The structure described by Li4Ti3Fe3(CuO8)2 is Spinel-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(11), one O(12), one O(15), and one O(3) atom to form LiO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra, corners with two equivalent Ti(3)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, and corners with three equivalent Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-62°. In the second Li site, Li(2) is bonded in a rectangular see-saw-like geometry to one O(14), one O(16), one O(5), and one O(9) atom. In the third Li site, Li(3) is bonded to one O(1), one O(10), one O(4), and one O(6) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra, corners with three equivalent Cu(1)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and  an edgeedge with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 60-64°. In the fourth Li site, Li(4) is bonded to one O(13), one O(2), one O(7), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, and corners with three equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-63°. There are three inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(14), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form TiO6 octahedra that share corners with two equivalent Cu(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 Cu(1)O6 octahedra, edges with two equivalent Ti(2)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the second Ti site, Ti(2) is bonded to one O(16), one O(2), one O(3), one O(4), one O(8), and one O(9) atom to form TiO6 octahedra that share corners with two equivalent Cu(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 Cu(1)O6 octahedra, edges with two equivalent Ti(1)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the third Ti site, Ti(3) is bonded to one O(1), one O(11), one O(12), one O(13), one O(5), and one O(6) atom to form TiO6 octahedra that share corners with two equivalent Cu(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Cu(2)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 50-51°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(14), one O(16), one O(3), one O(4), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Cu(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 Cu(1)O6 octahedra, edges with two equivalent Ti(1)O6 octahedra, and edges with two equivalent Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(15), and one O(5) atom to form FeO6 octahedra that share corners with two equivalent Cu(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Cu(2)O6 octahedra, edges with two equivalent Ti(3)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 51°. In the third Fe site, Fe(3) is bonded to one O(10), one O(12), one O(13), one O(15), one O(5), and one O(6) atom to form FeO6 octahedra that share corners with two equivalent Cu(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Cu(2)O6 octahedra, edges with two equivalent Ti(3)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 range from 51-52°. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(10), one O(2), one O(6), one O(7), and one O(8) atom to form CuO6 octahedra that share corners with two equivalent Ti(3)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra, corners with three equivalent Li(3)O4 trigonal pyramids,  an edgeedge with one Ti(1)O6 octahedra,  an edgeedge with one Ti(2)O6 octahedra, and  an edgeedge with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-52°. In the second Cu site, Cu(2) is bonded to one O(11), one O(12), one O(14), one O(15), one O(16), and one O(9) atom to form CuO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and  an edgeedge with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(3), one Ti(3), one Fe(2), and one Cu(1) atom. In the second O site, O(2) is bonded to one Li(4), one Ti(1), one Ti(2), and one Cu(1) atom to form distorted OLiTi2Cu tetrahedra that share  a cornercorner with one O(7)LiTiFeCu tetrahedra,  a cornercorner with one O(8)LiTiFeCu tetrahedra, corners with two equivalent O(4)LiTi2Fe tetrahedra,  an edgeedge with one O(7)LiTiFeCu tetrahedra, and  an edgeedge with one O(8)LiTiFeCu tetrahedra. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(1), one Ti(1), one Ti(2), and one Fe(1) atom. In the fourth O site, O(4) is bonded to one Li(3), one Ti(1), one Ti(2), and one Fe(1) atom to form distorted OLiTi2Fe tetrahedra that share corners with two equivalent O(2)LiTi2Cu tetrahedra, corners with two equivalent O(7)LiTiFeCu tetrahedra, and corners with two equivalent O(8)LiTiFeCu tetrahedra. In the fifth O site, O(5) is bonded to one Li(2), one Ti(3), one Fe(2), and one Fe(3) atom to form distorted OLiTiFe2 tetrahedra that share corners with two equivalent O(15)LiFe2Cu tetrahedra and corners with two equivalent O(11)LiTiFeCu tetrahedra. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Li(3), one Ti(3), one Fe(3), and one Cu(1) atom. In the seventh O site, O(7) is bonded to one Li(4), one Ti(1), one Fe(1), and one Cu(1) atom to form distorted OLiTiFeCu tetrahedra that share  a cornercorner with one O(2)LiTi2Cu tetrahedra,  a cornercorner with one O(8)LiTiFeCu tetrahedra, corners with two equivalent O(4)LiTi2Fe tetrahedra,  an edgeedge with one O(2)LiTi2Cu tetrahedra, and  an edgeedge with one O(8)LiTiFeCu tetrahedra. In the eighth O site, O(8) is bonded to one Li(4), one Ti(2), one Fe(1), and one Cu(1) atom to form distorted OLiTiFeCu tetrahedra that share  a cornercorner with one O(2)LiTi2Cu tetrahedra,  a cornercorner with one O(7)LiTiFeCu tetrahedra, corners with two equivalent O(4)LiTi2Fe tetrahedra,  an edgeedge with one O(2)LiTi2Cu tetrahedra, and  an edgeedge with one O(7)LiTiFeCu tetrahedra. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Ti(1), one Ti(2), and one Cu(2) atom. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Li(3), one Fe(2), one Fe(3), and one Cu(1) atom. In the eleventh O site, O(11) is bonded to one Li(1), one Ti(3), one Fe(2), and one Cu(2) atom to form distorted OLiTiFeCu tetrahedra that share  a cornercorner with one O(15)LiFe2Cu tetrahedra, corners with two equivalent O(5)LiTiFe2 tetrahedra, and  an edgeedge with one O(15)LiFe2Cu tetrahedra. In the twelfth O site, O(12) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Ti(3), one Fe(3), and one Cu(2) atom. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one Li(4), one Ti(3), one Fe(2), and one Fe(3) atom. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Li(2), one Ti(1), one Fe(1), and one Cu(2) atom. In the fifteenth O site, O(15) is bonded to one Li(1), one Fe(2), one Fe(3), and one Cu(2) atom to form distorted OLiFe2Cu tetrahedra that share  a cornercorner with one O(11)LiTiFeCu tetrahedra, corners with two equivalent O(5)LiTiFe2 tetrahedra, and  an edgeedge with one O(11)LiTiFeCu tetrahedra. In the sixteenth O site, O(16) is bonded in a rectangular see-saw-like geometry to one Li(2), one Ti(2), one Fe(1), and one Cu(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li4Ti3Fe3(CuO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.938
_cell_length_b   5.901
_cell_length_c   9.614
_cell_angle_alpha   89.983
_cell_angle_beta   90.839
_cell_angle_gamma   119.746
_symmetry_Int_Tables_number   1
_cell_volume   292.420
_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  0.335  0.666  0.896  1.0
  Li  Li1  1  0.993  0.998  0.995  1.0
  Li  Li2  1  0.998  0.998  0.496  1.0
  Li  Li3  1  0.665  0.333  0.397  1.0
  Ti  Ti4  1  0.168  0.829  0.211  1.0
  Ti  Ti5  1  0.173  0.338  0.213  1.0
  Ti  Ti6  1  0.342  0.174  0.714  1.0
  Fe  Fe7  1  0.663  0.833  0.212  1.0
  Fe  Fe8  1  0.833  0.663  0.711  1.0
  Fe  Fe9  1  0.831  0.168  0.712  1.0
  Cu  Cu10  1  0.334  0.669  0.487  1.0
  Cu  Cu11  1  0.674  0.336  0.985  1.0
  O  O12  1  0.171  0.840  0.603  1.0
  O  O13  1  0.037  0.520  0.335  1.0
  O  O14  1  0.322  0.660  0.102  1.0
  O  O15  1  0.005  0.003  0.310  1.0
  O  O16  1  0.005  0.001  0.809  1.0
  O  O17  1  0.170  0.332  0.603  1.0
  O  O18  1  0.473  0.958  0.340  1.0
  O  O19  1  0.473  0.516  0.340  1.0
  O  O20  1  0.327  0.163  0.106  1.0
  O  O21  1  0.672  0.836  0.602  1.0
  O  O22  1  0.516  0.474  0.841  1.0
  O  O23  1  0.518  0.041  0.840  1.0
  O  O24  1  0.658  0.330  0.602  1.0
  O  O25  1  0.841  0.672  0.103  1.0
  O  O26  1  0.960  0.479  0.838  1.0
  O  O27  1  0.840  0.169  0.103  1.0
[/CIF]
.
The structure described by Li4Ti3Fe3(CuO8)2 is Spinel-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(11), one O(12), one O(15), and one O(3) atom to form LiO4 tetrahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra, corners with two equivalent Ti(3)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, and corners with three equivalent Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-62°. In the second Li site, Li(2) is bonded in a rectangular see-saw-like geometry to one O(14), one O(16), one O(5), and one O(9) atom. In the third Li site, Li(3) is bonded to one O(1), one O(10), one O(4), and one O(6) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra, corners with three equivalent Cu(1)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and  an edgeedge with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 60-64°. In the fourth Li site, Li(4) is bonded to one O(13), one O(2), one O(7), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, and corners with three equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-63°. There are three inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(14), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form TiO6 octahedra that share corners with two equivalent Cu(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 Cu(1)O6 octahedra, edges with two equivalent Ti(2)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the second Ti site, Ti(2) is bonded to one O(16), one O(2), one O(3), one O(4), one O(8), and one O(9) atom to form TiO6 octahedra that share corners with two equivalent Cu(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 Cu(1)O6 octahedra, edges with two equivalent Ti(1)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the third Ti site, Ti(3) is bonded to one O(1), one O(11), one O(12), one O(13), one O(5), and one O(6) atom to form TiO6 octahedra that share corners with two equivalent Cu(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Cu(2)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 50-51°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(14), one O(16), one O(3), one O(4), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Cu(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 Cu(1)O6 octahedra, edges with two equivalent Ti(1)O6 octahedra, and edges with two equivalent Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(15), and one O(5) atom to form FeO6 octahedra that share corners with two equivalent Cu(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Cu(2)O6 octahedra, edges with two equivalent Ti(3)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 51°. In the third Fe site, Fe(3) is bonded to one O(10), one O(12), one O(13), one O(15), one O(5), and one O(6) atom to form FeO6 octahedra that share corners with two equivalent Cu(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Cu(2)O6 octahedra, edges with two equivalent Ti(3)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 range from 51-52°. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(10), one O(2), one O(6), one O(7), and one O(8) atom to form CuO6 octahedra that share corners with two equivalent Ti(3)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra, corners with three equivalent Li(3)O4 trigonal pyramids,  an edgeedge with one Ti(1)O6 octahedra,  an edgeedge with one Ti(2)O6 octahedra, and  an edgeedge with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-52°. In the second Cu site, Cu(2) is bonded to one O(11), one O(12), one O(14), one O(15), one O(16), and one O(9) atom to form CuO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and  an edgeedge with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(3), one Ti(3), one Fe(2), and one Cu(1) atom. In the second O site, O(2) is bonded to one Li(4), one Ti(1), one Ti(2), and one Cu(1) atom to form distorted OLiTi2Cu tetrahedra that share  a cornercorner with one O(7)LiTiFeCu tetrahedra,  a cornercorner with one O(8)LiTiFeCu tetrahedra, corners with two equivalent O(4)LiTi2Fe tetrahedra,  an edgeedge with one O(7)LiTiFeCu tetrahedra, and  an edgeedge with one O(8)LiTiFeCu tetrahedra. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(1), one Ti(1), one Ti(2), and one Fe(1) atom. In the fourth O site, O(4) is bonded to one Li(3), one Ti(1), one Ti(2), and one Fe(1) atom to form distorted OLiTi2Fe tetrahedra that share corners with two equivalent O(2)LiTi2Cu tetrahedra, corners with two equivalent O(7)LiTiFeCu tetrahedra, and corners with two equivalent O(8)LiTiFeCu tetrahedra. In the fifth O site, O(5) is bonded to one Li(2), one Ti(3), one Fe(2), and one Fe(3) atom to form distorted OLiTiFe2 tetrahedra that share corners with two equivalent O(15)LiFe2Cu tetrahedra and corners with two equivalent O(11)LiTiFeCu tetrahedra. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Li(3), one Ti(3), one Fe(3), and one Cu(1) atom. In the seventh O site, O(7) is bonded to one Li(4), one Ti(1), one Fe(1), and one Cu(1) atom to form distorted OLiTiFeCu tetrahedra that share  a cornercorner with one O(2)LiTi2Cu tetrahedra,  a cornercorner with one O(8)LiTiFeCu tetrahedra, corners with two equivalent O(4)LiTi2Fe tetrahedra,  an edgeedge with one O(2)LiTi2Cu tetrahedra, and  an edgeedge with one O(8)LiTiFeCu tetrahedra. In the eighth O site, O(8) is bonded to one Li(4), one Ti(2), one Fe(1), and one Cu(1) atom to form distorted OLiTiFeCu tetrahedra that share  a cornercorner with one O(2)LiTi2Cu tetrahedra,  a cornercorner with one O(7)LiTiFeCu tetrahedra, corners with two equivalent O(4)LiTi2Fe tetrahedra,  an edgeedge with one O(2)LiTi2Cu tetrahedra, and  an edgeedge with one O(7)LiTiFeCu tetrahedra. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Ti(1), one Ti(2), and one Cu(2) atom. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Li(3), one Fe(2), one Fe(3), and one Cu(1) atom. In the eleventh O site, O(11) is bonded to one Li(1), one Ti(3), one Fe(2), and one Cu(2) atom to form distorted OLiTiFeCu tetrahedra that share  a cornercorner with one O(15)LiFe2Cu tetrahedra, corners with two equivalent O(5)LiTiFe2 tetrahedra, and  an edgeedge with one O(15)LiFe2Cu tetrahedra. In the twelfth O site, O(12) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Ti(3), one Fe(3), and one Cu(2) atom. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one Li(4), one Ti(3), one Fe(2), and one Fe(3) atom. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Li(2), one Ti(1), one Fe(1), and one Cu(2) atom. In the fifteenth O site, O(15) is bonded to one Li(1), one Fe(2), one Fe(3), and one Cu(2) atom to form distorted OLiFe2Cu tetrahedra that share  a cornercorner with one O(11)LiTiFeCu tetrahedra, corners with two equivalent O(5)LiTiFe2 tetrahedra, and  an edgeedge with one O(11)LiTiFeCu tetrahedra. In the sixteenth O site, O(16) is bonded in a rectangular see-saw-like geometry to one Li(2), one Ti(2), one Fe(1), and one Cu(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li4Ti3Fe3(CuO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.938
_cell_length_b   5.901
_cell_length_c   9.614
_cell_angle_alpha   89.983
_cell_angle_beta   90.839
_cell_angle_gamma   119.746
_symmetry_Int_Tables_number   1
_cell_volume   292.420
_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  0.335  0.666  0.896  1.0
  Li  Li1  1  0.993  0.998  0.995  1.0
  Li  Li2  1  0.998  0.998  0.496  1.0
  Li  Li3  1  0.665  0.333  0.397  1.0
  Ti  Ti4  1  0.168  0.829  0.211  1.0
  Ti  Ti5  1  0.173  0.338  0.213  1.0
  Ti  Ti6  1  0.342  0.174  0.714  1.0
  Fe  Fe7  1  0.663  0.833  0.212  1.0
  Fe  Fe8  1  0.833  0.663  0.711  1.0
  Fe  Fe9  1  0.831  0.168  0.712  1.0
  Cu  Cu10  1  0.334  0.669  0.487  1.0
  Cu  Cu11  1  0.674  0.336  0.985  1.0
  O  O12  1  0.171  0.840  0.603  1.0
  O  O13  1  0.037  0.520  0.335  1.0
  O  O14  1  0.322  0.660  0.102  1.0
  O  O15  1  0.005  0.003  0.310  1.0
  O  O16  1  0.005  0.001  0.809  1.0
  O  O17  1  0.170  0.332  0.603  1.0
  O  O18  1  0.473  0.958  0.340  1.0
  O  O19  1  0.473  0.516  0.340  1.0
  O  O20  1  0.327  0.163  0.106  1.0
  O  O21  1  0.672  0.836  0.602  1.0
  O  O22  1  0.516  0.474  0.841  1.0
  O  O23  1  0.518  0.041  0.840  1.0
  O  O24  1  0.658  0.330  0.602  1.0
  O  O25  1  0.841  0.672  0.103  1.0
  O  O26  1  0.960  0.479  0.838  1.0
  O  O27  1  0.840  0.169  0.103  1.0
[/CIF]
.