal pyramid, and edges with two equivalent O(8)V4 trigonal pyramids. In the eighth O site, O(8) is bonded to one V(3), one V(5), and two equivalent V(2) atoms to form OV4 trigonal pyramids that share  a cornercorner with one O(1)V6 octahedra,  a cornercorner with one O(4)V4 tetrahedra, corners with two equivalent O(5)V4 tetrahedra, corners with two equivalent O(8)V4 trigonal pyramids, edges with two equivalent O(7)V5 trigonal bipyramids, and edges with two equivalent O(9)V4 trigonal pyramids. The corner-sharing octahedral tilt angles are 40°. In the ninth O site, O(9) is bonded to one V(2), one V(6), and two equivalent V(5) atoms to form OV4 trigonal pyramids that share  a cornercorner with one O(1)V6 octahedra,  a cornercorner with one O(5)V4 tetrahedra, corners with two equivalent O(4)V4 tetrahedra, corners with two equivalent O(7)V5 trigonal bipyramids, corners with two equivalent O(9)V4 trigonal pyramids,  an edgeedge with one O(7)V5 trigonal bipyramid, and edges with two equivalent O(8)V4 trigonal pyramids. The corner-sharing octahedral tilt angles are 38°. is represented by the CIF card [CIF]
data_V2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.112
_cell_length_b   6.890
_cell_length_c   7.614
_cell_angle_alpha   81.369
_cell_angle_beta   90.716
_cell_angle_gamma   76.544
_symmetry_Int_Tables_number   1
_cell_volume   156.773
_cell_formula_units_Z   3
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
  V  V0  1  0.962  0.066  0.182  1.0
  V  V1  1  0.645  0.697  0.496  1.0
  V  V2  1  0.312  0.368  0.870  1.0
  V  V3  1  0.019  0.933  0.816  1.0
  V  V4  1  0.363  0.293  0.509  1.0
  V  V5  1  0.689  0.631  0.133  1.0
  O  O6  1  0.480  0.997  0.999  1.0
  O  O7  1  0.554  0.897  0.660  1.0
  O  O8  1  0.459  0.120  0.326  1.0
  O  O9  1  0.171  0.651  0.963  1.0
  O  O10  1  0.826  0.350  0.038  1.0
  O  O11  1  0.136  0.770  0.292  1.0
  O  O12  1  0.884  0.230  0.713  1.0
  O  O13  1  0.214  0.550  0.631  1.0
  O  O14  1  0.785  0.447  0.373  1.0
[/CIF]
.