The material structure described by Li5Nb2Cu3O10 crystallizes in the triclinic P-1 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(3), one O(4), and two equivalent O(5) atoms to form LiO5 trigonal bipyramids that share corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Nb(1)O6 octahedra,  a cornercorner with one Li(2)O5 trigonal bipyramid,  an edgeedge with one Li(3)O6 octahedra, edges with two equivalent Nb(1)O6 octahedra,  an edgeedge with one Li(1)O5 trigonal bipyramid, and  an edgeedge with one Li(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 9-81°. In the second Li site, Li(2) is bonded to one O(1), one O(3), one O(4), and two equivalent O(2) atoms to form LiO5 trigonal bipyramids that share corners with four equivalent Nb(1)O6 octahedra,  a cornercorner with one Li(1)O5 trigonal bipyramid,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Nb(1)O6 octahedra,  an edgeedge with one Li(1)O5 trigonal bipyramid, and  an edgeedge with one Li(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 13-76°. In the third Li site, Li(3) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with four equivalent Li(1)O5 trigonal bipyramids, edges with four equivalent Nb(1)O6 octahedra, edges with two equivalent Li(1)O5 trigonal bipyramids, and edges with two equivalent Li(2)O5 trigonal bipyramids. Nb(1) is bonded to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form distorted NbO6 octahedra that share corners with two equivalent Li(1)O5 trigonal bipyramids, corners with four equivalent Li(2)O5 trigonal bipyramids,  an edgeedge with one Nb(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra,  an edgeedge with one Li(2)O5 trigonal bipyramid, and edges with two equivalent Li(1)O5 trigonal bipyramids. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(4) atoms. In the second Cu site, Cu(2) is bonded in a 4-coordinate geometry to one O(2), one O(5), and two equivalent O(1) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Nb(1), and two equivalent Cu(2) atoms to form distorted OLi2NbCu2 trigonal bipyramids that share corners with two equivalent O(3)Li3Nb2 square pyramids, corners with three equivalent O(2)Li2NbCu2 square pyramids, corners with three equivalent O(5)Li3NbCu square pyramids,  an edgeedge with one O(2)Li2NbCu2 square pyramid,  an edgeedge with one O(3)Li3Nb2 square pyramid,  an edgeedge with one O(5)Li3NbCu square pyramid, and  an edgeedge with one O(1)Li2NbCu2 trigonal bipyramid. In the second O site, O(2) is bonded to two equivalent Li(2), one Nb(1), one Cu(1), and one Cu(2) atom to form OLi2NbCu2 square pyramids that share  a cornercorner with one O(2)Li2NbCu2 square pyramid, corners with two equivalent O(3)Li3Nb2 square pyramids, corners with three equivalent O(1)Li2NbCu2 trigonal bipyramids,  an edgeedge with one O(2)Li2NbCu2 square pyramid,  an edgeedge with one O(3)Li3Nb2 square pyramid,  an edgeedge with one O(5)Li3NbCu square pyramid, and  an edgeedge with one O(1)Li2NbCu2 trigonal bipyramid. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Li(3), and two equivalent Nb(1) atoms to form distorted OLi3Nb2 square pyramids that share  a cornercorner with one O(3)Li3Nb2 square pyramid, corners with two equivalent O(2)Li2NbCu2 square pyramids, corners with two equivalent O(5)Li3NbCu square pyramids, corners with two equivalent O(1)Li2NbCu2 trigonal bipyramids,  an edgeedge with one O(2)Li2NbCu2 square pyramid,  an edgeedge with one O(3)Li3Nb2 square pyramid, edges with two equivalent O(5)Li3NbCu square pyramids, and  an edgeedge with one O(1)Li2NbCu2 trigonal bipyramid. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Li(1), one Li(2), one Li(3), one Nb(1), and one Cu(1) atom. In the fifth O site, O(5) is bonded to one Li(3), two equivalent Li(1), one Nb(1), and one Cu(2) atom to form distorted OLi3NbCu square pyramids that share  a cornercorner with one O(5)Li3NbCu square pyramid, corners with two equivalent O(3)Li3Nb2 square pyramids, corners with three equivalent O(1)Li2NbCu2 trigonal bipyramids,  an edgeedge with one O(2)Li2NbCu2 square pyramid,  an edgeedge with one O(5)Li3NbCu square pyramid, edges with two equivalent O(3)Li3Nb2 square pyramids, and  an edgeedge with one O(1)Li2NbCu2 trigonal bipyramid. is represented by the CIF card [CIF]
data_Li5Nb2Cu3O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.269
_cell_length_b   5.779
_cell_length_c   7.725
_cell_angle_alpha   100.857
_cell_angle_beta   105.624
_cell_angle_gamma   106.122
_symmetry_Int_Tables_number   1
_cell_volume   208.637
_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
  Li  Li0  1  0.220  0.868  0.375  1.0
  Li  Li1  1  0.411  0.329  0.806  1.0
  Li  Li2  1  0.500  0.500  0.500  1.0
  Li  Li3  1  0.589  0.671  0.194  1.0
  Li  Li4  1  0.780  0.132  0.625  1.0
  Nb  Nb5  1  0.109  0.726  0.703  1.0
  Nb  Nb6  1  0.891  0.274  0.297  1.0
  Cu  Cu7  1  0.000  0.500  0.000  1.0
  Cu  Cu8  1  0.697  0.877  0.900  1.0
  Cu  Cu9  1  0.303  0.123  0.100  1.0
  O  O10  1  0.072  0.035  0.827  1.0
  O  O11  1  0.332  0.647  0.931  1.0
  O  O12  1  0.139  0.342  0.551  1.0
  O  O13  1  0.217  0.525  0.249  1.0
  O  O14  1  0.451  0.875  0.652  1.0
  O  O15  1  0.549  0.125  0.348  1.0
  O  O16  1  0.783  0.475  0.751  1.0
  O  O17  1  0.861  0.658  0.449  1.0
  O  O18  1  0.668  0.353  0.069  1.0
  O  O19  1  0.928  0.965  0.173  1.0
[/CIF]
.
The material structure described by Li5Nb2Cu3O10 crystallizes in the triclinic P-1 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(3), one O(4), and two equivalent O(5) atoms to form LiO5 trigonal bipyramids that share corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Nb(1)O6 octahedra,  a cornercorner with one Li(2)O5 trigonal bipyramid,  an edgeedge with one Li(3)O6 octahedra, edges with two equivalent Nb(1)O6 octahedra,  an edgeedge with one Li(1)O5 trigonal bipyramid, and  an edgeedge with one Li(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 9-81°. In the second Li site, Li(2) is bonded to one O(1), one O(3), one O(4), and two equivalent O(2) atoms to form LiO5 trigonal bipyramids that share corners with four equivalent Nb(1)O6 octahedra,  a cornercorner with one Li(1)O5 trigonal bipyramid,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Nb(1)O6 octahedra,  an edgeedge with one Li(1)O5 trigonal bipyramid, and  an edgeedge with one Li(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 13-76°. In the third Li site, Li(3) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with four equivalent Li(1)O5 trigonal bipyramids, edges with four equivalent Nb(1)O6 octahedra, edges with two equivalent Li(1)O5 trigonal bipyramids, and edges with two equivalent Li(2)O5 trigonal bipyramids. Nb(1) is bonded to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form distorted NbO6 octahedra that share corners with two equivalent Li(1)O5 trigonal bipyramids, corners with four equivalent Li(2)O5 trigonal bipyramids,  an edgeedge with one Nb(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra,  an edgeedge with one Li(2)O5 trigonal bipyramid, and edges with two equivalent Li(1)O5 trigonal bipyramids. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(4) atoms. In the second Cu site, Cu(2) is bonded in a 4-coordinate geometry to one O(2), one O(5), and two equivalent O(1) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Nb(1), and two equivalent Cu(2) atoms to form distorted OLi2NbCu2 trigonal bipyramids that share corners with two equivalent O(3)Li3Nb2 square pyramids, corners with three equivalent O(2)Li2NbCu2 square pyramids, corners with three equivalent O(5)Li3NbCu square pyramids,  an edgeedge with one O(2)Li2NbCu2 square pyramid,  an edgeedge with one O(3)Li3Nb2 square pyramid,  an edgeedge with one O(5)Li3NbCu square pyramid, and  an edgeedge with one O(1)Li2NbCu2 trigonal bipyramid. In the second O site, O(2) is bonded to two equivalent Li(2), one Nb(1), one Cu(1), and one Cu(2) atom to form OLi2NbCu2 square pyramids that share  a cornercorner with one O(2)Li2NbCu2 square pyramid, corners with two equivalent O(3)Li3Nb2 square pyramids, corners with three equivalent O(1)Li2NbCu2 trigonal bipyramids,  an edgeedge with one O(2)Li2NbCu2 square pyramid,  an edgeedge with one O(3)Li3Nb2 square pyramid,  an edgeedge with one O(5)Li3NbCu square pyramid, and  an edgeedge with one O(1)Li2NbCu2 trigonal bipyramid. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Li(3), and two equivalent Nb(1) atoms to form distorted OLi3Nb2 square pyramids that share  a cornercorner with one O(3)Li3Nb2 square pyramid, corners with two equivalent O(2)Li2NbCu2 square pyramids, corners with two equivalent O(5)Li3NbCu square pyramids, corners with two equivalent O(1)Li2NbCu2 trigonal bipyramids,  an edgeedge with one O(2)Li2NbCu2 square pyramid,  an edgeedge with one O(3)Li3Nb2 square pyramid, edges with two equivalent O(5)Li3NbCu square pyramids, and  an edgeedge with one O(1)Li2NbCu2 trigonal bipyramid. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Li(1), one Li(2), one Li(3), one Nb(1), and one Cu(1) atom. In the fifth O site, O(5) is bonded to one Li(3), two equivalent Li(1), one Nb(1), and one Cu(2) atom to form distorted OLi3NbCu square pyramids that share  a cornercorner with one O(5)Li3NbCu square pyramid, corners with two equivalent O(3)Li3Nb2 square pyramids, corners with three equivalent O(1)Li2NbCu2 trigonal bipyramids,  an edgeedge with one O(2)Li2NbCu2 square pyramid,  an edgeedge with one O(5)Li3NbCu square pyramid, edges with two equivalent O(3)Li3Nb2 square pyramids, and  an edgeedge with one O(1)Li2NbCu2 trigonal bipyramid. is represented by the CIF card [CIF]
data_Li5Nb2Cu3O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.269
_cell_length_b   5.779
_cell_length_c   7.725
_cell_angle_alpha   100.857
_cell_angle_beta   105.624
_cell_angle_gamma   106.122
_symmetry_Int_Tables_number   1
_cell_volume   208.637
_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
  Li  Li0  1  0.220  0.868  0.375  1.0
  Li  Li1  1  0.411  0.329  0.806  1.0
  Li  Li2  1  0.500  0.500  0.500  1.0
  Li  Li3  1  0.589  0.671  0.194  1.0
  Li  Li4  1  0.780  0.132  0.625  1.0
  Nb  Nb5  1  0.109  0.726  0.703  1.0
  Nb  Nb6  1  0.891  0.274  0.297  1.0
  Cu  Cu7  1  0.000  0.500  0.000  1.0
  Cu  Cu8  1  0.697  0.877  0.900  1.0
  Cu  Cu9  1  0.303  0.123  0.100  1.0
  O  O10  1  0.072  0.035  0.827  1.0
  O  O11  1  0.332  0.647  0.931  1.0
  O  O12  1  0.139  0.342  0.551  1.0
  O  O13  1  0.217  0.525  0.249  1.0
  O  O14  1  0.451  0.875  0.652  1.0
  O  O15  1  0.549  0.125  0.348  1.0
  O  O16  1  0.783  0.475  0.751  1.0
  O  O17  1  0.861  0.658  0.449  1.0
  O  O18  1  0.668  0.353  0.069  1.0
  O  O19  1  0.928  0.965  0.173  1.0
[/CIF]
.