The crystal structure described by Li2V5O10 crystallizes in the triclinic P-1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), one O(7), and one O(9) atom. In the second Li site, Li(2) is bonded to one O(1), one O(10), one O(3), one O(4), and one O(8) atom to form distorted LiO5 square pyramids that share corners with two equivalent V(6)O6 octahedra, corners with three equivalent V(4)O6 octahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(6)O6 octahedra, and edges with two equivalent V(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-76°. There are six inequivalent V sites. In the first V site, V(1) is bonded to two equivalent O(1), two equivalent O(5), and two equivalent O(8) atoms to form VO6 octahedra that share corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra, edges with two equivalent V(3)O6 octahedra, edges with four equivalent V(6)O6 octahedra, and edges with two equivalent Li(2)O5 square pyramids. The corner-sharing octahedral tilt angles range from 13-17°. In the second V site, V(2) is bonded to two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 15-23°. In the third V site, V(3) is bonded to one O(1), one O(3), one O(4), one O(5), one O(8), and one O(9) atom to form distorted VO6 octahedra that share  a cornercorner with one V(1)O6 octahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(5)O6 octahedra, edges with two equivalent V(6)O6 octahedra, and edges with two equivalent Li(2)O5 square pyramids. The corner-sharing octahedral tilt angles are 13°. In the fourth V site, V(4) is bonded to one O(10), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form distorted VO6 octahedra that share  a cornercorner with one V(2)O6 octahedra, corners with three equivalent Li(2)O5 square pyramids,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(3)O6 octahedra,  an edgeedge with one V(6)O6 octahedra, and edges with two equivalent V(5)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. In the fifth V site, V(5) is bonded to one O(5), one O(6), one O(7), one O(9), and two equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles are 17°. In the sixth V site, V(6) is bonded to one O(10), one O(5), one O(6), one O(8), and two equivalent O(1) atoms to form VO6 octahedra that share  a cornercorner with one V(2)O6 octahedra, corners with two equivalent Li(2)O5 square pyramids,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(5)O6 octahedra,  an edgeedge with one V(6)O6 octahedra, edges with two equivalent V(1)O6 octahedra, edges with two equivalent V(3)O6 octahedra, and  an edgeedge with one Li(2)O5 square pyramid. The corner-sharing octahedral tilt angles are 23°. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Li(2), one V(1), one V(3), and two equivalent V(6) atoms to form OLiV4 square pyramids that share  a cornercorner with one O(1)LiV4 square pyramid, corners with two equivalent O(3)Li2V2 trigonal pyramids,  an edgeedge with one O(1)LiV4 square pyramid, and  an edgeedge with one O(4)Li2V2 tetrahedra. In the second O site, O(2) is bonded to one Li(1), one V(2), one V(4), and two equivalent V(5) atoms to form OLiV4 square pyramids that share  a cornercorner with one O(2)LiV4 square pyramid, corners with two equivalent O(4)Li2V2 tetrahedra,  an edgeedge with one O(2)LiV4 square pyramid, and  an edgeedge with one O(3)Li2V2 trigonal pyramid. In the third O site, O(3) is bonded to one Li(1), one Li(2), one V(3), and one V(4) atom to form OLi2V2 trigonal pyramids that share corners with two equivalent O(1)LiV4 square pyramids,  an edgeedge with one O(2)LiV4 square pyramid, and edges with two equivalent O(4)Li2V2 tetrahedra. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one V(3), and one V(4) atom to form OLi2V2 tetrahedra that share corners with two equivalent O(2)LiV4 square pyramids,  an edgeedge with one O(1)LiV4 square pyramid, and edges with two equivalent O(3)Li2V2 trigonal pyramids. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one V(1), one V(3), one V(5), and one V(6) atom. In the sixth O site, O(6) is bonded in a distorted see-saw-like geometry to one V(2), one V(4), one V(5), and one V(6) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one V(2), one V(4), and one V(5) atom. In the eighth O site, O(8) is bonded in a see-saw-like geometry to one Li(2), one V(1), one V(3), and one V(6) atom. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one Li(1), one V(3), and one V(5) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Li(2), one V(4), and one V(6) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2V5O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.122
_cell_length_b   10.204
_cell_length_c   8.235
_cell_angle_alpha   68.588
_cell_angle_beta   87.110
_cell_angle_gamma   103.336
_symmetry_Int_Tables_number   1
_cell_volume   385.574
_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
  Li  Li0  1  0.634  0.093  0.307  1.0
  Li  Li1  1  0.137  0.596  0.802  1.0
  Li  Li2  1  0.366  0.907  0.693  1.0
  Li  Li3  1  0.863  0.404  0.198  1.0
  V  V4  1  0.000  0.500  0.500  1.0
  V  V5  1  0.500  1.000  1.000  1.0
  V  V6  1  0.288  0.279  0.408  1.0
  V  V7  1  0.796  0.773  0.912  1.0
  V  V8  1  0.712  0.721  0.592  1.0
  V  V9  1  0.204  0.227  0.089  1.0
  V  V10  1  0.062  0.101  0.789  1.0
  V  V11  1  0.563  0.601  0.294  1.0
  V  V12  1  0.938  0.899  0.211  1.0
  V  V13  1  0.437  0.399  0.706  1.0
  O  O14  1  0.624  0.404  0.464  1.0
  O  O15  1  0.127  0.908  0.958  1.0
  O  O16  1  0.376  0.596  0.536  1.0
  O  O17  1  0.873  0.092  0.042  1.0
  O  O18  1  0.997  0.217  0.289  1.0
  O  O19  1  0.504  0.725  0.784  1.0
  O  O20  1  0.003  0.783  0.711  1.0
  O  O21  1  0.496  0.275  0.216  1.0
  O  O22  1  0.090  0.302  0.634  1.0
  O  O23  1  0.610  0.813  0.122  1.0
  O  O24  1  0.910  0.698  0.366  1.0
  O  O25  1  0.390  0.187  0.878  1.0
  O  O26  1  0.275  0.006  0.210  1.0
  O  O27  1  0.795  0.525  0.697  1.0
  O  O28  1  0.725  0.994  0.789  1.0
  O  O29  1  0.205  0.475  0.303  1.0
  O  O30  1  0.270  0.103  0.588  1.0
  O  O31  1  0.776  0.602  0.079  1.0
  O  O32  1  0.730  0.897  0.412  1.0
  O  O33  1  0.224  0.398  0.921  1.0
[/CIF]
.
The crystal structure described by Li2V5O10 crystallizes in the triclinic P-1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), one O(7), and one O(9) atom. In the second Li site, Li(2) is bonded to one O(1), one O(10), one O(3), one O(4), and one O(8) atom to form distorted LiO5 square pyramids that share corners with two equivalent V(6)O6 octahedra, corners with three equivalent V(4)O6 octahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(6)O6 octahedra, and edges with two equivalent V(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-76°. There are six inequivalent V sites. In the first V site, V(1) is bonded to two equivalent O(1), two equivalent O(5), and two equivalent O(8) atoms to form VO6 octahedra that share corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra, edges with two equivalent V(3)O6 octahedra, edges with four equivalent V(6)O6 octahedra, and edges with two equivalent Li(2)O5 square pyramids. The corner-sharing octahedral tilt angles range from 13-17°. In the second V site, V(2) is bonded to two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms to form a mixture of corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 15-23°. In the third V site, V(3) is bonded to one O(1), one O(3), one O(4), one O(5), one O(8), and one O(9) atom to form distorted VO6 octahedra that share  a cornercorner with one V(1)O6 octahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(5)O6 octahedra, edges with two equivalent V(6)O6 octahedra, and edges with two equivalent Li(2)O5 square pyramids. The corner-sharing octahedral tilt angles are 13°. In the fourth V site, V(4) is bonded to one O(10), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form distorted VO6 octahedra that share  a cornercorner with one V(2)O6 octahedra, corners with three equivalent Li(2)O5 square pyramids,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(3)O6 octahedra,  an edgeedge with one V(6)O6 octahedra, and edges with two equivalent V(5)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. In the fifth V site, V(5) is bonded to one O(5), one O(6), one O(7), one O(9), and two equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles are 17°. In the sixth V site, V(6) is bonded to one O(10), one O(5), one O(6), one O(8), and two equivalent O(1) atoms to form VO6 octahedra that share  a cornercorner with one V(2)O6 octahedra, corners with two equivalent Li(2)O5 square pyramids,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(5)O6 octahedra,  an edgeedge with one V(6)O6 octahedra, edges with two equivalent V(1)O6 octahedra, edges with two equivalent V(3)O6 octahedra, and  an edgeedge with one Li(2)O5 square pyramid. The corner-sharing octahedral tilt angles are 23°. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Li(2), one V(1), one V(3), and two equivalent V(6) atoms to form OLiV4 square pyramids that share  a cornercorner with one O(1)LiV4 square pyramid, corners with two equivalent O(3)Li2V2 trigonal pyramids,  an edgeedge with one O(1)LiV4 square pyramid, and  an edgeedge with one O(4)Li2V2 tetrahedra. In the second O site, O(2) is bonded to one Li(1), one V(2), one V(4), and two equivalent V(5) atoms to form OLiV4 square pyramids that share  a cornercorner with one O(2)LiV4 square pyramid, corners with two equivalent O(4)Li2V2 tetrahedra,  an edgeedge with one O(2)LiV4 square pyramid, and  an edgeedge with one O(3)Li2V2 trigonal pyramid. In the third O site, O(3) is bonded to one Li(1), one Li(2), one V(3), and one V(4) atom to form OLi2V2 trigonal pyramids that share corners with two equivalent O(1)LiV4 square pyramids,  an edgeedge with one O(2)LiV4 square pyramid, and edges with two equivalent O(4)Li2V2 tetrahedra. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one V(3), and one V(4) atom to form OLi2V2 tetrahedra that share corners with two equivalent O(2)LiV4 square pyramids,  an edgeedge with one O(1)LiV4 square pyramid, and edges with two equivalent O(3)Li2V2 trigonal pyramids. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one V(1), one V(3), one V(5), and one V(6) atom. In the sixth O site, O(6) is bonded in a distorted see-saw-like geometry to one V(2), one V(4), one V(5), and one V(6) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one V(2), one V(4), and one V(5) atom. In the eighth O site, O(8) is bonded in a see-saw-like geometry to one Li(2), one V(1), one V(3), and one V(6) atom. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one Li(1), one V(3), and one V(5) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Li(2), one V(4), and one V(6) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2V5O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.122
_cell_length_b   10.204
_cell_length_c   8.235
_cell_angle_alpha   68.588
_cell_angle_beta   87.110
_cell_angle_gamma   103.336
_symmetry_Int_Tables_number   1
_cell_volume   385.574
_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
  Li  Li0  1  0.634  0.093  0.307  1.0
  Li  Li1  1  0.137  0.596  0.802  1.0
  Li  Li2  1  0.366  0.907  0.693  1.0
  Li  Li3  1  0.863  0.404  0.198  1.0
  V  V4  1  0.000  0.500  0.500  1.0
  V  V5  1  0.500  1.000  1.000  1.0
  V  V6  1  0.288  0.279  0.408  1.0
  V  V7  1  0.796  0.773  0.912  1.0
  V  V8  1  0.712  0.721  0.592  1.0
  V  V9  1  0.204  0.227  0.089  1.0
  V  V10  1  0.062  0.101  0.789  1.0
  V  V11  1  0.563  0.601  0.294  1.0
  V  V12  1  0.938  0.899  0.211  1.0
  V  V13  1  0.437  0.399  0.706  1.0
  O  O14  1  0.624  0.404  0.464  1.0
  O  O15  1  0.127  0.908  0.958  1.0
  O  O16  1  0.376  0.596  0.536  1.0
  O  O17  1  0.873  0.092  0.042  1.0
  O  O18  1  0.997  0.217  0.289  1.0
  O  O19  1  0.504  0.725  0.784  1.0
  O  O20  1  0.003  0.783  0.711  1.0
  O  O21  1  0.496  0.275  0.216  1.0
  O  O22  1  0.090  0.302  0.634  1.0
  O  O23  1  0.610  0.813  0.122  1.0
  O  O24  1  0.910  0.698  0.366  1.0
  O  O25  1  0.390  0.187  0.878  1.0
  O  O26  1  0.275  0.006  0.210  1.0
  O  O27  1  0.795  0.525  0.697  1.0
  O  O28  1  0.725  0.994  0.789  1.0
  O  O29  1  0.205  0.475  0.303  1.0
  O  O30  1  0.270  0.103  0.588  1.0
  O  O31  1  0.776  0.602  0.079  1.0
  O  O32  1  0.730  0.897  0.412  1.0
  O  O33  1  0.224  0.398  0.921  1.0
[/CIF]
.