The compound described by Li4Fe2Cu3Sb3O16 is Hausmannite-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 Sb(1)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Cu(2)O6 octahedra, and corners with four equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-62°. In the second Li site, Li(2) is bonded to one O(5), one O(7), and two equivalent O(11) atoms to form distorted LiO4 tetrahedra that share  a cornercorner with one Cu(2)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and edges with two equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-72°. In the third Li site, Li(3) is bonded in a rectangular see-saw-like geometry to one O(4), one O(8), and two equivalent O(1) atoms. In the fourth Li site, Li(4) is bonded to one O(10), one O(2), and two equivalent O(6) atoms to form LiO4 tetrahedra that share  a cornercorner with one Cu(2)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, corners with three equivalent Fe(1)O6 octahedra, and corners with four equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-65°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form distorted FeO6 octahedra that share corners with two equivalent Cu(2)O6 octahedra, corners with four equivalent Sb(2)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sb(1)O6 octahedra, and edges with two equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. In the second Fe site, Fe(2) is bonded in a 6-coordinate geometry to one O(12), one O(7), two equivalent O(11), and two equivalent O(9) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(11), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form distorted CuO6 octahedra that share  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Cu(1)O6 octahedra, edges with two equivalent Sb(1)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. In the second Cu site, Cu(2) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form CuO6 octahedra that share corners with two equivalent Fe(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, and edges with four equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles are 49°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form SbO6 octahedra that share  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with four equivalent Cu(1)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. In the second Sb site, Sb(2) is bonded to one O(1), one O(10), one O(12), one O(5), one O(8), and one O(9) atom to form SbO6 octahedra that share corners with two equivalent Fe(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, edges with two equivalent Cu(2)O6 octahedra, and edges with two equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles are 54°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Fe(1), one Cu(2), and one Sb(2) atom. In the second O site, O(2) is bonded to one Li(4), one Fe(1), and two equivalent Cu(1) atoms to form a mixture of distorted corner and edge-sharing OLiFeCu2 tetrahedra. In the third O site, O(3) is bonded to one Li(1), two equivalent Cu(1), and one Sb(1) atom to form distorted OLiCu2Sb trigonal pyramids that share corners with two equivalent O(9)LiFeCuSb tetrahedra, corners with three equivalent O(4)LiCu2Sb tetrahedra, and  an edgeedge with one O(2)LiFeCu2 tetrahedra. In the fourth O site, O(4) is bonded to one Li(3), two equivalent Cu(1), and one Sb(1) atom to form OLiCu2Sb tetrahedra that share corners with two equivalent O(2)LiFeCu2 tetrahedra and corners with three equivalent O(3)LiCu2Sb trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(2), one Cu(2), and two equivalent Sb(2) atoms to form distorted corner-sharing OLiCuSb2 trigonal pyramids. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Li(4), one Fe(1), one Cu(1), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(2), and two equivalent Cu(1) atoms. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Fe(1), and two equivalent Sb(2) atoms. In the ninth O site, O(9) is bonded to one Li(1), one Fe(2), one Cu(2), and one Sb(2) atom to form distorted OLiFeCuSb tetrahedra that share  a cornercorner with one O(9)LiFeCuSb tetrahedra,  a cornercorner with one O(3)LiCu2Sb trigonal pyramid, corners with two equivalent O(5)LiCuSb2 trigonal pyramids, and  an edgeedge with one O(9)LiFeCuSb tetrahedra. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Li(4), one Cu(2), and two equivalent Sb(2) atoms. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(2), one Cu(1), and one Sb(1) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Li(1), one Fe(2), and two equivalent Sb(2) atoms. is represented by the CIF card [CIF]
data_Li4Fe2Cu3Sb3O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.145
_cell_length_b   6.145
_cell_length_c   9.705
_cell_angle_alpha   88.321
_cell_angle_beta   88.321
_cell_angle_gamma   58.871
_symmetry_Int_Tables_number   1
_cell_volume   313.509
_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  0.671  0.671  0.899  1.0
  Li  Li1  1  0.009  0.009  0.006  1.0
  Li  Li2  1  0.020  0.020  0.485  1.0
  Li  Li3  1  0.337  0.337  0.384  1.0
  Fe  Fe4  1  0.649  0.649  0.476  1.0
  Fe  Fe5  1  0.322  0.322  0.005  1.0
  Cu  Cu6  1  0.830  0.337  0.211  1.0
  Cu  Cu7  1  0.337  0.830  0.211  1.0
  Cu  Cu8  1  0.170  0.170  0.718  1.0
  Sb  Sb9  1  0.827  0.827  0.217  1.0
  Sb  Sb10  1  0.662  0.170  0.714  1.0
  Sb  Sb11  1  0.170  0.662  0.714  1.0
  O  O12  1  0.833  0.321  0.602  1.0
  O  O13  1  0.520  0.520  0.339  1.0
  O  O14  1  0.669  0.669  0.108  1.0
  O  O15  1  0.996  0.996  0.302  1.0
  O  O16  1  0.985  0.985  0.822  1.0
  O  O17  1  0.321  0.833  0.602  1.0
  O  O18  1  0.966  0.529  0.350  1.0
  O  O19  1  0.529  0.966  0.350  1.0
  O  O20  1  0.163  0.163  0.099  1.0
  O  O21  1  0.847  0.847  0.600  1.0
  O  O22  1  0.484  0.040  0.835  1.0
  O  O23  1  0.040  0.484  0.835  1.0
  O  O24  1  0.352  0.352  0.595  1.0
  O  O25  1  0.664  0.146  0.094  1.0
  O  O26  1  0.485  0.485  0.836  1.0
  O  O27  1  0.146  0.664  0.094  1.0
[/CIF]
.
The compound described by Li4Fe2Cu3Sb3O16 is Hausmannite-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 Sb(1)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Cu(2)O6 octahedra, and corners with four equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-62°. In the second Li site, Li(2) is bonded to one O(5), one O(7), and two equivalent O(11) atoms to form distorted LiO4 tetrahedra that share  a cornercorner with one Cu(2)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and edges with two equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-72°. In the third Li site, Li(3) is bonded in a rectangular see-saw-like geometry to one O(4), one O(8), and two equivalent O(1) atoms. In the fourth Li site, Li(4) is bonded to one O(10), one O(2), and two equivalent O(6) atoms to form LiO4 tetrahedra that share  a cornercorner with one Cu(2)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, corners with three equivalent Fe(1)O6 octahedra, and corners with four equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-65°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form distorted FeO6 octahedra that share corners with two equivalent Cu(2)O6 octahedra, corners with four equivalent Sb(2)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sb(1)O6 octahedra, and edges with two equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. In the second Fe site, Fe(2) is bonded in a 6-coordinate geometry to one O(12), one O(7), two equivalent O(11), and two equivalent O(9) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(11), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form distorted CuO6 octahedra that share  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Cu(1)O6 octahedra, edges with two equivalent Sb(1)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. In the second Cu site, Cu(2) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form CuO6 octahedra that share corners with two equivalent Fe(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, and edges with four equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles are 49°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form SbO6 octahedra that share  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with four equivalent Cu(1)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. In the second Sb site, Sb(2) is bonded to one O(1), one O(10), one O(12), one O(5), one O(8), and one O(9) atom to form SbO6 octahedra that share corners with two equivalent Fe(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, edges with two equivalent Cu(2)O6 octahedra, and edges with two equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles are 54°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Fe(1), one Cu(2), and one Sb(2) atom. In the second O site, O(2) is bonded to one Li(4), one Fe(1), and two equivalent Cu(1) atoms to form a mixture of distorted corner and edge-sharing OLiFeCu2 tetrahedra. In the third O site, O(3) is bonded to one Li(1), two equivalent Cu(1), and one Sb(1) atom to form distorted OLiCu2Sb trigonal pyramids that share corners with two equivalent O(9)LiFeCuSb tetrahedra, corners with three equivalent O(4)LiCu2Sb tetrahedra, and  an edgeedge with one O(2)LiFeCu2 tetrahedra. In the fourth O site, O(4) is bonded to one Li(3), two equivalent Cu(1), and one Sb(1) atom to form OLiCu2Sb tetrahedra that share corners with two equivalent O(2)LiFeCu2 tetrahedra and corners with three equivalent O(3)LiCu2Sb trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(2), one Cu(2), and two equivalent Sb(2) atoms to form distorted corner-sharing OLiCuSb2 trigonal pyramids. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Li(4), one Fe(1), one Cu(1), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(2), and two equivalent Cu(1) atoms. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Fe(1), and two equivalent Sb(2) atoms. In the ninth O site, O(9) is bonded to one Li(1), one Fe(2), one Cu(2), and one Sb(2) atom to form distorted OLiFeCuSb tetrahedra that share  a cornercorner with one O(9)LiFeCuSb tetrahedra,  a cornercorner with one O(3)LiCu2Sb trigonal pyramid, corners with two equivalent O(5)LiCuSb2 trigonal pyramids, and  an edgeedge with one O(9)LiFeCuSb tetrahedra. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Li(4), one Cu(2), and two equivalent Sb(2) atoms. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(2), one Cu(1), and one Sb(1) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Li(1), one Fe(2), and two equivalent Sb(2) atoms. is represented by the CIF card [CIF]
data_Li4Fe2Cu3Sb3O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.145
_cell_length_b   6.145
_cell_length_c   9.705
_cell_angle_alpha   88.321
_cell_angle_beta   88.321
_cell_angle_gamma   58.871
_symmetry_Int_Tables_number   1
_cell_volume   313.509
_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  0.671  0.671  0.899  1.0
  Li  Li1  1  0.009  0.009  0.006  1.0
  Li  Li2  1  0.020  0.020  0.485  1.0
  Li  Li3  1  0.337  0.337  0.384  1.0
  Fe  Fe4  1  0.649  0.649  0.476  1.0
  Fe  Fe5  1  0.322  0.322  0.005  1.0
  Cu  Cu6  1  0.830  0.337  0.211  1.0
  Cu  Cu7  1  0.337  0.830  0.211  1.0
  Cu  Cu8  1  0.170  0.170  0.718  1.0
  Sb  Sb9  1  0.827  0.827  0.217  1.0
  Sb  Sb10  1  0.662  0.170  0.714  1.0
  Sb  Sb11  1  0.170  0.662  0.714  1.0
  O  O12  1  0.833  0.321  0.602  1.0
  O  O13  1  0.520  0.520  0.339  1.0
  O  O14  1  0.669  0.669  0.108  1.0
  O  O15  1  0.996  0.996  0.302  1.0
  O  O16  1  0.985  0.985  0.822  1.0
  O  O17  1  0.321  0.833  0.602  1.0
  O  O18  1  0.966  0.529  0.350  1.0
  O  O19  1  0.529  0.966  0.350  1.0
  O  O20  1  0.163  0.163  0.099  1.0
  O  O21  1  0.847  0.847  0.600  1.0
  O  O22  1  0.484  0.040  0.835  1.0
  O  O23  1  0.040  0.484  0.835  1.0
  O  O24  1  0.352  0.352  0.595  1.0
  O  O25  1  0.664  0.146  0.094  1.0
  O  O26  1  0.485  0.485  0.836  1.0
  O  O27  1  0.146  0.664  0.094  1.0
[/CIF]
.