The structure described by Li4NbWTe2O12 is Ilmenite-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 in a 6-coordinate geometry to one O(1), one O(11), one O(4), one O(7), one O(8), and one O(9) atom. In the second Li site, Li(2) is bonded to one O(10), one O(12), one O(2), one O(3), one O(5), and one O(6) atom to form distorted LiO6 octahedra that share corners with two equivalent Te(1)O6 octahedra,  an edgeedge with one Nb(1)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 63-65°. In the third Li site, Li(3) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(5), one O(6), one O(8), and one O(9) atom. In the fourth Li site, Li(4) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(12), one O(3), one O(4), and one O(7) atom. Nb(1) is bonded to one O(1), one O(12), one O(4), one O(6), one O(7), and one O(9) atom to form NbO6 octahedra that share corners with four equivalent Te(1)O6 octahedra and  an edgeedge with one Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-45°. W(1) is bonded to one O(10), one O(11), one O(2), one O(3), one O(5), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Te(1)O6 octahedra and edges with two equivalent Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-44°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(1), one O(11), one O(12), one O(2), one O(4), and one O(9) atom to form distorted TeO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent W(1)O6 octahedra, and corners with four equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-65°. In the second Te site, Te(2) is bonded in a 6-coordinate geometry to one O(10), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Li(1), one Li(4), one Nb(1), and one Te(1) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Li(2), one Li(3), one W(1), and one Te(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(2), one Li(4), one W(1), and one Te(2) atom. In the fourth O site, O(4) is bonded to one Li(1), one Li(4), one Nb(1), and one Te(1) atom to form distorted corner-sharing OLi2NbTe trigonal pyramids. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one W(1), and one Te(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one Nb(1), and one Te(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Li(1), one Li(4), one Nb(1), and one Te(2) atom. In the eighth O site, O(8) is bonded to one Li(1), one Li(3), one W(1), and one Te(2) atom to form distorted corner-sharing OLi2TeW trigonal pyramids. In the ninth O site, O(9) is bonded in a distorted see-saw-like geometry to one Li(1), one Li(3), one Nb(1), and one Te(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one W(1), and one Te(2) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Li(4), one W(1), and one Te(1) atom. In the twelfth O site, O(12) is bonded in a distorted see-saw-like geometry to one Li(2), one Li(4), one Nb(1), and one Te(1) atom. is represented by the CIF file [CIF]
data_Li4NbTe2WO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.250
_cell_length_b   5.702
_cell_length_c   7.891
_cell_angle_alpha   96.899
_cell_angle_beta   90.135
_cell_angle_gamma   90.308
_symmetry_Int_Tables_number   1
_cell_volume   234.478
_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  0.999  0.425  0.296  1.0
  Li  Li1  1  0.501  0.907  0.788  1.0
  Li  Li2  1  0.004  0.430  0.781  1.0
  Li  Li3  1  0.493  0.927  0.292  1.0
  Nb  Nb4  1  0.501  0.491  0.512  1.0
  Te  Te5  1  0.011  0.991  0.516  1.0
  Te  Te6  1  0.499  0.463  0.019  1.0
  W  W7  1  0.998  0.990  0.009  1.0
  O  O8  1  0.306  0.198  0.429  1.0
  O  O9  1  0.138  0.042  0.751  1.0
  O  O10  1  0.310  0.877  0.061  1.0
  O  O11  1  0.203  0.706  0.419  1.0
  O  O12  1  0.849  0.719  0.907  1.0
  O  O13  1  0.355  0.537  0.725  1.0
  O  O14  1  0.626  0.492  0.249  1.0
  O  O15  1  0.157  0.329  0.056  1.0
  O  O16  1  0.816  0.326  0.555  1.0
  O  O17  1  0.693  0.181  0.926  1.0
  O  O18  1  0.856  0.008  0.226  1.0
  O  O19  1  0.685  0.821  0.553  1.0
[/CIF]
.
The structure described by Li4NbWTe2O12 is Ilmenite-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 in a 6-coordinate geometry to one O(1), one O(11), one O(4), one O(7), one O(8), and one O(9) atom. In the second Li site, Li(2) is bonded to one O(10), one O(12), one O(2), one O(3), one O(5), and one O(6) atom to form distorted LiO6 octahedra that share corners with two equivalent Te(1)O6 octahedra,  an edgeedge with one Nb(1)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 63-65°. In the third Li site, Li(3) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(5), one O(6), one O(8), and one O(9) atom. In the fourth Li site, Li(4) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(12), one O(3), one O(4), and one O(7) atom. Nb(1) is bonded to one O(1), one O(12), one O(4), one O(6), one O(7), and one O(9) atom to form NbO6 octahedra that share corners with four equivalent Te(1)O6 octahedra and  an edgeedge with one Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-45°. W(1) is bonded to one O(10), one O(11), one O(2), one O(3), one O(5), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Te(1)O6 octahedra and edges with two equivalent Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-44°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(1), one O(11), one O(12), one O(2), one O(4), and one O(9) atom to form distorted TeO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent W(1)O6 octahedra, and corners with four equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-65°. In the second Te site, Te(2) is bonded in a 6-coordinate geometry to one O(10), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Li(1), one Li(4), one Nb(1), and one Te(1) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Li(2), one Li(3), one W(1), and one Te(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(2), one Li(4), one W(1), and one Te(2) atom. In the fourth O site, O(4) is bonded to one Li(1), one Li(4), one Nb(1), and one Te(1) atom to form distorted corner-sharing OLi2NbTe trigonal pyramids. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one W(1), and one Te(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one Nb(1), and one Te(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Li(1), one Li(4), one Nb(1), and one Te(2) atom. In the eighth O site, O(8) is bonded to one Li(1), one Li(3), one W(1), and one Te(2) atom to form distorted corner-sharing OLi2TeW trigonal pyramids. In the ninth O site, O(9) is bonded in a distorted see-saw-like geometry to one Li(1), one Li(3), one Nb(1), and one Te(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one W(1), and one Te(2) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Li(4), one W(1), and one Te(1) atom. In the twelfth O site, O(12) is bonded in a distorted see-saw-like geometry to one Li(2), one Li(4), one Nb(1), and one Te(1) atom. is represented by the CIF file [CIF]
data_Li4NbTe2WO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.250
_cell_length_b   5.702
_cell_length_c   7.891
_cell_angle_alpha   96.899
_cell_angle_beta   90.135
_cell_angle_gamma   90.308
_symmetry_Int_Tables_number   1
_cell_volume   234.478
_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  0.999  0.425  0.296  1.0
  Li  Li1  1  0.501  0.907  0.788  1.0
  Li  Li2  1  0.004  0.430  0.781  1.0
  Li  Li3  1  0.493  0.927  0.292  1.0
  Nb  Nb4  1  0.501  0.491  0.512  1.0
  Te  Te5  1  0.011  0.991  0.516  1.0
  Te  Te6  1  0.499  0.463  0.019  1.0
  W  W7  1  0.998  0.990  0.009  1.0
  O  O8  1  0.306  0.198  0.429  1.0
  O  O9  1  0.138  0.042  0.751  1.0
  O  O10  1  0.310  0.877  0.061  1.0
  O  O11  1  0.203  0.706  0.419  1.0
  O  O12  1  0.849  0.719  0.907  1.0
  O  O13  1  0.355  0.537  0.725  1.0
  O  O14  1  0.626  0.492  0.249  1.0
  O  O15  1  0.157  0.329  0.056  1.0
  O  O16  1  0.816  0.326  0.555  1.0
  O  O17  1  0.693  0.181  0.926  1.0
  O  O18  1  0.856  0.008  0.226  1.0
  O  O19  1  0.685  0.821  0.553  1.0
[/CIF]
.