The compound described by Li8Cr(FeO4)3 is Caswellsilverite-derived structured and crystallizes in the monoclinic P2 space group. There are eight 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 LiO6 octahedra that share corners with two equivalent Li(4)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Li(7)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Li(5)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and faces with two equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-52°. In the second Li site, Li(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form LiO6 octahedra that share corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, corners with four equivalent Li(8)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Li(5)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, and faces with two equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-51°. In the third Li site, Li(3) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Li(5)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra, edges with two equivalent Li(7)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and faces with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-52°. In the fourth Li site, Li(4) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Li(2)O6 octahedra, corners with four equivalent Li(6)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra, edges with two equivalent Li(7)O6 octahedra, edges with two equivalent Li(8)O6 octahedra, and faces with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-52°. In the fifth Li site, Li(5) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent Li(7)O6 octahedra, corners with two equivalent Li(8)O6 octahedra, corners with four equivalent Li(3)O6 octahedra, corners with four equivalent Cr(1)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-51°. In the sixth Li site, Li(6) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with two equivalent Li(7)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with four equivalent Li(4)O6 octahedra, corners with four equivalent Cr(1)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Li(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-51°. In the seventh Li site, Li(7) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent Li(5)O6 octahedra, corners with two equivalent Li(6)O6 octahedra, corners with four equivalent Li(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra,  an edgeedge with one Li(8)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-51°. In the eighth Li site, Li(8) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with two equivalent Li(5)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Li(2)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and faces with two equivalent Li(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-52°. Cr(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form CrO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Li(5)O6 octahedra, corners with four equivalent Li(6)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra, edges with two equivalent Li(8)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and faces with two equivalent Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-50°. 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(5) atoms to form FeO6 octahedra that share corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Li(7)O6 octahedra, corners with four equivalent Li(8)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and faces with two equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-52°. In the second Fe site, Fe(2) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Li(8)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with four equivalent Li(3)O6 octahedra, corners with four equivalent Li(4)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Li(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-51°. In the third Fe site, Fe(3) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Li(6)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Li(1)O6 octahedra, corners with four equivalent Li(2)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Li(8)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and faces with two equivalent Li(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-51°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(2), one Li(4), one Li(6), one Li(8), one Cr(1), and one Fe(1) atom to form distorted OLi4CrFe pentagonal pyramids that share corners with two equivalent O(1)Li4CrFe pentagonal pyramids, corners with two equivalent O(2)Li4Fe2 pentagonal pyramids,  an edgeedge with one O(2)Li4Fe2 pentagonal pyramid, edges with two equivalent O(1)Li4CrFe pentagonal pyramids, edges with four equivalent O(4)Li4CrFe pentagonal pyramids, and edges with four equivalent O(5)Li4Fe2 pentagonal pyramids. In the second O site, O(2) is bonded to one Li(1), one Li(3), one Li(4), one Li(7), one Fe(1), and one Fe(2) atom to form distorted OLi4Fe2 pentagonal pyramids that share corners with two equivalent O(1)Li4CrFe pentagonal pyramids, corners with two equivalent O(2)Li4Fe2 pentagonal pyramids,  an edgeedge with one O(1)Li4CrFe pentagonal pyramid, edges with two equivalent O(2)Li4Fe2 pentagonal pyramids, edges with four equivalent O(5)Li4Fe2 pentagonal pyramids, and edges with four equivalent O(6)Li4Fe2 pentagonal pyramids. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Li(1), one Li(2), one Li(3), one Li(5), one Cr(1), and one Fe(3) atom. In the fourth O site, O(4) is bonded to one Li(2), one Li(5), one Li(6), one Li(8), one Cr(1), and one Fe(3) atom to form distorted OLi4CrFe pentagonal pyramids that share corners with two equivalent O(4)Li4CrFe pentagonal pyramids, corners with two equivalent O(5)Li4Fe2 pentagonal pyramids, corners with two equivalent O(6)Li4Fe2 pentagonal pyramids,  an edgeedge with one O(5)Li4Fe2 pentagonal pyramid,  an edgeedge with one O(6)Li4Fe2 pentagonal pyramid, edges with two equivalent O(4)Li4CrFe pentagonal pyramids, and edges with four equivalent O(1)Li4CrFe pentagonal pyramids. In the fifth O site, O(5) is bonded to one Li(4), one Li(6), one Li(7), one Li(8), one Fe(1), and one Fe(2) atom to form distorted OLi4Fe2 pentagonal pyramids that share corners with two equivalent O(4)Li4CrFe pentagonal pyramids, corners with two equivalent O(5)Li4Fe2 pentagonal pyramids, corners with two equivalent O(6)Li4Fe2 pentagonal pyramids,  an edgeedge with one O(4)Li4CrFe pentagonal pyramid,  an edgeedge with one O(6)Li4Fe2 pentagonal pyramid, edges with two equivalent O(5)Li4Fe2 pentagonal pyramids, edges with four equivalent O(1)Li4CrFe pentagonal pyramids, and edges with four equivalent O(2)Li4Fe2 pentagonal pyramids. In the sixth O site, O(6) is bonded to one Li(1), one Li(3), one Li(5), one Li(7), one Fe(2), and one Fe(3) atom to form distorted OLi4Fe2 pentagonal pyramids that share corners with two equivalent O(4)Li4CrFe pentagonal pyramids, corners with two equivalent O(5)Li4Fe2 pentagonal pyramids, corners with two equivalent O(6)Li4Fe2 pentagonal pyramids,  an edgeedge with one O(4)Li4CrFe pentagonal pyramid,  an edgeedge with one O(5)Li4Fe2 pentagonal pyramid, edges with two equivalent O(6)Li4Fe2 pentagonal pyramids, and edges with four equivalent O(2)Li4Fe2 pentagonal pyramids. is represented by the CIF card [CIF]
data_Li8Cr(FeO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.531
_cell_length_b   4.957
_cell_length_c   4.997
_cell_angle_alpha   89.769
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   211.311
_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  0.767  0.000  0.500  1.0
  Li  Li1  1  0.080  0.000  0.500  1.0
  Li  Li2  1  0.745  0.000  0.000  1.0
  Li  Li3  1  0.433  0.000  0.000  1.0
  Li  Li4  1  0.933  0.500  0.500  1.0
  Li  Li5  1  0.244  0.500  0.500  1.0
  Li  Li6  1  0.582  0.500  0.000  1.0
  Li  Li7  1  0.269  0.500  0.000  1.0
  Cr  Cr8  1  0.097  0.000  0.000  1.0
  Fe  Fe9  1  0.415  0.000  0.500  1.0
  Fe  Fe10  1  0.599  0.500  0.500  1.0
  Fe  Fe11  1  0.916  0.500  0.000  1.0
  O  O12  1  0.252  0.148  0.758  1.0
  O  O13  1  0.585  0.182  0.720  1.0
  O  O14  1  0.933  0.174  0.785  1.0
  O  O15  1  0.083  0.323  0.220  1.0
  O  O16  1  0.430  0.321  0.281  1.0
  O  O17  1  0.758  0.353  0.251  1.0
  O  O18  1  0.758  0.647  0.749  1.0
  O  O19  1  0.430  0.679  0.719  1.0
  O  O20  1  0.083  0.677  0.780  1.0
  O  O21  1  0.933  0.826  0.215  1.0
  O  O22  1  0.585  0.818  0.280  1.0
  O  O23  1  0.252  0.852  0.242  1.0
[/CIF]
.
The compound described by Li8Cr(FeO4)3 is Caswellsilverite-derived structured and crystallizes in the monoclinic P2 space group. There are eight 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 LiO6 octahedra that share corners with two equivalent Li(4)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Li(7)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Li(5)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and faces with two equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-52°. In the second Li site, Li(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form LiO6 octahedra that share corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, corners with four equivalent Li(8)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Li(5)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, and faces with two equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-51°. In the third Li site, Li(3) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Li(5)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra, edges with two equivalent Li(7)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and faces with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-52°. In the fourth Li site, Li(4) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Li(2)O6 octahedra, corners with four equivalent Li(6)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra, edges with two equivalent Li(7)O6 octahedra, edges with two equivalent Li(8)O6 octahedra, and faces with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-52°. In the fifth Li site, Li(5) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent Li(7)O6 octahedra, corners with two equivalent Li(8)O6 octahedra, corners with four equivalent Li(3)O6 octahedra, corners with four equivalent Cr(1)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-51°. In the sixth Li site, Li(6) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with two equivalent Li(7)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with four equivalent Li(4)O6 octahedra, corners with four equivalent Cr(1)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Li(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-51°. In the seventh Li site, Li(7) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent Li(5)O6 octahedra, corners with two equivalent Li(6)O6 octahedra, corners with four equivalent Li(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra,  an edgeedge with one Li(8)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and faces with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-51°. In the eighth Li site, Li(8) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with two equivalent Li(5)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Li(2)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and faces with two equivalent Li(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-52°. Cr(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form CrO6 octahedra that share corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Li(5)O6 octahedra, corners with four equivalent Li(6)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra, edges with two equivalent Li(8)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and faces with two equivalent Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-50°. 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(5) atoms to form FeO6 octahedra that share corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Li(7)O6 octahedra, corners with four equivalent Li(8)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and faces with two equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-52°. In the second Fe site, Fe(2) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Li(8)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with four equivalent Li(3)O6 octahedra, corners with four equivalent Li(4)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Li(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-51°. In the third Fe site, Fe(3) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Li(6)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Li(1)O6 octahedra, corners with four equivalent Li(2)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Li(8)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and faces with two equivalent Li(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-51°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(2), one Li(4), one Li(6), one Li(8), one Cr(1), and one Fe(1) atom to form distorted OLi4CrFe pentagonal pyramids that share corners with two equivalent O(1)Li4CrFe pentagonal pyramids, corners with two equivalent O(2)Li4Fe2 pentagonal pyramids,  an edgeedge with one O(2)Li4Fe2 pentagonal pyramid, edges with two equivalent O(1)Li4CrFe pentagonal pyramids, edges with four equivalent O(4)Li4CrFe pentagonal pyramids, and edges with four equivalent O(5)Li4Fe2 pentagonal pyramids. In the second O site, O(2) is bonded to one Li(1), one Li(3), one Li(4), one Li(7), one Fe(1), and one Fe(2) atom to form distorted OLi4Fe2 pentagonal pyramids that share corners with two equivalent O(1)Li4CrFe pentagonal pyramids, corners with two equivalent O(2)Li4Fe2 pentagonal pyramids,  an edgeedge with one O(1)Li4CrFe pentagonal pyramid, edges with two equivalent O(2)Li4Fe2 pentagonal pyramids, edges with four equivalent O(5)Li4Fe2 pentagonal pyramids, and edges with four equivalent O(6)Li4Fe2 pentagonal pyramids. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Li(1), one Li(2), one Li(3), one Li(5), one Cr(1), and one Fe(3) atom. In the fourth O site, O(4) is bonded to one Li(2), one Li(5), one Li(6), one Li(8), one Cr(1), and one Fe(3) atom to form distorted OLi4CrFe pentagonal pyramids that share corners with two equivalent O(4)Li4CrFe pentagonal pyramids, corners with two equivalent O(5)Li4Fe2 pentagonal pyramids, corners with two equivalent O(6)Li4Fe2 pentagonal pyramids,  an edgeedge with one O(5)Li4Fe2 pentagonal pyramid,  an edgeedge with one O(6)Li4Fe2 pentagonal pyramid, edges with two equivalent O(4)Li4CrFe pentagonal pyramids, and edges with four equivalent O(1)Li4CrFe pentagonal pyramids. In the fifth O site, O(5) is bonded to one Li(4), one Li(6), one Li(7), one Li(8), one Fe(1), and one Fe(2) atom to form distorted OLi4Fe2 pentagonal pyramids that share corners with two equivalent O(4)Li4CrFe pentagonal pyramids, corners with two equivalent O(5)Li4Fe2 pentagonal pyramids, corners with two equivalent O(6)Li4Fe2 pentagonal pyramids,  an edgeedge with one O(4)Li4CrFe pentagonal pyramid,  an edgeedge with one O(6)Li4Fe2 pentagonal pyramid, edges with two equivalent O(5)Li4Fe2 pentagonal pyramids, edges with four equivalent O(1)Li4CrFe pentagonal pyramids, and edges with four equivalent O(2)Li4Fe2 pentagonal pyramids. In the sixth O site, O(6) is bonded to one Li(1), one Li(3), one Li(5), one Li(7), one Fe(2), and one Fe(3) atom to form distorted OLi4Fe2 pentagonal pyramids that share corners with two equivalent O(4)Li4CrFe pentagonal pyramids, corners with two equivalent O(5)Li4Fe2 pentagonal pyramids, corners with two equivalent O(6)Li4Fe2 pentagonal pyramids,  an edgeedge with one O(4)Li4CrFe pentagonal pyramid,  an edgeedge with one O(5)Li4Fe2 pentagonal pyramid, edges with two equivalent O(6)Li4Fe2 pentagonal pyramids, and edges with four equivalent O(2)Li4Fe2 pentagonal pyramids. is represented by the CIF card [CIF]
data_Li8Cr(FeO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.531
_cell_length_b   4.957
_cell_length_c   4.997
_cell_angle_alpha   89.769
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   211.311
_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  0.767  0.000  0.500  1.0
  Li  Li1  1  0.080  0.000  0.500  1.0
  Li  Li2  1  0.745  0.000  0.000  1.0
  Li  Li3  1  0.433  0.000  0.000  1.0
  Li  Li4  1  0.933  0.500  0.500  1.0
  Li  Li5  1  0.244  0.500  0.500  1.0
  Li  Li6  1  0.582  0.500  0.000  1.0
  Li  Li7  1  0.269  0.500  0.000  1.0
  Cr  Cr8  1  0.097  0.000  0.000  1.0
  Fe  Fe9  1  0.415  0.000  0.500  1.0
  Fe  Fe10  1  0.599  0.500  0.500  1.0
  Fe  Fe11  1  0.916  0.500  0.000  1.0
  O  O12  1  0.252  0.148  0.758  1.0
  O  O13  1  0.585  0.182  0.720  1.0
  O  O14  1  0.933  0.174  0.785  1.0
  O  O15  1  0.083  0.323  0.220  1.0
  O  O16  1  0.430  0.321  0.281  1.0
  O  O17  1  0.758  0.353  0.251  1.0
  O  O18  1  0.758  0.647  0.749  1.0
  O  O19  1  0.430  0.679  0.719  1.0
  O  O20  1  0.083  0.677  0.780  1.0
  O  O21  1  0.933  0.826  0.215  1.0
  O  O22  1  0.585  0.818  0.280  1.0
  O  O23  1  0.252  0.852  0.242  1.0
[/CIF]
.