The material described by UY4S7 crystallizes in the monoclinic Cm space group. U(1) is bonded to one S(1), one S(3), two equivalent S(4), and two equivalent S(5) atoms to form US6 octahedra that share  a cornercorner with one Y(4)S6 octahedra, corners with two equivalent Y(3)S6 octahedra, corners with two equivalent Y(2)S7 pentagonal bipyramids, corners with four equivalent Y(1)S7 pentagonal bipyramids, edges with two equivalent U(1)S6 octahedra, edges with three equivalent Y(3)S6 octahedra, and  an edgeedge with one Y(1)S7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 0-56°. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded to one S(7), two equivalent S(1), two equivalent S(4), and two equivalent S(6) atoms to form distorted YS7 pentagonal bipyramids that share corners with two equivalent Y(3)S6 octahedra, corners with two equivalent Y(4)S6 octahedra, corners with four equivalent U(1)S6 octahedra,  an edgeedge with one U(1)S6 octahedra, edges with three equivalent Y(4)S6 octahedra, edges with two equivalent Y(2)S7 pentagonal bipyramids, and faces with two equivalent Y(1)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 22-67°. In the second Y site, Y(2) is bonded to one S(6), two equivalent S(2), two equivalent S(3), and two equivalent S(7) atoms to form distorted YS7 pentagonal bipyramids that share corners with two equivalent U(1)S6 octahedra, corners with two equivalent Y(4)S6 octahedra, corners with four equivalent Y(3)S6 octahedra,  an edgeedge with one Y(3)S6 octahedra, edges with three equivalent Y(4)S6 octahedra, edges with two equivalent Y(1)S7 pentagonal bipyramids, and faces with two equivalent Y(2)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 23-68°. In the third Y site, Y(3) is bonded to one S(2), one S(4), two equivalent S(3), and two equivalent S(5) atoms to form YS6 octahedra that share  a cornercorner with one Y(4)S6 octahedra, corners with two equivalent U(1)S6 octahedra, corners with two equivalent Y(1)S7 pentagonal bipyramids, corners with four equivalent Y(2)S7 pentagonal bipyramids, edges with two equivalent Y(3)S6 octahedra, edges with three equivalent U(1)S6 octahedra, and  an edgeedge with one Y(2)S7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 0-57°. In the fourth Y site, Y(4) is bonded to one S(1), one S(2), two equivalent S(6), and two equivalent S(7) atoms to form YS6 octahedra that share  a cornercorner with one U(1)S6 octahedra,  a cornercorner with one Y(3)S6 octahedra, corners with two equivalent Y(1)S7 pentagonal bipyramids, corners with two equivalent Y(2)S7 pentagonal bipyramids, edges with two equivalent Y(4)S6 octahedra, edges with three equivalent Y(1)S7 pentagonal bipyramids, and edges with three equivalent Y(2)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 56-57°. There are seven inequivalent S sites. In the first S site, S(1) is bonded to one U(1), one Y(4), and two equivalent Y(1) atoms to form distorted SY3U tetrahedra that share  a cornercorner with one S(2)Y4 tetrahedra, corners with two equivalent S(1)Y3U tetrahedra,  a cornercorner with one S(3)Y4U trigonal bipyramid, corners with four equivalent S(4)Y3U2 trigonal bipyramids, corners with four equivalent S(6)Y5 trigonal bipyramids,  an edgeedge with one S(4)Y3U2 trigonal bipyramid,  an edgeedge with one S(6)Y5 trigonal bipyramid, and edges with two equivalent S(7)Y5 trigonal bipyramids. In the second S site, S(2) is bonded to one Y(3), one Y(4), and two equivalent Y(2) atoms to form distorted SY4 tetrahedra that share  a cornercorner with one S(1)Y3U tetrahedra, corners with two equivalent S(2)Y4 tetrahedra,  a cornercorner with one S(4)Y3U2 trigonal bipyramid, corners with four equivalent S(3)Y4U trigonal bipyramids, corners with four equivalent S(7)Y5 trigonal bipyramids,  an edgeedge with one S(3)Y4U trigonal bipyramid,  an edgeedge with one S(7)Y5 trigonal bipyramid, and edges with two equivalent S(6)Y5 trigonal bipyramids. In the third S site, S(3) is bonded to one U(1), two equivalent Y(2), and two equivalent Y(3) atoms to form SY4U trigonal bipyramids that share  a cornercorner with one S(1)Y3U tetrahedra, corners with four equivalent S(2)Y4 tetrahedra, corners with two equivalent S(6)Y5 trigonal bipyramids, corners with two equivalent S(7)Y5 trigonal bipyramids,  an edgeedge with one S(2)Y4 tetrahedra,  an edgeedge with one S(7)Y5 trigonal bipyramid, edges with two equivalent S(4)Y3U2 trigonal bipyramids, and edges with two equivalent S(3)Y4U trigonal bipyramids. In the fourth S site, S(4) is bonded to two equivalent U(1), one Y(3), and two equivalent Y(1) atoms to form SY3U2 trigonal bipyramids that share  a cornercorner with one S(2)Y4 tetrahedra, corners with four equivalent S(1)Y3U tetrahedra, corners with two equivalent S(6)Y5 trigonal bipyramids, corners with two equivalent S(7)Y5 trigonal bipyramids,  an edgeedge with one S(1)Y3U tetrahedra,  an edgeedge with one S(6)Y5 trigonal bipyramid, edges with two equivalent S(4)Y3U2 trigonal bipyramids, and edges with two equivalent S(3)Y4U trigonal bipyramids. In the fifth S site, S(5) is bonded in a square co-planar geometry to two equivalent U(1) and two equivalent Y(3) atoms. In the sixth S site, S(6) is bonded to one Y(2), two equivalent Y(1), and two equivalent Y(4) atoms to form distorted SY5 trigonal bipyramids that share corners with four equivalent S(1)Y3U tetrahedra, corners with two equivalent S(4)Y3U2 trigonal bipyramids, corners with two equivalent S(3)Y4U trigonal bipyramids, corners with two equivalent S(7)Y5 trigonal bipyramids,  an edgeedge with one S(1)Y3U tetrahedra, edges with two equivalent S(2)Y4 tetrahedra,  an edgeedge with one S(4)Y3U2 trigonal bipyramid, edges with two equivalent S(6)Y5 trigonal bipyramids, and edges with three equivalent S(7)Y5 trigonal bipyramids. In the seventh S site, S(7) is bonded to one Y(1), two equivalent Y(2), and two equivalent Y(4) atoms to form distorted SY5 trigonal bipyramids that share corners with four equivalent S(2)Y4 tetrahedra, corners with two equivalent S(4)Y3U2 trigonal bipyramids, corners with two equivalent S(3)Y4U trigonal bipyramids, corners with two equivalent S(6)Y5 trigonal bipyramids,  an edgeedge with one S(2)Y4 tetrahedra, edges with two equivalent S(1)Y3U tetrahedra,  an edgeedge with one S(3)Y4U trigonal bipyramid, edges with two equivalent S(7)Y5 trigonal bipyramids, and edges with three equivalent S(6)Y5 trigonal bipyramids. is represented by the CIF file [CIF]
data_Y4US7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.709
_cell_length_b   6.709
_cell_length_c   11.645
_cell_angle_alpha   75.832
_cell_angle_beta   75.832
_cell_angle_gamma   32.864
_symmetry_Int_Tables_number   1
_cell_volume   274.995
_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
  Y  Y0  1  0.700  0.700  0.188  1.0
  Y  Y1  1  0.301  0.301  0.811  1.0
  Y  Y2  1  0.116  0.116  0.577  1.0
  Y  Y3  1  1.000  1.000  0.999  1.0
  U  U4  1  0.885  0.885  0.423  1.0
  S  S5  1  0.041  0.041  0.215  1.0
  S  S6  1  0.958  0.958  0.785  1.0
  S  S7  1  0.740  0.740  0.650  1.0
  S  S8  1  0.258  0.258  0.350  1.0
  S  S9  1  0.500  0.500  0.501  1.0
  S  S10  1  0.341  0.341  0.051  1.0
  S  S11  1  0.659  0.659  0.949  1.0
[/CIF]
.
The material described by UY4S7 crystallizes in the monoclinic Cm space group. U(1) is bonded to one S(1), one S(3), two equivalent S(4), and two equivalent S(5) atoms to form US6 octahedra that share  a cornercorner with one Y(4)S6 octahedra, corners with two equivalent Y(3)S6 octahedra, corners with two equivalent Y(2)S7 pentagonal bipyramids, corners with four equivalent Y(1)S7 pentagonal bipyramids, edges with two equivalent U(1)S6 octahedra, edges with three equivalent Y(3)S6 octahedra, and  an edgeedge with one Y(1)S7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 0-56°. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded to one S(7), two equivalent S(1), two equivalent S(4), and two equivalent S(6) atoms to form distorted YS7 pentagonal bipyramids that share corners with two equivalent Y(3)S6 octahedra, corners with two equivalent Y(4)S6 octahedra, corners with four equivalent U(1)S6 octahedra,  an edgeedge with one U(1)S6 octahedra, edges with three equivalent Y(4)S6 octahedra, edges with two equivalent Y(2)S7 pentagonal bipyramids, and faces with two equivalent Y(1)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 22-67°. In the second Y site, Y(2) is bonded to one S(6), two equivalent S(2), two equivalent S(3), and two equivalent S(7) atoms to form distorted YS7 pentagonal bipyramids that share corners with two equivalent U(1)S6 octahedra, corners with two equivalent Y(4)S6 octahedra, corners with four equivalent Y(3)S6 octahedra,  an edgeedge with one Y(3)S6 octahedra, edges with three equivalent Y(4)S6 octahedra, edges with two equivalent Y(1)S7 pentagonal bipyramids, and faces with two equivalent Y(2)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 23-68°. In the third Y site, Y(3) is bonded to one S(2), one S(4), two equivalent S(3), and two equivalent S(5) atoms to form YS6 octahedra that share  a cornercorner with one Y(4)S6 octahedra, corners with two equivalent U(1)S6 octahedra, corners with two equivalent Y(1)S7 pentagonal bipyramids, corners with four equivalent Y(2)S7 pentagonal bipyramids, edges with two equivalent Y(3)S6 octahedra, edges with three equivalent U(1)S6 octahedra, and  an edgeedge with one Y(2)S7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 0-57°. In the fourth Y site, Y(4) is bonded to one S(1), one S(2), two equivalent S(6), and two equivalent S(7) atoms to form YS6 octahedra that share  a cornercorner with one U(1)S6 octahedra,  a cornercorner with one Y(3)S6 octahedra, corners with two equivalent Y(1)S7 pentagonal bipyramids, corners with two equivalent Y(2)S7 pentagonal bipyramids, edges with two equivalent Y(4)S6 octahedra, edges with three equivalent Y(1)S7 pentagonal bipyramids, and edges with three equivalent Y(2)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 56-57°. There are seven inequivalent S sites. In the first S site, S(1) is bonded to one U(1), one Y(4), and two equivalent Y(1) atoms to form distorted SY3U tetrahedra that share  a cornercorner with one S(2)Y4 tetrahedra, corners with two equivalent S(1)Y3U tetrahedra,  a cornercorner with one S(3)Y4U trigonal bipyramid, corners with four equivalent S(4)Y3U2 trigonal bipyramids, corners with four equivalent S(6)Y5 trigonal bipyramids,  an edgeedge with one S(4)Y3U2 trigonal bipyramid,  an edgeedge with one S(6)Y5 trigonal bipyramid, and edges with two equivalent S(7)Y5 trigonal bipyramids. In the second S site, S(2) is bonded to one Y(3), one Y(4), and two equivalent Y(2) atoms to form distorted SY4 tetrahedra that share  a cornercorner with one S(1)Y3U tetrahedra, corners with two equivalent S(2)Y4 tetrahedra,  a cornercorner with one S(4)Y3U2 trigonal bipyramid, corners with four equivalent S(3)Y4U trigonal bipyramids, corners with four equivalent S(7)Y5 trigonal bipyramids,  an edgeedge with one S(3)Y4U trigonal bipyramid,  an edgeedge with one S(7)Y5 trigonal bipyramid, and edges with two equivalent S(6)Y5 trigonal bipyramids. In the third S site, S(3) is bonded to one U(1), two equivalent Y(2), and two equivalent Y(3) atoms to form SY4U trigonal bipyramids that share  a cornercorner with one S(1)Y3U tetrahedra, corners with four equivalent S(2)Y4 tetrahedra, corners with two equivalent S(6)Y5 trigonal bipyramids, corners with two equivalent S(7)Y5 trigonal bipyramids,  an edgeedge with one S(2)Y4 tetrahedra,  an edgeedge with one S(7)Y5 trigonal bipyramid, edges with two equivalent S(4)Y3U2 trigonal bipyramids, and edges with two equivalent S(3)Y4U trigonal bipyramids. In the fourth S site, S(4) is bonded to two equivalent U(1), one Y(3), and two equivalent Y(1) atoms to form SY3U2 trigonal bipyramids that share  a cornercorner with one S(2)Y4 tetrahedra, corners with four equivalent S(1)Y3U tetrahedra, corners with two equivalent S(6)Y5 trigonal bipyramids, corners with two equivalent S(7)Y5 trigonal bipyramids,  an edgeedge with one S(1)Y3U tetrahedra,  an edgeedge with one S(6)Y5 trigonal bipyramid, edges with two equivalent S(4)Y3U2 trigonal bipyramids, and edges with two equivalent S(3)Y4U trigonal bipyramids. In the fifth S site, S(5) is bonded in a square co-planar geometry to two equivalent U(1) and two equivalent Y(3) atoms. In the sixth S site, S(6) is bonded to one Y(2), two equivalent Y(1), and two equivalent Y(4) atoms to form distorted SY5 trigonal bipyramids that share corners with four equivalent S(1)Y3U tetrahedra, corners with two equivalent S(4)Y3U2 trigonal bipyramids, corners with two equivalent S(3)Y4U trigonal bipyramids, corners with two equivalent S(7)Y5 trigonal bipyramids,  an edgeedge with one S(1)Y3U tetrahedra, edges with two equivalent S(2)Y4 tetrahedra,  an edgeedge with one S(4)Y3U2 trigonal bipyramid, edges with two equivalent S(6)Y5 trigonal bipyramids, and edges with three equivalent S(7)Y5 trigonal bipyramids. In the seventh S site, S(7) is bonded to one Y(1), two equivalent Y(2), and two equivalent Y(4) atoms to form distorted SY5 trigonal bipyramids that share corners with four equivalent S(2)Y4 tetrahedra, corners with two equivalent S(4)Y3U2 trigonal bipyramids, corners with two equivalent S(3)Y4U trigonal bipyramids, corners with two equivalent S(6)Y5 trigonal bipyramids,  an edgeedge with one S(2)Y4 tetrahedra, edges with two equivalent S(1)Y3U tetrahedra,  an edgeedge with one S(3)Y4U trigonal bipyramid, edges with two equivalent S(7)Y5 trigonal bipyramids, and edges with three equivalent S(6)Y5 trigonal bipyramids. is represented by the CIF file [CIF]
data_Y4US7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.709
_cell_length_b   6.709
_cell_length_c   11.645
_cell_angle_alpha   75.832
_cell_angle_beta   75.832
_cell_angle_gamma   32.864
_symmetry_Int_Tables_number   1
_cell_volume   274.995
_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
  Y  Y0  1  0.700  0.700  0.188  1.0
  Y  Y1  1  0.301  0.301  0.811  1.0
  Y  Y2  1  0.116  0.116  0.577  1.0
  Y  Y3  1  1.000  1.000  0.999  1.0
  U  U4  1  0.885  0.885  0.423  1.0
  S  S5  1  0.041  0.041  0.215  1.0
  S  S6  1  0.958  0.958  0.785  1.0
  S  S7  1  0.740  0.740  0.650  1.0
  S  S8  1  0.258  0.258  0.350  1.0
  S  S9  1  0.500  0.500  0.501  1.0
  S  S10  1  0.341  0.341  0.051  1.0
  S  S11  1  0.659  0.659  0.949  1.0
[/CIF]
.