The compound described by Li4Nb3Co3(SnO8)2 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 Nb(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(2)O6 octahedra, and corners with four equivalent Nb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-60°. In the second Li site, Li(2) is bonded in a distorted rectangular see-saw-like geometry to one O(5), one O(7), and two equivalent O(11) atoms. In the third Li site, Li(3) is bonded in a distorted 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 Co(2)O6 octahedra, corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Nb(2)O6 octahedra, corners with three equivalent Sn(1)O6 octahedra, and corners with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-66°. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form NbO6 octahedra that share  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, and edges with four equivalent Co(1)O6 octahedra. In the second Nb site, Nb(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 NbO6 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, edges with two equivalent Nb(2)O6 octahedra, and edges with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-54°. There are two inequivalent Co sites. In the first Co site, Co(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 CoO6 octahedra that share  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 Nb(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. In the second Co site, Co(2) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form CoO6 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, and edges with four equivalent Nb(2)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form SnO6 octahedra that share corners with two equivalent Co(2)O6 octahedra, corners with four equivalent Nb(2)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Nb(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-55°. In the second Sn site, Sn(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 twelve inequivalent O sites. In the first O site, O(1) is bonded to one Li(3), one Nb(2), one Co(2), and one Sn(1) atom to form distorted OLiNbCoSn trigonal pyramids that share  a cornercorner with one O(2)LiCo2Sn tetrahedra,  a cornercorner with one O(4)LiNbCo2 tetrahedra, corners with three equivalent O(9)LiNbCoSn tetrahedra,  a cornercorner with one O(1)LiNbCoSn trigonal pyramid,  an edgeedge with one O(5)LiNb2Co tetrahedra, and  an edgeedge with one O(1)LiNbCoSn trigonal pyramid. In the second O site, O(2) is bonded to one Li(4), two equivalent Co(1), and one Sn(1) atom to form distorted OLiCo2Sn tetrahedra that share corners with two equivalent O(4)LiNbCo2 tetrahedra and corners with two equivalent O(1)LiNbCoSn trigonal pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(1), one Nb(1), and two equivalent Co(1) atoms. In the fourth O site, O(4) is bonded to one Li(3), one Nb(1), and two equivalent Co(1) atoms to form distorted OLiNbCo2 tetrahedra that share corners with two equivalent O(2)LiCo2Sn tetrahedra and corners with two equivalent O(1)LiNbCoSn trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(2), two equivalent Nb(2), and one Co(2) atom to form a mixture of distorted corner and edge-sharing OLiNb2Co tetrahedra. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Li(4), one Nb(1), one Co(1), and one Sn(1) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), two equivalent Co(1), and one Sn(2) atom. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), two equivalent Nb(2), and one Sn(1) atom. In the ninth O site, O(9) is bonded to one Li(1), one Nb(2), one Co(2), and one Sn(2) atom to form distorted OLiNbCoSn tetrahedra that share  a cornercorner with one O(9)LiNbCoSn tetrahedra, corners with two equivalent O(5)LiNb2Co tetrahedra, corners with three equivalent O(1)LiNbCoSn trigonal pyramids, and  an edgeedge with one O(9)LiNbCoSn tetrahedra. In the tenth O site, O(10) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), two equivalent Nb(2), and one Co(2) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Li(2), one Nb(1), one Co(1), and one Sn(2) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Li(1), two equivalent Nb(2), and one Sn(2) atom. is represented by the CIF file [CIF]
data_Li4Nb3Co3(SnO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.096
_cell_length_b   6.096
_cell_length_c   10.032
_cell_angle_alpha   89.558
_cell_angle_beta   89.558
_cell_angle_gamma   60.425
_symmetry_Int_Tables_number   1
_cell_volume   324.268
_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  0.332  0.332  0.094  1.0
  Li  Li1  1  1.000  1.000  0.003  1.0
  Li  Li2  1  0.979  0.979  0.515  1.0
  Li  Li3  1  0.665  0.665  0.615  1.0
  Nb  Nb4  1  0.174  0.174  0.779  1.0
  Nb  Nb5  1  0.838  0.347  0.287  1.0
  Nb  Nb6  1  0.347  0.838  0.287  1.0
  Co  Co7  1  0.656  0.174  0.789  1.0
  Co  Co8  1  0.174  0.656  0.789  1.0
  Co  Co9  1  0.809  0.809  0.289  1.0
  Sn  Sn10  1  0.352  0.352  0.517  1.0
  Sn  Sn11  1  0.677  0.677  0.994  1.0
  O  O12  1  0.679  0.171  0.398  1.0
  O  O13  1  0.485  0.485  0.662  1.0
  O  O14  1  0.322  0.322  0.901  1.0
  O  O15  1  0.006  0.006  0.695  1.0
  O  O16  1  0.007  0.007  0.195  1.0
  O  O17  1  0.171  0.679  0.398  1.0
  O  O18  1  0.469  0.036  0.650  1.0
  O  O19  1  0.036  0.469  0.650  1.0
  O  O20  1  0.846  0.846  0.904  1.0
  O  O21  1  0.174  0.174  0.394  1.0
  O  O22  1  0.959  0.504  0.152  1.0
  O  O23  1  0.504  0.959  0.152  1.0
  O  O24  1  0.647  0.647  0.410  1.0
  O  O25  1  0.846  0.333  0.901  1.0
  O  O26  1  0.517  0.517  0.172  1.0
  O  O27  1  0.333  0.846  0.901  1.0
[/CIF]
.
The compound described by Li4Nb3Co3(SnO8)2 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 Nb(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(2)O6 octahedra, and corners with four equivalent Nb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-60°. In the second Li site, Li(2) is bonded in a distorted rectangular see-saw-like geometry to one O(5), one O(7), and two equivalent O(11) atoms. In the third Li site, Li(3) is bonded in a distorted 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 Co(2)O6 octahedra, corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Nb(2)O6 octahedra, corners with three equivalent Sn(1)O6 octahedra, and corners with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-66°. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form NbO6 octahedra that share  a cornercorner with one Li(1)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, and edges with four equivalent Co(1)O6 octahedra. In the second Nb site, Nb(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 NbO6 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, edges with two equivalent Nb(2)O6 octahedra, and edges with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-54°. There are two inequivalent Co sites. In the first Co site, Co(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 CoO6 octahedra that share  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 Nb(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. In the second Co site, Co(2) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form CoO6 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, and edges with four equivalent Nb(2)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form SnO6 octahedra that share corners with two equivalent Co(2)O6 octahedra, corners with four equivalent Nb(2)O6 octahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Nb(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-55°. In the second Sn site, Sn(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 twelve inequivalent O sites. In the first O site, O(1) is bonded to one Li(3), one Nb(2), one Co(2), and one Sn(1) atom to form distorted OLiNbCoSn trigonal pyramids that share  a cornercorner with one O(2)LiCo2Sn tetrahedra,  a cornercorner with one O(4)LiNbCo2 tetrahedra, corners with three equivalent O(9)LiNbCoSn tetrahedra,  a cornercorner with one O(1)LiNbCoSn trigonal pyramid,  an edgeedge with one O(5)LiNb2Co tetrahedra, and  an edgeedge with one O(1)LiNbCoSn trigonal pyramid. In the second O site, O(2) is bonded to one Li(4), two equivalent Co(1), and one Sn(1) atom to form distorted OLiCo2Sn tetrahedra that share corners with two equivalent O(4)LiNbCo2 tetrahedra and corners with two equivalent O(1)LiNbCoSn trigonal pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(1), one Nb(1), and two equivalent Co(1) atoms. In the fourth O site, O(4) is bonded to one Li(3), one Nb(1), and two equivalent Co(1) atoms to form distorted OLiNbCo2 tetrahedra that share corners with two equivalent O(2)LiCo2Sn tetrahedra and corners with two equivalent O(1)LiNbCoSn trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(2), two equivalent Nb(2), and one Co(2) atom to form a mixture of distorted corner and edge-sharing OLiNb2Co tetrahedra. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Li(4), one Nb(1), one Co(1), and one Sn(1) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), two equivalent Co(1), and one Sn(2) atom. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), two equivalent Nb(2), and one Sn(1) atom. In the ninth O site, O(9) is bonded to one Li(1), one Nb(2), one Co(2), and one Sn(2) atom to form distorted OLiNbCoSn tetrahedra that share  a cornercorner with one O(9)LiNbCoSn tetrahedra, corners with two equivalent O(5)LiNb2Co tetrahedra, corners with three equivalent O(1)LiNbCoSn trigonal pyramids, and  an edgeedge with one O(9)LiNbCoSn tetrahedra. In the tenth O site, O(10) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), two equivalent Nb(2), and one Co(2) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Li(2), one Nb(1), one Co(1), and one Sn(2) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Li(1), two equivalent Nb(2), and one Sn(2) atom. is represented by the CIF file [CIF]
data_Li4Nb3Co3(SnO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.096
_cell_length_b   6.096
_cell_length_c   10.032
_cell_angle_alpha   89.558
_cell_angle_beta   89.558
_cell_angle_gamma   60.425
_symmetry_Int_Tables_number   1
_cell_volume   324.268
_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  0.332  0.332  0.094  1.0
  Li  Li1  1  1.000  1.000  0.003  1.0
  Li  Li2  1  0.979  0.979  0.515  1.0
  Li  Li3  1  0.665  0.665  0.615  1.0
  Nb  Nb4  1  0.174  0.174  0.779  1.0
  Nb  Nb5  1  0.838  0.347  0.287  1.0
  Nb  Nb6  1  0.347  0.838  0.287  1.0
  Co  Co7  1  0.656  0.174  0.789  1.0
  Co  Co8  1  0.174  0.656  0.789  1.0
  Co  Co9  1  0.809  0.809  0.289  1.0
  Sn  Sn10  1  0.352  0.352  0.517  1.0
  Sn  Sn11  1  0.677  0.677  0.994  1.0
  O  O12  1  0.679  0.171  0.398  1.0
  O  O13  1  0.485  0.485  0.662  1.0
  O  O14  1  0.322  0.322  0.901  1.0
  O  O15  1  0.006  0.006  0.695  1.0
  O  O16  1  0.007  0.007  0.195  1.0
  O  O17  1  0.171  0.679  0.398  1.0
  O  O18  1  0.469  0.036  0.650  1.0
  O  O19  1  0.036  0.469  0.650  1.0
  O  O20  1  0.846  0.846  0.904  1.0
  O  O21  1  0.174  0.174  0.394  1.0
  O  O22  1  0.959  0.504  0.152  1.0
  O  O23  1  0.504  0.959  0.152  1.0
  O  O24  1  0.647  0.647  0.410  1.0
  O  O25  1  0.846  0.333  0.901  1.0
  O  O26  1  0.517  0.517  0.172  1.0
  O  O27  1  0.333  0.846  0.901  1.0
[/CIF]
.