The structure described by Li3Y4Ti4(S2O5)2 crystallizes in the monoclinic C2/m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a square co-planar geometry to two equivalent O(3) and two equivalent O(5) atoms. In the second Li site, Li(2,3) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(5) atoms. Y(1) is bonded in a 9-coordinate geometry to five equivalent S(1), one O(1), one O(2), one O(3), and one O(4) atom. Ti(1) is bonded to one S(1), one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form distorted corner-sharing TiSO5 octahedra. The corner-sharing octahedral tilt angles range from 6-14°. S(1) is bonded in a 6-coordinate geometry to five equivalent Y(1) and one Ti(1) atom. There are five inequivalent O sites. In the first O site, O(3) is bonded to one Li(1), two equivalent Y(1), and two equivalent Ti(1) atoms to form OLiY2Ti2 trigonal bipyramids that share  a cornercorner with one O(3)LiY2Ti2 trigonal bipyramid, edges with two equivalent O(5)Li3Ti2 square pyramids, edges with two equivalent O(1)LiY2Ti2 trigonal bipyramids, and edges with two equivalent O(2)LiY2Ti2 trigonal bipyramids. In the second O site, O(4) is bonded in a distorted see-saw-like geometry to two equivalent Y(1) and two equivalent Ti(1) atoms. In the third O site, O(5) is bonded to one Li(1); two equivalent Li(2,3); and two equivalent Ti(1) atoms to form OLi3Ti2 square pyramids that share corners with three equivalent O(5)Li3Ti2 square pyramids, edges with two equivalent O(1)LiY2Ti2 trigonal bipyramids, edges with two equivalent O(2)LiY2Ti2 trigonal bipyramids, and edges with two equivalent O(3)LiY2Ti2 trigonal bipyramids. In the fourth O site, O(1) is bonded to one Li(2,3); two equivalent Y(1); and two equivalent Ti(1) atoms to form OLiY2Ti2 trigonal bipyramids that share  a cornercorner with one O(1)LiY2Ti2 trigonal bipyramid, corners with four equivalent O(2)LiY2Ti2 trigonal bipyramids, edges with two equivalent O(5)Li3Ti2 square pyramids, and edges with two equivalent O(3)LiY2Ti2 trigonal bipyramids. In the fifth O site, O(2) is bonded to one Li(2,3); two equivalent Y(1); and two equivalent Ti(1) atoms to form OLiY2Ti2 trigonal bipyramids that share  a cornercorner with one O(2)LiY2Ti2 trigonal bipyramid, corners with four equivalent O(1)LiY2Ti2 trigonal bipyramids, edges with two equivalent O(5)Li3Ti2 square pyramids, and edges with two equivalent O(3)LiY2Ti2 trigonal bipyramids. is represented by the CIF file [CIF]
data_Li3Y4Ti4(S2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.313
_cell_length_b   11.313
_cell_length_c   5.623
_cell_angle_alpha   89.971
_cell_angle_beta   89.971
_cell_angle_gamma   151.218
_symmetry_Int_Tables_number   1
_cell_volume   346.496
_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  0.500  0.500  0.500  1.0
  Li  Li1  1  0.000  0.000  0.500  1.0
  Li  Li2  1  0.500  0.500  0.000  1.0
  Y  Y3  1  0.912  0.586  0.749  1.0
  Y  Y4  1  0.414  0.088  0.251  1.0
  Y  Y5  1  0.088  0.414  0.251  1.0
  Y  Y6  1  0.586  0.912  0.749  1.0
  Ti  Ti7  1  0.157  0.335  0.754  1.0
  Ti  Ti8  1  0.665  0.843  0.246  1.0
  Ti  Ti9  1  0.843  0.665  0.246  1.0
  Ti  Ti10  1  0.335  0.157  0.754  1.0
  S  S11  1  0.047  0.457  0.749  1.0
  S  S12  1  0.543  0.953  0.251  1.0
  S  S13  1  0.953  0.543  0.251  1.0
  S  S14  1  0.457  0.047  0.749  1.0
  O  O15  1  0.905  0.095  0.500  1.0
  O  O16  1  0.405  0.595  0.000  1.0
  O  O17  1  0.404  0.596  0.500  1.0
  O  O18  1  0.900  0.100  0.000  1.0
  O  O19  1  0.095  0.905  0.500  1.0
  O  O20  1  0.595  0.405  0.000  1.0
  O  O21  1  0.596  0.404  0.500  1.0
  O  O22  1  0.100  0.900  0.000  1.0
  O  O23  1  0.741  0.741  0.259  1.0
  O  O24  1  0.259  0.259  0.741  1.0
[/CIF]
.
The structure described by Li3Y4Ti4(S2O5)2 crystallizes in the monoclinic C2/m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a square co-planar geometry to two equivalent O(3) and two equivalent O(5) atoms. In the second Li site, Li(2,3) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(5) atoms. Y(1) is bonded in a 9-coordinate geometry to five equivalent S(1), one O(1), one O(2), one O(3), and one O(4) atom. Ti(1) is bonded to one S(1), one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form distorted corner-sharing TiSO5 octahedra. The corner-sharing octahedral tilt angles range from 6-14°. S(1) is bonded in a 6-coordinate geometry to five equivalent Y(1) and one Ti(1) atom. There are five inequivalent O sites. In the first O site, O(3) is bonded to one Li(1), two equivalent Y(1), and two equivalent Ti(1) atoms to form OLiY2Ti2 trigonal bipyramids that share  a cornercorner with one O(3)LiY2Ti2 trigonal bipyramid, edges with two equivalent O(5)Li3Ti2 square pyramids, edges with two equivalent O(1)LiY2Ti2 trigonal bipyramids, and edges with two equivalent O(2)LiY2Ti2 trigonal bipyramids. In the second O site, O(4) is bonded in a distorted see-saw-like geometry to two equivalent Y(1) and two equivalent Ti(1) atoms. In the third O site, O(5) is bonded to one Li(1); two equivalent Li(2,3); and two equivalent Ti(1) atoms to form OLi3Ti2 square pyramids that share corners with three equivalent O(5)Li3Ti2 square pyramids, edges with two equivalent O(1)LiY2Ti2 trigonal bipyramids, edges with two equivalent O(2)LiY2Ti2 trigonal bipyramids, and edges with two equivalent O(3)LiY2Ti2 trigonal bipyramids. In the fourth O site, O(1) is bonded to one Li(2,3); two equivalent Y(1); and two equivalent Ti(1) atoms to form OLiY2Ti2 trigonal bipyramids that share  a cornercorner with one O(1)LiY2Ti2 trigonal bipyramid, corners with four equivalent O(2)LiY2Ti2 trigonal bipyramids, edges with two equivalent O(5)Li3Ti2 square pyramids, and edges with two equivalent O(3)LiY2Ti2 trigonal bipyramids. In the fifth O site, O(2) is bonded to one Li(2,3); two equivalent Y(1); and two equivalent Ti(1) atoms to form OLiY2Ti2 trigonal bipyramids that share  a cornercorner with one O(2)LiY2Ti2 trigonal bipyramid, corners with four equivalent O(1)LiY2Ti2 trigonal bipyramids, edges with two equivalent O(5)Li3Ti2 square pyramids, and edges with two equivalent O(3)LiY2Ti2 trigonal bipyramids. is represented by the CIF file [CIF]
data_Li3Y4Ti4(S2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.313
_cell_length_b   11.313
_cell_length_c   5.623
_cell_angle_alpha   89.971
_cell_angle_beta   89.971
_cell_angle_gamma   151.218
_symmetry_Int_Tables_number   1
_cell_volume   346.496
_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  0.500  0.500  0.500  1.0
  Li  Li1  1  0.000  0.000  0.500  1.0
  Li  Li2  1  0.500  0.500  0.000  1.0
  Y  Y3  1  0.912  0.586  0.749  1.0
  Y  Y4  1  0.414  0.088  0.251  1.0
  Y  Y5  1  0.088  0.414  0.251  1.0
  Y  Y6  1  0.586  0.912  0.749  1.0
  Ti  Ti7  1  0.157  0.335  0.754  1.0
  Ti  Ti8  1  0.665  0.843  0.246  1.0
  Ti  Ti9  1  0.843  0.665  0.246  1.0
  Ti  Ti10  1  0.335  0.157  0.754  1.0
  S  S11  1  0.047  0.457  0.749  1.0
  S  S12  1  0.543  0.953  0.251  1.0
  S  S13  1  0.953  0.543  0.251  1.0
  S  S14  1  0.457  0.047  0.749  1.0
  O  O15  1  0.905  0.095  0.500  1.0
  O  O16  1  0.405  0.595  0.000  1.0
  O  O17  1  0.404  0.596  0.500  1.0
  O  O18  1  0.900  0.100  0.000  1.0
  O  O19  1  0.095  0.905  0.500  1.0
  O  O20  1  0.595  0.405  0.000  1.0
  O  O21  1  0.596  0.404  0.500  1.0
  O  O22  1  0.100  0.900  0.000  1.0
  O  O23  1  0.741  0.741  0.259  1.0
  O  O24  1  0.259  0.259  0.741  1.0
[/CIF]
.