The compound described by Li4Fe3Cu3(SnO8)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 Fe(1)O6 octahedra,  a cornercorner with one Cu(1)O6 octahedra,  a cornercorner with one Cu(2)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Cu(3)O6 octahedra, and corners with three equivalent Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-61°. In the second Li site, Li(2) is bonded to one O(14), one O(16), one O(5), and one O(9) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Cu(3)O6 octahedra, corners with three equivalent Sn(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra, and  an edgeedge with one Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 59-65°. In the third Li site, Li(3) is bonded in a rectangular see-saw-like geometry to one O(1), one O(10), one O(4), and one O(6) atom. 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 Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Cu(3)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Cu(2)O6 octahedra, and corners with three equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-63°. 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 Sn(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, edges with two equivalent Cu(1)O6 octahedra, edges with two equivalent Cu(2)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 50-53°. 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 Sn(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Sn(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with two equivalent Cu(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. 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 Sn(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Sn(2)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with two equivalent Cu(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. There are three inequivalent Cu sites. In the first Cu site, Cu(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 CuO6 octahedra that share corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Cu(2)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 52-53°. In the second Cu site, Cu(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 CuO6 octahedra that share corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Cu(1)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 52-55°. In the third Cu site, Cu(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 CuO6 octahedra that share corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Sn(2)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with two equivalent Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-54°. There are two inequivalent Sn sites. In the first Sn site, Sn(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 SnO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Cu(3)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra, and  an edgeedge with one Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. In the second Sn site, Sn(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 SnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Cu(2)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 trigonal pyramids,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and  an edgeedge with one Cu(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-55°. 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 Fe(2), one Cu(3), and one Sn(1) atom. In the second O site, O(2) is bonded to one Li(4), one Cu(1), one Cu(2), and one Sn(1) atom to form distorted OLiCu2Sn trigonal pyramids that share corners with two equivalent O(4)LiFeCu2 tetrahedra,  a cornercorner with one O(7)LiFeCuSn trigonal pyramid,  an edgeedge with one O(3)LiFeCu2 trigonal pyramid, and  an edgeedge with one O(7)LiFeCuSn trigonal pyramid. In the third O site, O(3) is bonded to one Li(1), one Fe(1), one Cu(1), and one Cu(2) atom to form distorted OLiFeCu2 trigonal pyramids that share  a cornercorner with one O(15)LiFe2Sn tetrahedra, corners with three equivalent O(4)LiFeCu2 tetrahedra,  a cornercorner with one O(12)LiFeCuSn trigonal pyramid,  an edgeedge with one O(2)LiCu2Sn trigonal pyramid, and  an edgeedge with one O(7)LiFeCuSn trigonal pyramid. In the fourth O site, O(4) is bonded to one Li(3), one Fe(1), one Cu(1), and one Cu(2) atom to form OLiFeCu2 tetrahedra that share corners with two equivalent O(2)LiCu2Sn trigonal pyramids, corners with two equivalent O(7)LiFeCuSn trigonal pyramids, and corners with three equivalent O(3)LiFeCu2 trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(2), one Fe(2), one Fe(3), and one Cu(3) atom to form distorted OLiFe2Cu tetrahedra that share corners with two equivalent O(15)LiFe2Sn tetrahedra and corners with two equivalent O(12)LiFeCuSn trigonal pyramids. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Li(3), one Fe(3), one Cu(3), and one Sn(1) atom. In the seventh O site, O(7) is bonded to one Li(4), one Fe(1), one Cu(1), and one Sn(1) atom to form distorted OLiFeCuSn trigonal pyramids that share corners with two equivalent O(4)LiFeCu2 tetrahedra,  a cornercorner with one O(2)LiCu2Sn trigonal pyramid,  an edgeedge with one O(2)LiCu2Sn trigonal pyramid, and  an edgeedge with one O(3)LiFeCu2 trigonal pyramid. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Fe(1), one Cu(2), and one Sn(1) atom. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Li(2), one Cu(1), one Cu(2), and one Sn(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 Sn(1) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(2), one Cu(3), and one Sn(2) atom. In the twelfth O site, O(12) is bonded to one Li(1), one Fe(3), one Cu(3), and one Sn(2) atom to form distorted OLiFeCuSn trigonal pyramids that share  a cornercorner with one O(15)LiFe2Sn tetrahedra, corners with two equivalent O(5)LiFe2Cu tetrahedra,  a cornercorner with one O(3)LiFeCu2 trigonal pyramid, and  an edgeedge with one O(15)LiFe2Sn tetrahedra. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one Li(4), one Fe(2), one Fe(3), and one Cu(3) atom. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Li(2), one Fe(1), one Cu(1), and one Sn(2) atom. In the fifteenth O site, O(15) is bonded to one Li(1), one Fe(2), one Fe(3), and one Sn(2) atom to form distorted OLiFe2Sn tetrahedra that share corners with two equivalent O(5)LiFe2Cu tetrahedra,  a cornercorner with one O(3)LiFeCu2 trigonal pyramid,  a cornercorner with one O(12)LiFeCuSn trigonal pyramid, and  an edgeedge with one O(12)LiFeCuSn trigonal pyramid. In the sixteenth O site, O(16) is bonded in a rectangular see-saw-like geometry to one Li(2), one Fe(1), one Cu(2), and one Sn(2) atom. is represented by the CIF card [CIF]
data_Li4Fe3Cu3(SnO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.957
_cell_length_b   5.986
_cell_length_c   9.773
_cell_angle_alpha   89.969
_cell_angle_beta   90.271
_cell_angle_gamma   119.859
_symmetry_Int_Tables_number   1
_cell_volume   302.221
_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  0.318  0.660  0.898  1.0
  Li  Li1  1  0.004  0.003  0.994  1.0
  Li  Li2  1  0.014  0.007  0.492  1.0
  Li  Li3  1  0.661  0.327  0.396  1.0
  Fe  Fe4  1  0.661  0.832  0.214  1.0
  Fe  Fe5  1  0.832  0.662  0.714  1.0
  Fe  Fe6  1  0.832  0.170  0.715  1.0
  Cu  Cu7  1  0.169  0.830  0.215  1.0
  Cu  Cu8  1  0.172  0.340  0.215  1.0
  Cu  Cu9  1  0.340  0.171  0.714  1.0
  Sn  Sn10  1  0.340  0.668  0.491  1.0
  Sn  Sn11  1  0.666  0.336  0.990  1.0
  O  O12  1  0.155  0.829  0.597  1.0
  O  O13  1  0.034  0.510  0.339  1.0
  O  O14  1  0.321  0.660  0.113  1.0
  O  O15  1  0.014  0.008  0.303  1.0
  O  O16  1  0.019  0.009  0.806  1.0
  O  O17  1  0.161  0.321  0.599  1.0
  O  O18  1  0.479  0.966  0.339  1.0
  O  O19  1  0.493  0.522  0.341  1.0
  O  O20  1  0.319  0.164  0.099  1.0
  O  O21  1  0.684  0.843  0.598  1.0
  O  O22  1  0.517  0.491  0.842  1.0
  O  O23  1  0.510  0.032  0.839  1.0
  O  O24  1  0.651  0.325  0.609  1.0
  O  O25  1  0.842  0.682  0.100  1.0
  O  O26  1  0.962  0.480  0.840  1.0
  O  O27  1  0.830  0.153  0.097  1.0
[/CIF]
.
The compound described by Li4Fe3Cu3(SnO8)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 Fe(1)O6 octahedra,  a cornercorner with one Cu(1)O6 octahedra,  a cornercorner with one Cu(2)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Cu(3)O6 octahedra, and corners with three equivalent Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-61°. In the second Li site, Li(2) is bonded to one O(14), one O(16), one O(5), and one O(9) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Cu(3)O6 octahedra, corners with three equivalent Sn(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra, and  an edgeedge with one Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 59-65°. In the third Li site, Li(3) is bonded in a rectangular see-saw-like geometry to one O(1), one O(10), one O(4), and one O(6) atom. 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 Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Cu(3)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Cu(2)O6 octahedra, and corners with three equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-63°. 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 Sn(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, edges with two equivalent Cu(1)O6 octahedra, edges with two equivalent Cu(2)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 50-53°. 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 Sn(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Sn(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with two equivalent Cu(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. 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 Sn(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Sn(2)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with two equivalent Cu(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. There are three inequivalent Cu sites. In the first Cu site, Cu(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 CuO6 octahedra that share corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Cu(2)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 52-53°. In the second Cu site, Cu(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 CuO6 octahedra that share corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Cu(1)O6 octahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 52-55°. In the third Cu site, Cu(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 CuO6 octahedra that share corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid,  an edgeedge with one Sn(2)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with two equivalent Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-54°. There are two inequivalent Sn sites. In the first Sn site, Sn(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 SnO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Cu(3)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra, and  an edgeedge with one Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. In the second Sn site, Sn(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 SnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Cu(2)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 trigonal pyramids,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and  an edgeedge with one Cu(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-55°. 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 Fe(2), one Cu(3), and one Sn(1) atom. In the second O site, O(2) is bonded to one Li(4), one Cu(1), one Cu(2), and one Sn(1) atom to form distorted OLiCu2Sn trigonal pyramids that share corners with two equivalent O(4)LiFeCu2 tetrahedra,  a cornercorner with one O(7)LiFeCuSn trigonal pyramid,  an edgeedge with one O(3)LiFeCu2 trigonal pyramid, and  an edgeedge with one O(7)LiFeCuSn trigonal pyramid. In the third O site, O(3) is bonded to one Li(1), one Fe(1), one Cu(1), and one Cu(2) atom to form distorted OLiFeCu2 trigonal pyramids that share  a cornercorner with one O(15)LiFe2Sn tetrahedra, corners with three equivalent O(4)LiFeCu2 tetrahedra,  a cornercorner with one O(12)LiFeCuSn trigonal pyramid,  an edgeedge with one O(2)LiCu2Sn trigonal pyramid, and  an edgeedge with one O(7)LiFeCuSn trigonal pyramid. In the fourth O site, O(4) is bonded to one Li(3), one Fe(1), one Cu(1), and one Cu(2) atom to form OLiFeCu2 tetrahedra that share corners with two equivalent O(2)LiCu2Sn trigonal pyramids, corners with two equivalent O(7)LiFeCuSn trigonal pyramids, and corners with three equivalent O(3)LiFeCu2 trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(2), one Fe(2), one Fe(3), and one Cu(3) atom to form distorted OLiFe2Cu tetrahedra that share corners with two equivalent O(15)LiFe2Sn tetrahedra and corners with two equivalent O(12)LiFeCuSn trigonal pyramids. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Li(3), one Fe(3), one Cu(3), and one Sn(1) atom. In the seventh O site, O(7) is bonded to one Li(4), one Fe(1), one Cu(1), and one Sn(1) atom to form distorted OLiFeCuSn trigonal pyramids that share corners with two equivalent O(4)LiFeCu2 tetrahedra,  a cornercorner with one O(2)LiCu2Sn trigonal pyramid,  an edgeedge with one O(2)LiCu2Sn trigonal pyramid, and  an edgeedge with one O(3)LiFeCu2 trigonal pyramid. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Fe(1), one Cu(2), and one Sn(1) atom. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Li(2), one Cu(1), one Cu(2), and one Sn(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 Sn(1) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(2), one Cu(3), and one Sn(2) atom. In the twelfth O site, O(12) is bonded to one Li(1), one Fe(3), one Cu(3), and one Sn(2) atom to form distorted OLiFeCuSn trigonal pyramids that share  a cornercorner with one O(15)LiFe2Sn tetrahedra, corners with two equivalent O(5)LiFe2Cu tetrahedra,  a cornercorner with one O(3)LiFeCu2 trigonal pyramid, and  an edgeedge with one O(15)LiFe2Sn tetrahedra. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one Li(4), one Fe(2), one Fe(3), and one Cu(3) atom. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Li(2), one Fe(1), one Cu(1), and one Sn(2) atom. In the fifteenth O site, O(15) is bonded to one Li(1), one Fe(2), one Fe(3), and one Sn(2) atom to form distorted OLiFe2Sn tetrahedra that share corners with two equivalent O(5)LiFe2Cu tetrahedra,  a cornercorner with one O(3)LiFeCu2 trigonal pyramid,  a cornercorner with one O(12)LiFeCuSn trigonal pyramid, and  an edgeedge with one O(12)LiFeCuSn trigonal pyramid. In the sixteenth O site, O(16) is bonded in a rectangular see-saw-like geometry to one Li(2), one Fe(1), one Cu(2), and one Sn(2) atom. is represented by the CIF card [CIF]
data_Li4Fe3Cu3(SnO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.957
_cell_length_b   5.986
_cell_length_c   9.773
_cell_angle_alpha   89.969
_cell_angle_beta   90.271
_cell_angle_gamma   119.859
_symmetry_Int_Tables_number   1
_cell_volume   302.221
_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  0.318  0.660  0.898  1.0
  Li  Li1  1  0.004  0.003  0.994  1.0
  Li  Li2  1  0.014  0.007  0.492  1.0
  Li  Li3  1  0.661  0.327  0.396  1.0
  Fe  Fe4  1  0.661  0.832  0.214  1.0
  Fe  Fe5  1  0.832  0.662  0.714  1.0
  Fe  Fe6  1  0.832  0.170  0.715  1.0
  Cu  Cu7  1  0.169  0.830  0.215  1.0
  Cu  Cu8  1  0.172  0.340  0.215  1.0
  Cu  Cu9  1  0.340  0.171  0.714  1.0
  Sn  Sn10  1  0.340  0.668  0.491  1.0
  Sn  Sn11  1  0.666  0.336  0.990  1.0
  O  O12  1  0.155  0.829  0.597  1.0
  O  O13  1  0.034  0.510  0.339  1.0
  O  O14  1  0.321  0.660  0.113  1.0
  O  O15  1  0.014  0.008  0.303  1.0
  O  O16  1  0.019  0.009  0.806  1.0
  O  O17  1  0.161  0.321  0.599  1.0
  O  O18  1  0.479  0.966  0.339  1.0
  O  O19  1  0.493  0.522  0.341  1.0
  O  O20  1  0.319  0.164  0.099  1.0
  O  O21  1  0.684  0.843  0.598  1.0
  O  O22  1  0.517  0.491  0.842  1.0
  O  O23  1  0.510  0.032  0.839  1.0
  O  O24  1  0.651  0.325  0.609  1.0
  O  O25  1  0.842  0.682  0.100  1.0
  O  O26  1  0.962  0.480  0.840  1.0
  O  O27  1  0.830  0.153  0.097  1.0
[/CIF]
.