The material structure described by Li4Fe3TeO12 is Ilmenite-derived structured and crystallizes in the monoclinic P2 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms to form distorted LiO6 pentagonal pyramids that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  an edgeedge with one Te(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and faces with two equivalent Li(2)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 40-60°. In the second Li site, Li(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms to form distorted LiO6 pentagonal pyramids that share corners with two equivalent Te(1)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and faces with two equivalent Li(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 46-57°. In the third Li site, Li(3) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms. In the fourth Li site, Li(4) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form distorted LiO6 pentagonal pyramids that share corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Te(1)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-56°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form FeO6 octahedra that share corners with two equivalent Te(1)O6 octahedra, corners with two equivalent Li(1)O6 pentagonal pyramids, edges with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Li(2)O6 pentagonal pyramid, and edges with two equivalent Li(4)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 48°. In the second Fe site, Fe(2) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Li(4)O6 pentagonal pyramids, corners with four equivalent Li(2)O6 pentagonal pyramids, edges with two equivalent Te(1)O6 octahedra, and edges with two equivalent Li(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 46°. In the third Fe site, Fe(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Li(1)O6 pentagonal pyramids, edges with two equivalent Fe(1)O6 octahedra,  an edgeedge with one Li(4)O6 pentagonal pyramid, and edges with two equivalent Li(2)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 46°. Te(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form TeO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Li(2)O6 pentagonal pyramids, corners with four equivalent Li(4)O6 pentagonal pyramids, edges with two equivalent Fe(2)O6 octahedra, and  an edgeedge with one Li(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles are 48°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(3), one Li(4), one Fe(1), and one Te(1) atom to form distorted OLi2FeTe trigonal pyramids that share corners with two equivalent O(2)Li2Fe2 trigonal pyramids, corners with two equivalent O(4)Li2Fe2 trigonal pyramids, corners with two equivalent O(3)Li2FeTe trigonal pyramids, corners with four equivalent O(1)Li2FeTe trigonal pyramids, and edges with two equivalent O(4)Li2Fe2 trigonal pyramids. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Fe(1), and one Fe(3) atom to form distorted OLi2Fe2 trigonal pyramids that share corners with two equivalent O(2)Li2Fe2 trigonal pyramids, corners with two equivalent O(4)Li2Fe2 trigonal pyramids, corners with two equivalent O(1)Li2FeTe trigonal pyramids, corners with two equivalent O(3)Li2FeTe trigonal pyramids,  an edgeedge with one O(2)Li2Fe2 trigonal pyramid,  an edgeedge with one O(4)Li2Fe2 trigonal pyramid, and  an edgeedge with one O(3)Li2FeTe trigonal pyramid. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Fe(2), and one Te(1) atom to form distorted OLi2FeTe trigonal pyramids that share corners with two equivalent O(2)Li2Fe2 trigonal pyramids, corners with two equivalent O(1)Li2FeTe trigonal pyramids, corners with two equivalent O(3)Li2FeTe trigonal pyramids,  an edgeedge with one O(2)Li2Fe2 trigonal pyramid, and  an edgeedge with one O(3)Li2FeTe trigonal pyramid. In the fourth O site, O(4) is bonded to one Li(3), one Li(4), one Fe(1), and one Fe(3) atom to form distorted OLi2Fe2 trigonal pyramids that share corners with two equivalent O(2)Li2Fe2 trigonal pyramids, corners with two equivalent O(4)Li2Fe2 trigonal pyramids, corners with two equivalent O(1)Li2FeTe trigonal pyramids,  an edgeedge with one O(2)Li2Fe2 trigonal pyramid,  an edgeedge with one O(4)Li2Fe2 trigonal pyramid, and edges with two equivalent O(1)Li2FeTe trigonal pyramids. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Li(3), one Li(4), one Fe(2), and one Te(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(1), one Li(2), one Fe(2), and one Fe(3) atom. is represented by the CIF file [CIF]
data_Li4Fe3TeO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.341
_cell_length_b   4.949
_cell_length_c   5.035
_cell_angle_alpha   88.974
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   207.801
_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  0.700  0.000  0.000  1.0
  Li  Li1  1  0.802  0.500  0.000  1.0
  Li  Li2  1  0.327  0.000  0.500  1.0
  Li  Li3  1  0.210  0.500  0.500  1.0
  Fe  Fe4  1  0.419  0.500  0.000  1.0
  Fe  Fe5  1  0.902  0.000  0.500  1.0
  Fe  Fe6  1  0.602  0.500  0.500  1.0
  Te  Te7  1  0.104  0.000  0.000  1.0
  O  O8  1  0.259  0.244  0.160  1.0
  O  O9  1  0.590  0.305  0.182  1.0
  O  O10  1  0.925  0.199  0.175  1.0
  O  O11  1  0.429  0.693  0.314  1.0
  O  O12  1  0.086  0.792  0.324  1.0
  O  O13  1  0.749  0.751  0.351  1.0
  O  O14  1  0.749  0.249  0.649  1.0
  O  O15  1  0.086  0.208  0.676  1.0
  O  O16  1  0.429  0.307  0.686  1.0
  O  O17  1  0.925  0.801  0.825  1.0
  O  O18  1  0.590  0.695  0.818  1.0
  O  O19  1  0.259  0.756  0.840  1.0
[/CIF]
.
The material structure described by Li4Fe3TeO12 is Ilmenite-derived structured and crystallizes in the monoclinic P2 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms to form distorted LiO6 pentagonal pyramids that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  an edgeedge with one Te(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and faces with two equivalent Li(2)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 40-60°. In the second Li site, Li(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms to form distorted LiO6 pentagonal pyramids that share corners with two equivalent Te(1)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and faces with two equivalent Li(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 46-57°. In the third Li site, Li(3) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms. In the fourth Li site, Li(4) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form distorted LiO6 pentagonal pyramids that share corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Te(1)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-56°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form FeO6 octahedra that share corners with two equivalent Te(1)O6 octahedra, corners with two equivalent Li(1)O6 pentagonal pyramids, edges with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Li(2)O6 pentagonal pyramid, and edges with two equivalent Li(4)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 48°. In the second Fe site, Fe(2) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Li(4)O6 pentagonal pyramids, corners with four equivalent Li(2)O6 pentagonal pyramids, edges with two equivalent Te(1)O6 octahedra, and edges with two equivalent Li(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 46°. In the third Fe site, Fe(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Li(1)O6 pentagonal pyramids, edges with two equivalent Fe(1)O6 octahedra,  an edgeedge with one Li(4)O6 pentagonal pyramid, and edges with two equivalent Li(2)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 46°. Te(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form TeO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Li(2)O6 pentagonal pyramids, corners with four equivalent Li(4)O6 pentagonal pyramids, edges with two equivalent Fe(2)O6 octahedra, and  an edgeedge with one Li(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles are 48°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(3), one Li(4), one Fe(1), and one Te(1) atom to form distorted OLi2FeTe trigonal pyramids that share corners with two equivalent O(2)Li2Fe2 trigonal pyramids, corners with two equivalent O(4)Li2Fe2 trigonal pyramids, corners with two equivalent O(3)Li2FeTe trigonal pyramids, corners with four equivalent O(1)Li2FeTe trigonal pyramids, and edges with two equivalent O(4)Li2Fe2 trigonal pyramids. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Fe(1), and one Fe(3) atom to form distorted OLi2Fe2 trigonal pyramids that share corners with two equivalent O(2)Li2Fe2 trigonal pyramids, corners with two equivalent O(4)Li2Fe2 trigonal pyramids, corners with two equivalent O(1)Li2FeTe trigonal pyramids, corners with two equivalent O(3)Li2FeTe trigonal pyramids,  an edgeedge with one O(2)Li2Fe2 trigonal pyramid,  an edgeedge with one O(4)Li2Fe2 trigonal pyramid, and  an edgeedge with one O(3)Li2FeTe trigonal pyramid. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Fe(2), and one Te(1) atom to form distorted OLi2FeTe trigonal pyramids that share corners with two equivalent O(2)Li2Fe2 trigonal pyramids, corners with two equivalent O(1)Li2FeTe trigonal pyramids, corners with two equivalent O(3)Li2FeTe trigonal pyramids,  an edgeedge with one O(2)Li2Fe2 trigonal pyramid, and  an edgeedge with one O(3)Li2FeTe trigonal pyramid. In the fourth O site, O(4) is bonded to one Li(3), one Li(4), one Fe(1), and one Fe(3) atom to form distorted OLi2Fe2 trigonal pyramids that share corners with two equivalent O(2)Li2Fe2 trigonal pyramids, corners with two equivalent O(4)Li2Fe2 trigonal pyramids, corners with two equivalent O(1)Li2FeTe trigonal pyramids,  an edgeedge with one O(2)Li2Fe2 trigonal pyramid,  an edgeedge with one O(4)Li2Fe2 trigonal pyramid, and edges with two equivalent O(1)Li2FeTe trigonal pyramids. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Li(3), one Li(4), one Fe(2), and one Te(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(1), one Li(2), one Fe(2), and one Fe(3) atom. is represented by the CIF file [CIF]
data_Li4Fe3TeO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.341
_cell_length_b   4.949
_cell_length_c   5.035
_cell_angle_alpha   88.974
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   207.801
_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  0.700  0.000  0.000  1.0
  Li  Li1  1  0.802  0.500  0.000  1.0
  Li  Li2  1  0.327  0.000  0.500  1.0
  Li  Li3  1  0.210  0.500  0.500  1.0
  Fe  Fe4  1  0.419  0.500  0.000  1.0
  Fe  Fe5  1  0.902  0.000  0.500  1.0
  Fe  Fe6  1  0.602  0.500  0.500  1.0
  Te  Te7  1  0.104  0.000  0.000  1.0
  O  O8  1  0.259  0.244  0.160  1.0
  O  O9  1  0.590  0.305  0.182  1.0
  O  O10  1  0.925  0.199  0.175  1.0
  O  O11  1  0.429  0.693  0.314  1.0
  O  O12  1  0.086  0.792  0.324  1.0
  O  O13  1  0.749  0.751  0.351  1.0
  O  O14  1  0.749  0.249  0.649  1.0
  O  O15  1  0.086  0.208  0.676  1.0
  O  O16  1  0.429  0.307  0.686  1.0
  O  O17  1  0.925  0.801  0.825  1.0
  O  O18  1  0.590  0.695  0.818  1.0
  O  O19  1  0.259  0.756  0.840  1.0
[/CIF]
.