The structure described by Li2Ni2SbO6 crystallizes in the monoclinic C2 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent Ni(3)O6 octahedra, corners with two equivalent Ni(4)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, and edges with two equivalent Li(2)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 24-69°. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent Ni(1)O6 octahedra, corners with two equivalent Ni(2)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Ni(3)O6 octahedra,  an edgeedge with one Ni(4)O6 octahedra, and edges with two equivalent Li(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 23-69°. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form NiO6 octahedra that share corners with four equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Ni(4)O6 octahedra, edges with three equivalent Sb(2)O6 octahedra, and edges with two equivalent Li(1)O4 trigonal pyramids. In the second Ni site, Ni(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form NiO6 octahedra that share corners with four equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Ni(3)O6 octahedra, edges with three equivalent Sb(1)O6 octahedra, and edges with two equivalent Li(1)O4 trigonal pyramids. In the third Ni site, Ni(3) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form NiO6 octahedra that share corners with four equivalent Li(1)O4 trigonal pyramids, edges with three equivalent Ni(2)O6 octahedra, edges with three equivalent Sb(1)O6 octahedra, and edges with two equivalent Li(2)O4 trigonal pyramids. In the fourth Ni site, Ni(4) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form NiO6 octahedra that share corners with four equivalent Li(1)O4 trigonal pyramids, edges with three equivalent Ni(1)O6 octahedra, edges with three equivalent Sb(2)O6 octahedra, and edges with two equivalent Li(2)O4 trigonal pyramids. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form SbO6 octahedra that share corners with four equivalent Li(1)O4 trigonal pyramids, corners with four equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Ni(2)O6 octahedra, and edges with three equivalent Ni(3)O6 octahedra. In the second Sb site, Sb(2) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form SbO6 octahedra that share corners with four equivalent Li(1)O4 trigonal pyramids, corners with four equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Ni(1)O6 octahedra, and edges with three equivalent Ni(4)O6 octahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Ni(2), one Ni(3), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing OLi2Ni2Sb trigonal bipyramids. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Ni(2), one Ni(3), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing OLi2Ni2Sb square pyramids. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Ni(1), one Ni(4), and one Sb(2) atom to form a mixture of distorted corner and edge-sharing OLi2Ni2Sb trigonal bipyramids. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Ni(1), one Ni(4), and one Sb(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Ni(2), one Ni(3), and one Sb(1) atom. In the sixth O site, O(6) is bonded to one Li(1), one Li(2), one Ni(1), one Ni(4), and one Sb(2) atom to form a mixture of distorted corner and edge-sharing OLi2Ni2Sb square pyramids. is represented by the CIF file [CIF]
data_Li2Ni2SbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.181
_cell_length_b   5.181
_cell_length_c   10.090
_cell_angle_alpha   89.999
_cell_angle_beta   90.011
_cell_angle_gamma   118.674
_symmetry_Int_Tables_number   1
_cell_volume   237.619
_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  0.134  0.633  0.750  1.0
  Li  Li1  1  0.368  0.866  0.250  1.0
  Li  Li2  1  0.634  0.136  0.750  1.0
  Li  Li3  1  0.864  0.366  0.250  1.0
  Ni  Ni4  1  0.169  0.831  0.500  1.0
  Ni  Ni5  1  0.331  0.669  1.000  1.0
  Ni  Ni6  1  0.661  0.339  0.000  1.0
  Ni  Ni7  1  0.839  0.161  0.500  1.0
  Sb  Sb8  1  0.993  0.007  0.000  1.0
  Sb  Sb9  1  0.507  0.493  0.500  1.0
  O  O10  1  0.030  0.688  0.107  1.0
  O  O11  1  0.980  0.319  0.886  1.0
  O  O12  1  0.188  0.530  0.393  1.0
  O  O13  1  0.470  0.812  0.607  1.0
  O  O14  1  0.182  0.156  0.599  1.0
  O  O15  1  0.318  0.344  0.098  1.0
  O  O16  1  0.655  0.682  0.901  1.0
  O  O17  1  0.312  0.970  0.893  1.0
  O  O18  1  0.845  0.818  0.402  1.0
  O  O19  1  0.520  0.181  0.386  1.0
  O  O20  1  0.819  0.480  0.614  1.0
  O  O21  1  0.681  0.020  0.114  1.0
[/CIF]
.
The structure described by Li2Ni2SbO6 crystallizes in the monoclinic C2 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent Ni(3)O6 octahedra, corners with two equivalent Ni(4)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, and edges with two equivalent Li(2)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 24-69°. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent Ni(1)O6 octahedra, corners with two equivalent Ni(2)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Ni(3)O6 octahedra,  an edgeedge with one Ni(4)O6 octahedra, and edges with two equivalent Li(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 23-69°. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form NiO6 octahedra that share corners with four equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Ni(4)O6 octahedra, edges with three equivalent Sb(2)O6 octahedra, and edges with two equivalent Li(1)O4 trigonal pyramids. In the second Ni site, Ni(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form NiO6 octahedra that share corners with four equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Ni(3)O6 octahedra, edges with three equivalent Sb(1)O6 octahedra, and edges with two equivalent Li(1)O4 trigonal pyramids. In the third Ni site, Ni(3) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form NiO6 octahedra that share corners with four equivalent Li(1)O4 trigonal pyramids, edges with three equivalent Ni(2)O6 octahedra, edges with three equivalent Sb(1)O6 octahedra, and edges with two equivalent Li(2)O4 trigonal pyramids. In the fourth Ni site, Ni(4) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form NiO6 octahedra that share corners with four equivalent Li(1)O4 trigonal pyramids, edges with three equivalent Ni(1)O6 octahedra, edges with three equivalent Sb(2)O6 octahedra, and edges with two equivalent Li(2)O4 trigonal pyramids. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form SbO6 octahedra that share corners with four equivalent Li(1)O4 trigonal pyramids, corners with four equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Ni(2)O6 octahedra, and edges with three equivalent Ni(3)O6 octahedra. In the second Sb site, Sb(2) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form SbO6 octahedra that share corners with four equivalent Li(1)O4 trigonal pyramids, corners with four equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Ni(1)O6 octahedra, and edges with three equivalent Ni(4)O6 octahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Ni(2), one Ni(3), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing OLi2Ni2Sb trigonal bipyramids. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Ni(2), one Ni(3), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing OLi2Ni2Sb square pyramids. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Ni(1), one Ni(4), and one Sb(2) atom to form a mixture of distorted corner and edge-sharing OLi2Ni2Sb trigonal bipyramids. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Ni(1), one Ni(4), and one Sb(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Ni(2), one Ni(3), and one Sb(1) atom. In the sixth O site, O(6) is bonded to one Li(1), one Li(2), one Ni(1), one Ni(4), and one Sb(2) atom to form a mixture of distorted corner and edge-sharing OLi2Ni2Sb square pyramids. is represented by the CIF file [CIF]
data_Li2Ni2SbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.181
_cell_length_b   5.181
_cell_length_c   10.090
_cell_angle_alpha   89.999
_cell_angle_beta   90.011
_cell_angle_gamma   118.674
_symmetry_Int_Tables_number   1
_cell_volume   237.619
_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  0.134  0.633  0.750  1.0
  Li  Li1  1  0.368  0.866  0.250  1.0
  Li  Li2  1  0.634  0.136  0.750  1.0
  Li  Li3  1  0.864  0.366  0.250  1.0
  Ni  Ni4  1  0.169  0.831  0.500  1.0
  Ni  Ni5  1  0.331  0.669  1.000  1.0
  Ni  Ni6  1  0.661  0.339  0.000  1.0
  Ni  Ni7  1  0.839  0.161  0.500  1.0
  Sb  Sb8  1  0.993  0.007  0.000  1.0
  Sb  Sb9  1  0.507  0.493  0.500  1.0
  O  O10  1  0.030  0.688  0.107  1.0
  O  O11  1  0.980  0.319  0.886  1.0
  O  O12  1  0.188  0.530  0.393  1.0
  O  O13  1  0.470  0.812  0.607  1.0
  O  O14  1  0.182  0.156  0.599  1.0
  O  O15  1  0.318  0.344  0.098  1.0
  O  O16  1  0.655  0.682  0.901  1.0
  O  O17  1  0.312  0.970  0.893  1.0
  O  O18  1  0.845  0.818  0.402  1.0
  O  O19  1  0.520  0.181  0.386  1.0
  O  O20  1  0.819  0.480  0.614  1.0
  O  O21  1  0.681  0.020  0.114  1.0
[/CIF]
.