The material described by Li4Cr3Fe3(SbO8)2 is Spinel-derived structured and crystallizes in the monoclinic Cm space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(12), one O(3), and two equivalent O(9) atoms to form LiO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with three equivalent Sb(2)O6 octahedra, and corners with four equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-60°. In the second Li site, Li(2) is bonded to one O(5), one O(8), and two equivalent O(10) atoms to form distorted LiO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with three equivalent Sb(2)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 62-65°. In the third Li site, Li(3) is bonded to one O(4), one O(7), and two equivalent O(1) atoms to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Cr(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with three equivalent Sb(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and edges with two equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 61-64°. In the fourth Li site, Li(4) is bonded to one O(11), one O(2), and two equivalent O(6) atoms to form LiO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with three equivalent Sb(1)O6 octahedra, and corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-62°. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(3), one O(4), two equivalent O(10), and two equivalent O(6) atoms to form CrO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid,  an edgeedge with one Sb(1)O6 octahedra, edges with four equivalent Fe(1)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 50°. In the second Cr site, Cr(2) is bonded to one O(1), one O(11), one O(12), one O(5), one O(7), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sb(2)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 52°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(2), one O(3), one O(4), one O(6), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid,  an edgeedge with one Sb(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 51°. In the second Fe site, Fe(2) is bonded to one O(11), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form FeO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sb(2)O6 octahedra, edges with four equivalent Cr(2)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 51°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(2), one O(7), two equivalent O(1), and two equivalent O(6) atoms to form SbO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Cr(2)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra, corners with three equivalent Li(3)O4 trigonal pyramids,  an edgeedge with one Cr(1)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the second Sb site, Sb(2) is bonded to one O(12), one O(8), two equivalent O(10), and two equivalent O(9) atoms to form SbO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Fe(2)O6 octahedra, and edges with two equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(3), one Cr(2), one Fe(2), and one Sb(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), two equivalent Fe(1), and one Sb(1) atom. In the third O site, O(3) is bonded to one Li(1), one Cr(1), and two equivalent Fe(1) atoms to form distorted OLiCrFe2 trigonal pyramids that share corners with three equivalent O(4)LiCrFe2 tetrahedra,  a cornercorner with one O(12)LiCr2Sb trigonal pyramid, and corners with two equivalent O(9)LiCrFeSb trigonal pyramids. In the fourth O site, O(4) is bonded to one Li(3), one Cr(1), and two equivalent Fe(1) atoms to form corner-sharing OLiCrFe2 tetrahedra. In the fifth O site, O(5) is bonded to one Li(2), two equivalent Cr(2), and one Fe(2) atom to form OLiCr2Fe tetrahedra that share corners with two equivalent O(12)LiCr2Sb trigonal pyramids, corners with three equivalent O(11)LiCr2Fe trigonal pyramids, and corners with four equivalent O(9)LiCrFeSb trigonal pyramids. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Cr(1), one Fe(1), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to one Li(3), two equivalent Cr(2), and one Sb(1) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Li(2), two equivalent Fe(1), and one Sb(2) atom. In the ninth O site, O(9) is bonded to one Li(1), one Cr(2), one Fe(2), and one Sb(2) atom to form distorted OLiCrFeSb trigonal pyramids that share corners with two equivalent O(5)LiCr2Fe tetrahedra,  a cornercorner with one O(12)LiCr2Sb trigonal pyramid,  a cornercorner with one O(3)LiCrFe2 trigonal pyramid,  a cornercorner with one O(9)LiCrFeSb trigonal pyramid,  an edgeedge with one O(11)LiCr2Fe trigonal pyramid,  an edgeedge with one O(12)LiCr2Sb trigonal pyramid, and  an edgeedge with one O(9)LiCrFeSb trigonal pyramid. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Li(2), one Cr(1), one Fe(1), and one Sb(2) atom. In the eleventh O site, O(11) is bonded to one Li(4), two equivalent Cr(2), and one Fe(2) atom to form distorted OLiCr2Fe trigonal pyramids that share corners with three equivalent O(5)LiCr2Fe tetrahedra,  an edgeedge with one O(12)LiCr2Sb trigonal pyramid, and edges with two equivalent O(9)LiCrFeSb trigonal pyramids. In the twelfth O site, O(12) is bonded to one Li(1), two equivalent Cr(2), and one Sb(2) atom to form distorted OLiCr2Sb trigonal pyramids that share corners with two equivalent O(5)LiCr2Fe tetrahedra,  a cornercorner with one O(3)LiCrFe2 trigonal pyramid, corners with two equivalent O(9)LiCrFeSb trigonal pyramids,  an edgeedge with one O(11)LiCr2Fe trigonal pyramid, and edges with two equivalent O(9)LiCrFeSb trigonal pyramids. is represented by the CIF file [CIF]
data_Li4Cr3Fe3(SbO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.955
_cell_length_b   5.969
_cell_length_c   9.652
_cell_angle_alpha   89.991
_cell_angle_beta   89.828
_cell_angle_gamma   120.065
_symmetry_Int_Tables_number   1
_cell_volume   296.907
_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  0.331  0.666  0.908  1.0
  Li  Li1  1  0.001  0.000  0.997  1.0
  Li  Li2  1  0.003  0.002  0.499  1.0
  Li  Li3  1  0.667  0.333  0.412  1.0
  Cr  Cr4  1  0.657  0.829  0.221  1.0
  Cr  Cr5  1  0.831  0.661  0.721  1.0
  Cr  Cr6  1  0.830  0.170  0.721  1.0
  Fe  Fe7  1  0.168  0.829  0.222  1.0
  Fe  Fe8  1  0.168  0.339  0.222  1.0
  Fe  Fe9  1  0.343  0.172  0.721  1.0
  Sb  Sb10  1  0.336  0.668  0.498  1.0
  Sb  Sb11  1  0.663  0.332  0.992  1.0
  O  O12  1  0.169  0.839  0.604  1.0
  O  O13  1  0.037  0.519  0.358  1.0
  O  O14  1  0.329  0.664  0.114  1.0
  O  O15  1  0.999  1.000  0.312  1.0
  O  O16  1  0.010  0.005  0.811  1.0
  O  O17  1  0.169  0.330  0.604  1.0
  O  O18  1  0.486  0.964  0.353  1.0
  O  O19  1  0.486  0.522  0.353  1.0
  O  O20  1  0.672  0.836  0.604  1.0
  O  O21  1  0.332  0.166  0.102  1.0
  O  O22  1  0.515  0.479  0.848  1.0
  O  O23  1  0.515  0.035  0.848  1.0
  O  O24  1  0.830  0.666  0.101  1.0
  O  O25  1  0.660  0.330  0.618  1.0
  O  O26  1  0.962  0.481  0.849  1.0
  O  O27  1  0.830  0.164  0.101  1.0
[/CIF]
.
The material described by Li4Cr3Fe3(SbO8)2 is Spinel-derived structured and crystallizes in the monoclinic Cm space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(12), one O(3), and two equivalent O(9) atoms to form LiO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with three equivalent Sb(2)O6 octahedra, and corners with four equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-60°. In the second Li site, Li(2) is bonded to one O(5), one O(8), and two equivalent O(10) atoms to form distorted LiO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with three equivalent Sb(2)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 62-65°. In the third Li site, Li(3) is bonded to one O(4), one O(7), and two equivalent O(1) atoms to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Cr(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with three equivalent Sb(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and edges with two equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 61-64°. In the fourth Li site, Li(4) is bonded to one O(11), one O(2), and two equivalent O(6) atoms to form LiO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with three equivalent Sb(1)O6 octahedra, and corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-62°. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(3), one O(4), two equivalent O(10), and two equivalent O(6) atoms to form CrO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid,  an edgeedge with one Sb(1)O6 octahedra, edges with four equivalent Fe(1)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 50°. In the second Cr site, Cr(2) is bonded to one O(1), one O(11), one O(12), one O(5), one O(7), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sb(2)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 52°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(2), one O(3), one O(4), one O(6), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid,  an edgeedge with one Sb(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 51°. In the second Fe site, Fe(2) is bonded to one O(11), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form FeO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sb(2)O6 octahedra, edges with four equivalent Cr(2)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 51°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(2), one O(7), two equivalent O(1), and two equivalent O(6) atoms to form SbO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Cr(2)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra, corners with three equivalent Li(3)O4 trigonal pyramids,  an edgeedge with one Cr(1)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the second Sb site, Sb(2) is bonded to one O(12), one O(8), two equivalent O(10), and two equivalent O(9) atoms to form SbO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Fe(2)O6 octahedra, and edges with two equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(3), one Cr(2), one Fe(2), and one Sb(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), two equivalent Fe(1), and one Sb(1) atom. In the third O site, O(3) is bonded to one Li(1), one Cr(1), and two equivalent Fe(1) atoms to form distorted OLiCrFe2 trigonal pyramids that share corners with three equivalent O(4)LiCrFe2 tetrahedra,  a cornercorner with one O(12)LiCr2Sb trigonal pyramid, and corners with two equivalent O(9)LiCrFeSb trigonal pyramids. In the fourth O site, O(4) is bonded to one Li(3), one Cr(1), and two equivalent Fe(1) atoms to form corner-sharing OLiCrFe2 tetrahedra. In the fifth O site, O(5) is bonded to one Li(2), two equivalent Cr(2), and one Fe(2) atom to form OLiCr2Fe tetrahedra that share corners with two equivalent O(12)LiCr2Sb trigonal pyramids, corners with three equivalent O(11)LiCr2Fe trigonal pyramids, and corners with four equivalent O(9)LiCrFeSb trigonal pyramids. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Cr(1), one Fe(1), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to one Li(3), two equivalent Cr(2), and one Sb(1) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Li(2), two equivalent Fe(1), and one Sb(2) atom. In the ninth O site, O(9) is bonded to one Li(1), one Cr(2), one Fe(2), and one Sb(2) atom to form distorted OLiCrFeSb trigonal pyramids that share corners with two equivalent O(5)LiCr2Fe tetrahedra,  a cornercorner with one O(12)LiCr2Sb trigonal pyramid,  a cornercorner with one O(3)LiCrFe2 trigonal pyramid,  a cornercorner with one O(9)LiCrFeSb trigonal pyramid,  an edgeedge with one O(11)LiCr2Fe trigonal pyramid,  an edgeedge with one O(12)LiCr2Sb trigonal pyramid, and  an edgeedge with one O(9)LiCrFeSb trigonal pyramid. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Li(2), one Cr(1), one Fe(1), and one Sb(2) atom. In the eleventh O site, O(11) is bonded to one Li(4), two equivalent Cr(2), and one Fe(2) atom to form distorted OLiCr2Fe trigonal pyramids that share corners with three equivalent O(5)LiCr2Fe tetrahedra,  an edgeedge with one O(12)LiCr2Sb trigonal pyramid, and edges with two equivalent O(9)LiCrFeSb trigonal pyramids. In the twelfth O site, O(12) is bonded to one Li(1), two equivalent Cr(2), and one Sb(2) atom to form distorted OLiCr2Sb trigonal pyramids that share corners with two equivalent O(5)LiCr2Fe tetrahedra,  a cornercorner with one O(3)LiCrFe2 trigonal pyramid, corners with two equivalent O(9)LiCrFeSb trigonal pyramids,  an edgeedge with one O(11)LiCr2Fe trigonal pyramid, and edges with two equivalent O(9)LiCrFeSb trigonal pyramids. is represented by the CIF file [CIF]
data_Li4Cr3Fe3(SbO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.955
_cell_length_b   5.969
_cell_length_c   9.652
_cell_angle_alpha   89.991
_cell_angle_beta   89.828
_cell_angle_gamma   120.065
_symmetry_Int_Tables_number   1
_cell_volume   296.907
_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  0.331  0.666  0.908  1.0
  Li  Li1  1  0.001  0.000  0.997  1.0
  Li  Li2  1  0.003  0.002  0.499  1.0
  Li  Li3  1  0.667  0.333  0.412  1.0
  Cr  Cr4  1  0.657  0.829  0.221  1.0
  Cr  Cr5  1  0.831  0.661  0.721  1.0
  Cr  Cr6  1  0.830  0.170  0.721  1.0
  Fe  Fe7  1  0.168  0.829  0.222  1.0
  Fe  Fe8  1  0.168  0.339  0.222  1.0
  Fe  Fe9  1  0.343  0.172  0.721  1.0
  Sb  Sb10  1  0.336  0.668  0.498  1.0
  Sb  Sb11  1  0.663  0.332  0.992  1.0
  O  O12  1  0.169  0.839  0.604  1.0
  O  O13  1  0.037  0.519  0.358  1.0
  O  O14  1  0.329  0.664  0.114  1.0
  O  O15  1  0.999  1.000  0.312  1.0
  O  O16  1  0.010  0.005  0.811  1.0
  O  O17  1  0.169  0.330  0.604  1.0
  O  O18  1  0.486  0.964  0.353  1.0
  O  O19  1  0.486  0.522  0.353  1.0
  O  O20  1  0.672  0.836  0.604  1.0
  O  O21  1  0.332  0.166  0.102  1.0
  O  O22  1  0.515  0.479  0.848  1.0
  O  O23  1  0.515  0.035  0.848  1.0
  O  O24  1  0.830  0.666  0.101  1.0
  O  O25  1  0.660  0.330  0.618  1.0
  O  O26  1  0.962  0.481  0.849  1.0
  O  O27  1  0.830  0.164  0.101  1.0
[/CIF]
.