The material described by Li2Fe3TeO8 is Spinel-derived structured and crystallizes in the triclinic P-1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(4), one O(6), and one O(7) atom to form LiO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra, corners with three equivalent Fe(4)O6 octahedra, and corners with three equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-64°. In the second Li site, Li(2) is bonded to one O(2), one O(3), one O(5), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with three equivalent Fe(4)O6 octahedra, and corners with three equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-64°. There are five inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(8) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, edges with two equivalent Fe(3)O6 octahedra, edges with two equivalent Fe(4)O6 octahedra, and edges with two equivalent Te(1)O6 octahedra. In the second Fe site, Fe(2) is bonded to two equivalent O(1), two equivalent O(5), and two equivalent O(7) atoms to form FeO6 octahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, edges with two equivalent Fe(4)O6 octahedra, edges with two equivalent Fe(5)O6 octahedra, and edges with two equivalent Te(1)O6 octahedra. In the third Fe site, Fe(3) is bonded to two equivalent O(2), two equivalent O(6), and two equivalent O(8) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Fe(4)O6 octahedra, and edges with two equivalent Te(1)O6 octahedra. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form FeO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra, and edges with two equivalent Te(1)O6 octahedra. In the fifth Fe site, Fe(5) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(7) atoms to form FeO6 octahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(4)O6 octahedra, and edges with two equivalent Te(1)O6 octahedra. Te(1) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form TeO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra, and edges with two equivalent Fe(4)O6 octahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Fe(2), one Fe(4), and one Fe(5) atom to form distorted corner-sharing OLiFe3 tetrahedra. In the second O site, O(2) is bonded to one Li(2), one Fe(1), one Fe(3), and one Fe(4) atom to form distorted corner-sharing OLiFe3 tetrahedra. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(4), one Fe(5), and one Te(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(1), one Fe(4), and one Te(1) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(2), one Fe(4), and one Te(1) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(3), one Fe(4), and one Te(1) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(2), one Fe(5), and one Te(1) atom. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(1), one Fe(3), and one Te(1) atom. is represented by the CIF card [CIF]
data_Li2Fe3TeO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.082
_cell_length_b   6.135
_cell_length_c   8.695
_cell_angle_alpha   88.172
_cell_angle_beta   89.928
_cell_angle_gamma   90.016
_symmetry_Int_Tables_number   1
_cell_volume   324.266
_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  1.000  0.277  0.142  1.0
  Li  Li1  1  0.500  0.776  0.642  1.0
  Li  Li2  1  0.000  0.724  0.858  1.0
  Li  Li3  1  0.500  0.223  0.358  1.0
  Fe  Fe4  1  0.750  0.250  0.750  1.0
  Fe  Fe5  1  0.750  0.750  0.250  1.0
  Fe  Fe6  1  0.250  0.250  0.750  1.0
  Fe  Fe7  1  0.003  0.501  0.500  1.0
  Fe  Fe8  1  0.497  0.999  1.000  1.0
  Fe  Fe9  1  0.250  0.750  0.250  1.0
  Te  Te10  1  0.995  0.001  0.500  1.0
  Te  Te11  1  0.505  0.499  0.000  1.0
  O  O12  1  0.990  0.537  0.274  1.0
  O  O13  1  0.509  0.036  0.774  1.0
  O  O14  1  0.992  0.464  0.726  1.0
  O  O15  1  0.510  0.963  0.226  1.0
  O  O16  1  0.215  0.767  0.503  1.0
  O  O17  1  0.730  0.264  0.993  1.0
  O  O18  1  0.770  0.765  0.494  1.0
  O  O19  1  0.284  0.266  0.004  1.0
  O  O20  1  0.988  0.995  0.275  1.0
  O  O21  1  0.512  0.494  0.775  1.0
  O  O22  1  0.988  0.006  0.725  1.0
  O  O23  1  0.512  0.505  0.225  1.0
  O  O24  1  0.216  0.234  0.496  1.0
  O  O25  1  0.730  0.735  0.006  1.0
  O  O26  1  0.770  0.236  0.507  1.0
  O  O27  1  0.284  0.733  0.997  1.0
[/CIF]
.
The material described by Li2Fe3TeO8 is Spinel-derived structured and crystallizes in the triclinic P-1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(4), one O(6), and one O(7) atom to form LiO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra, corners with three equivalent Fe(4)O6 octahedra, and corners with three equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-64°. In the second Li site, Li(2) is bonded to one O(2), one O(3), one O(5), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with three equivalent Fe(4)O6 octahedra, and corners with three equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-64°. There are five inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(8) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, edges with two equivalent Fe(3)O6 octahedra, edges with two equivalent Fe(4)O6 octahedra, and edges with two equivalent Te(1)O6 octahedra. In the second Fe site, Fe(2) is bonded to two equivalent O(1), two equivalent O(5), and two equivalent O(7) atoms to form FeO6 octahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, edges with two equivalent Fe(4)O6 octahedra, edges with two equivalent Fe(5)O6 octahedra, and edges with two equivalent Te(1)O6 octahedra. In the third Fe site, Fe(3) is bonded to two equivalent O(2), two equivalent O(6), and two equivalent O(8) atoms to form FeO6 octahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Fe(4)O6 octahedra, and edges with two equivalent Te(1)O6 octahedra. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form FeO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra, and edges with two equivalent Te(1)O6 octahedra. In the fifth Fe site, Fe(5) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(7) atoms to form FeO6 octahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(4)O6 octahedra, and edges with two equivalent Te(1)O6 octahedra. Te(1) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form TeO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra, and edges with two equivalent Fe(4)O6 octahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Fe(2), one Fe(4), and one Fe(5) atom to form distorted corner-sharing OLiFe3 tetrahedra. In the second O site, O(2) is bonded to one Li(2), one Fe(1), one Fe(3), and one Fe(4) atom to form distorted corner-sharing OLiFe3 tetrahedra. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(4), one Fe(5), and one Te(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(1), one Fe(4), and one Te(1) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(2), one Fe(4), and one Te(1) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(3), one Fe(4), and one Te(1) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(2), one Fe(5), and one Te(1) atom. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(1), one Fe(3), and one Te(1) atom. is represented by the CIF card [CIF]
data_Li2Fe3TeO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.082
_cell_length_b   6.135
_cell_length_c   8.695
_cell_angle_alpha   88.172
_cell_angle_beta   89.928
_cell_angle_gamma   90.016
_symmetry_Int_Tables_number   1
_cell_volume   324.266
_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  1.000  0.277  0.142  1.0
  Li  Li1  1  0.500  0.776  0.642  1.0
  Li  Li2  1  0.000  0.724  0.858  1.0
  Li  Li3  1  0.500  0.223  0.358  1.0
  Fe  Fe4  1  0.750  0.250  0.750  1.0
  Fe  Fe5  1  0.750  0.750  0.250  1.0
  Fe  Fe6  1  0.250  0.250  0.750  1.0
  Fe  Fe7  1  0.003  0.501  0.500  1.0
  Fe  Fe8  1  0.497  0.999  1.000  1.0
  Fe  Fe9  1  0.250  0.750  0.250  1.0
  Te  Te10  1  0.995  0.001  0.500  1.0
  Te  Te11  1  0.505  0.499  0.000  1.0
  O  O12  1  0.990  0.537  0.274  1.0
  O  O13  1  0.509  0.036  0.774  1.0
  O  O14  1  0.992  0.464  0.726  1.0
  O  O15  1  0.510  0.963  0.226  1.0
  O  O16  1  0.215  0.767  0.503  1.0
  O  O17  1  0.730  0.264  0.993  1.0
  O  O18  1  0.770  0.765  0.494  1.0
  O  O19  1  0.284  0.266  0.004  1.0
  O  O20  1  0.988  0.995  0.275  1.0
  O  O21  1  0.512  0.494  0.775  1.0
  O  O22  1  0.988  0.006  0.725  1.0
  O  O23  1  0.512  0.505  0.225  1.0
  O  O24  1  0.216  0.234  0.496  1.0
  O  O25  1  0.730  0.735  0.006  1.0
  O  O26  1  0.770  0.236  0.507  1.0
  O  O27  1  0.284  0.733  0.997  1.0
[/CIF]
.