The material described by V5O9 crystallizes in the triclinic P1 space group. There are ten inequivalent V sites. In the first V site, V(1) is bonded to one O(12), one O(14), one O(15), one O(16), one O(17), and one O(2) atom to form a mixture of distorted corner, edge, and face-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. In the second V site, V(2) is bonded to one O(1), one O(11), one O(13), one O(15), one O(16), and one O(18) atom to form a mixture of distorted corner, edge, and face-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. In the third V site, V(3) is bonded to one O(1), one O(11), one O(12), one O(15), one O(18), and one O(3) atom to form a mixture of distorted corner, edge, and face-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 43-55°. In the fourth V site, V(4) is bonded to one O(11), one O(12), one O(16), one O(17), one O(2), and one O(4) atom to form a mixture of distorted corner, edge, and face-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 43-55°. In the fifth V site, V(5) is bonded to one O(11), one O(14), one O(17), one O(3), one O(6), and one O(9) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 45-61°. In the sixth V site, V(6) is bonded to one O(10), one O(12), one O(13), one O(18), one O(4), and one O(5) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 45-61°. In the seventh V site, V(7) is bonded to one O(1), one O(15), one O(17), one O(5), one O(8), and one O(9) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 43-61°. In the eighth V site, V(8) is bonded to one O(10), one O(16), one O(18), one O(2), one O(6), and one O(7) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 43-61°. In the ninth V site, V(9) is bonded to one O(10), one O(3), one O(4), one O(7), one O(8), and one O(9) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the tenth V site, V(10) is bonded to one O(13), one O(14), one O(5), one O(6), one O(7), and one O(8) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 44-51°. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one V(2), one V(3), and one V(7) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one V(1), one V(4), and one V(8) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one V(3), one V(5), and one V(9) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one V(4), one V(6), and one V(9) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one V(10), one V(6), and one V(7) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one V(10), one V(5), and one V(8) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one V(10), one V(8), and one V(9) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one V(10), one V(7), and one V(9) atom. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one V(5), one V(7), and one V(9) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one V(6), one V(8), and one V(9) atom. In the eleventh O site, O(11) is bonded to one V(2), one V(3), one V(4), and one V(5) atom to form a mixture of corner and edge-sharing OV4 trigonal pyramids. In the twelfth O site, O(12) is bonded to one V(1), one V(3), one V(4), and one V(6) atom to form a mixture of corner and edge-sharing OV4 trigonal pyramids. In the thirteenth O site, O(13) is bonded in a distorted T-shaped geometry to one V(10), one V(2), and one V(6) atom. In the fourteenth O site, O(14) is bonded in a distorted T-shaped geometry to one V(1), one V(10), and one V(5) atom. In the fifteenth O site, O(15) is bonded to one V(1), one V(2), one V(3), and one V(7) atom to form a mixture of corner and edge-sharing OV4 trigonal pyramids. In the sixteenth O site, O(16) is bonded to one V(1), one V(2), one V(4), and one V(8) atom to form a mixture of corner and edge-sharing OV4 trigonal pyramids. In the seventeenth O site, O(17) is bonded to one V(1), one V(4), one V(5), and one V(7) atom to form distorted edge-sharing OV4 trigonal pyramids. In the eighteenth O site, O(18) is bonded to one V(2), one V(3), one V(6), and one V(8) atom to form distorted edge-sharing OV4 trigonal pyramids. is represented by the CIF card [CIF]
data_V5O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.495
_cell_length_b   6.999
_cell_length_c   8.383
_cell_angle_alpha   69.399
_cell_angle_beta   74.988
_cell_angle_gamma   70.604
_symmetry_Int_Tables_number   1
_cell_volume   280.957
_cell_formula_units_Z   2
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  0.720  0.823  0.422  1.0
  V  V1  1  0.280  0.176  0.577  1.0
  V  V2  1  0.721  0.322  0.423  1.0
  V  V3  1  0.278  0.678  0.577  1.0
  V  V4  1  0.350  0.658  0.205  1.0
  V  V5  1  0.651  0.342  0.795  1.0
  V  V6  1  0.341  0.166  0.202  1.0
  V  V7  1  0.658  0.834  0.798  1.0
  V  V8  1  0.000  0.500  0.000  1.0
  V  V9  1  0.999  0.001  1.000  1.0
  O  O10  1  0.060  0.205  0.419  1.0
  O  O11  1  0.940  0.795  0.581  1.0
  O  O12  1  0.716  0.509  0.200  1.0
  O  O13  1  0.285  0.491  0.800  1.0
  O  O14  1  0.624  0.151  0.023  1.0
  O  O15  1  0.375  0.849  0.978  1.0
  O  O16  1  0.911  0.808  0.921  1.0
  O  O17  1  0.088  0.193  0.079  1.0
  O  O18  1  0.259  0.466  0.139  1.0
  O  O19  1  0.742  0.534  0.861  1.0
  O  O20  1  0.313  0.469  0.460  1.0
  O  O21  1  0.688  0.531  0.541  1.0
  O  O22  1  0.027  0.187  0.760  1.0
  O  O23  1  0.974  0.813  0.240  1.0
  O  O24  1  0.580  0.134  0.366  1.0
  O  O25  1  0.420  0.865  0.634  1.0
  O  O26  1  0.407  0.851  0.324  1.0
  O  O27  1  0.594  0.149  0.676  1.0
[/CIF]
.
The material described by V5O9 crystallizes in the triclinic P1 space group. There are ten inequivalent V sites. In the first V site, V(1) is bonded to one O(12), one O(14), one O(15), one O(16), one O(17), and one O(2) atom to form a mixture of distorted corner, edge, and face-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. In the second V site, V(2) is bonded to one O(1), one O(11), one O(13), one O(15), one O(16), and one O(18) atom to form a mixture of distorted corner, edge, and face-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. In the third V site, V(3) is bonded to one O(1), one O(11), one O(12), one O(15), one O(18), and one O(3) atom to form a mixture of distorted corner, edge, and face-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 43-55°. In the fourth V site, V(4) is bonded to one O(11), one O(12), one O(16), one O(17), one O(2), and one O(4) atom to form a mixture of distorted corner, edge, and face-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 43-55°. In the fifth V site, V(5) is bonded to one O(11), one O(14), one O(17), one O(3), one O(6), and one O(9) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 45-61°. In the sixth V site, V(6) is bonded to one O(10), one O(12), one O(13), one O(18), one O(4), and one O(5) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 45-61°. In the seventh V site, V(7) is bonded to one O(1), one O(15), one O(17), one O(5), one O(8), and one O(9) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 43-61°. In the eighth V site, V(8) is bonded to one O(10), one O(16), one O(18), one O(2), one O(6), and one O(7) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 43-61°. In the ninth V site, V(9) is bonded to one O(10), one O(3), one O(4), one O(7), one O(8), and one O(9) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the tenth V site, V(10) is bonded to one O(13), one O(14), one O(5), one O(6), one O(7), and one O(8) atom to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 44-51°. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one V(2), one V(3), and one V(7) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one V(1), one V(4), and one V(8) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one V(3), one V(5), and one V(9) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one V(4), one V(6), and one V(9) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one V(10), one V(6), and one V(7) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one V(10), one V(5), and one V(8) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one V(10), one V(8), and one V(9) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one V(10), one V(7), and one V(9) atom. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one V(5), one V(7), and one V(9) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one V(6), one V(8), and one V(9) atom. In the eleventh O site, O(11) is bonded to one V(2), one V(3), one V(4), and one V(5) atom to form a mixture of corner and edge-sharing OV4 trigonal pyramids. In the twelfth O site, O(12) is bonded to one V(1), one V(3), one V(4), and one V(6) atom to form a mixture of corner and edge-sharing OV4 trigonal pyramids. In the thirteenth O site, O(13) is bonded in a distorted T-shaped geometry to one V(10), one V(2), and one V(6) atom. In the fourteenth O site, O(14) is bonded in a distorted T-shaped geometry to one V(1), one V(10), and one V(5) atom. In the fifteenth O site, O(15) is bonded to one V(1), one V(2), one V(3), and one V(7) atom to form a mixture of corner and edge-sharing OV4 trigonal pyramids. In the sixteenth O site, O(16) is bonded to one V(1), one V(2), one V(4), and one V(8) atom to form a mixture of corner and edge-sharing OV4 trigonal pyramids. In the seventeenth O site, O(17) is bonded to one V(1), one V(4), one V(5), and one V(7) atom to form distorted edge-sharing OV4 trigonal pyramids. In the eighteenth O site, O(18) is bonded to one V(2), one V(3), one V(6), and one V(8) atom to form distorted edge-sharing OV4 trigonal pyramids. is represented by the CIF card [CIF]
data_V5O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.495
_cell_length_b   6.999
_cell_length_c   8.383
_cell_angle_alpha   69.399
_cell_angle_beta   74.988
_cell_angle_gamma   70.604
_symmetry_Int_Tables_number   1
_cell_volume   280.957
_cell_formula_units_Z   2
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  0.720  0.823  0.422  1.0
  V  V1  1  0.280  0.176  0.577  1.0
  V  V2  1  0.721  0.322  0.423  1.0
  V  V3  1  0.278  0.678  0.577  1.0
  V  V4  1  0.350  0.658  0.205  1.0
  V  V5  1  0.651  0.342  0.795  1.0
  V  V6  1  0.341  0.166  0.202  1.0
  V  V7  1  0.658  0.834  0.798  1.0
  V  V8  1  0.000  0.500  0.000  1.0
  V  V9  1  0.999  0.001  1.000  1.0
  O  O10  1  0.060  0.205  0.419  1.0
  O  O11  1  0.940  0.795  0.581  1.0
  O  O12  1  0.716  0.509  0.200  1.0
  O  O13  1  0.285  0.491  0.800  1.0
  O  O14  1  0.624  0.151  0.023  1.0
  O  O15  1  0.375  0.849  0.978  1.0
  O  O16  1  0.911  0.808  0.921  1.0
  O  O17  1  0.088  0.193  0.079  1.0
  O  O18  1  0.259  0.466  0.139  1.0
  O  O19  1  0.742  0.534  0.861  1.0
  O  O20  1  0.313  0.469  0.460  1.0
  O  O21  1  0.688  0.531  0.541  1.0
  O  O22  1  0.027  0.187  0.760  1.0
  O  O23  1  0.974  0.813  0.240  1.0
  O  O24  1  0.580  0.134  0.366  1.0
  O  O25  1  0.420  0.865  0.634  1.0
  O  O26  1  0.407  0.851  0.324  1.0
  O  O27  1  0.594  0.149  0.676  1.0
[/CIF]
.