The material structure described by Dy4CeS7 crystallizes in the monoclinic Cm space group. There are four inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to one S(4), two equivalent S(2), two equivalent S(3), and two equivalent S(5) atoms to form distorted DyS7 pentagonal bipyramids that share corners with two equivalent Dy(3)S6 octahedra, corners with two equivalent Dy(4)S6 octahedra, corners with four equivalent Ce(1)S6 octahedra,  an edgeedge with one Ce(1)S6 octahedra, edges with three equivalent Dy(3)S6 octahedra, edges with two equivalent Dy(2)S7 pentagonal bipyramids, and faces with two equivalent Dy(1)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 21-65°. In the second Dy site, Dy(2) is bonded to one S(3), two equivalent S(1), two equivalent S(4), and two equivalent S(6) atoms to form distorted DyS7 pentagonal bipyramids that share corners with two equivalent Dy(3)S6 octahedra, corners with two equivalent Ce(1)S6 octahedra, corners with four equivalent Dy(4)S6 octahedra,  an edgeedge with one Dy(4)S6 octahedra, edges with three equivalent Dy(3)S6 octahedra, edges with two equivalent Dy(1)S7 pentagonal bipyramids, and faces with two equivalent Dy(2)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 22-69°. In the third Dy site, Dy(3) is bonded to one S(5), one S(6), two equivalent S(3), and two equivalent S(4) atoms to form DyS6 octahedra that share  a cornercorner with one Dy(4)S6 octahedra,  a cornercorner with one Ce(1)S6 octahedra, corners with two equivalent Dy(1)S7 pentagonal bipyramids, corners with two equivalent Dy(2)S7 pentagonal bipyramids, edges with two equivalent Dy(3)S6 octahedra, edges with three equivalent Dy(1)S7 pentagonal bipyramids, and edges with three equivalent Dy(2)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 58°. In the fourth Dy site, Dy(4) is bonded to one S(2), one S(6), two equivalent S(1), and two equivalent S(7) atoms to form DyS6 octahedra that share  a cornercorner with one Dy(3)S6 octahedra, corners with two equivalent Ce(1)S6 octahedra, corners with two equivalent Dy(1)S7 pentagonal bipyramids, corners with four equivalent Dy(2)S7 pentagonal bipyramids, edges with two equivalent Dy(4)S6 octahedra, edges with three equivalent Ce(1)S6 octahedra, and  an edgeedge with one Dy(2)S7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 2-58°. Ce(1) is bonded to one S(1), one S(5), two equivalent S(2), and two equivalent S(7) atoms to form CeS6 octahedra that share  a cornercorner with one Dy(3)S6 octahedra, corners with two equivalent Dy(4)S6 octahedra, corners with two equivalent Dy(2)S7 pentagonal bipyramids, corners with four equivalent Dy(1)S7 pentagonal bipyramids, edges with two equivalent Ce(1)S6 octahedra, edges with three equivalent Dy(4)S6 octahedra, and  an edgeedge with one Dy(1)S7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 2-58°. There are seven inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Dy(2), two equivalent Dy(4), and one Ce(1) atom to form SCeDy4 trigonal bipyramids that share  a cornercorner with one S(5)CeDy3 tetrahedra, corners with four equivalent S(6)Dy4 tetrahedra, corners with two equivalent S(3)Dy5 trigonal bipyramids, corners with two equivalent S(4)Dy5 trigonal bipyramids,  an edgeedge with one S(6)Dy4 tetrahedra,  an edgeedge with one S(4)Dy5 trigonal bipyramid, edges with two equivalent S(2)Ce2Dy3 trigonal bipyramids, and edges with two equivalent S(1)CeDy4 trigonal bipyramids. In the second S site, S(2) is bonded to one Dy(4), two equivalent Dy(1), and two equivalent Ce(1) atoms to form SCe2Dy3 trigonal bipyramids that share  a cornercorner with one S(6)Dy4 tetrahedra, corners with four equivalent S(5)CeDy3 tetrahedra, corners with two equivalent S(3)Dy5 trigonal bipyramids, corners with two equivalent S(4)Dy5 trigonal bipyramids,  an edgeedge with one S(5)CeDy3 tetrahedra,  an edgeedge with one S(3)Dy5 trigonal bipyramid, edges with two equivalent S(2)Ce2Dy3 trigonal bipyramids, and edges with two equivalent S(1)CeDy4 trigonal bipyramids. In the third S site, S(3) is bonded to one Dy(2), two equivalent Dy(1), and two equivalent Dy(3) atoms to form distorted SDy5 trigonal bipyramids that share corners with four equivalent S(5)CeDy3 tetrahedra, corners with two equivalent S(2)Ce2Dy3 trigonal bipyramids, corners with two equivalent S(1)CeDy4 trigonal bipyramids, corners with two equivalent S(4)Dy5 trigonal bipyramids,  an edgeedge with one S(5)CeDy3 tetrahedra, edges with two equivalent S(6)Dy4 tetrahedra,  an edgeedge with one S(2)Ce2Dy3 trigonal bipyramid, edges with two equivalent S(3)Dy5 trigonal bipyramids, and edges with three equivalent S(4)Dy5 trigonal bipyramids. In the fourth S site, S(4) is bonded to one Dy(1), two equivalent Dy(2), and two equivalent Dy(3) atoms to form distorted SDy5 trigonal bipyramids that share corners with four equivalent S(6)Dy4 tetrahedra, corners with two equivalent S(2)Ce2Dy3 trigonal bipyramids, corners with two equivalent S(1)CeDy4 trigonal bipyramids, corners with two equivalent S(3)Dy5 trigonal bipyramids,  an edgeedge with one S(6)Dy4 tetrahedra, edges with two equivalent S(5)CeDy3 tetrahedra,  an edgeedge with one S(1)CeDy4 trigonal bipyramid, edges with two equivalent S(4)Dy5 trigonal bipyramids, and edges with three equivalent S(3)Dy5 trigonal bipyramids. In the fifth S site, S(5) is bonded to one Dy(3), two equivalent Dy(1), and one Ce(1) atom to form SCeDy3 tetrahedra that share  a cornercorner with one S(6)Dy4 tetrahedra, corners with two equivalent S(5)CeDy3 tetrahedra,  a cornercorner with one S(1)CeDy4 trigonal bipyramid, corners with four equivalent S(2)Ce2Dy3 trigonal bipyramids, corners with four equivalent S(3)Dy5 trigonal bipyramids,  an edgeedge with one S(2)Ce2Dy3 trigonal bipyramid,  an edgeedge with one S(3)Dy5 trigonal bipyramid, and edges with two equivalent S(4)Dy5 trigonal bipyramids. In the sixth S site, S(6) is bonded to one Dy(3), one Dy(4), and two equivalent Dy(2) atoms to form distorted SDy4 tetrahedra that share  a cornercorner with one S(5)CeDy3 tetrahedra, corners with two equivalent S(6)Dy4 tetrahedra,  a cornercorner with one S(2)Ce2Dy3 trigonal bipyramid, corners with four equivalent S(1)CeDy4 trigonal bipyramids, corners with four equivalent S(4)Dy5 trigonal bipyramids,  an edgeedge with one S(1)CeDy4 trigonal bipyramid,  an edgeedge with one S(4)Dy5 trigonal bipyramid, and edges with two equivalent S(3)Dy5 trigonal bipyramids. In the seventh S site, S(7) is bonded in a rectangular see-saw-like geometry to two equivalent Dy(4) and two equivalent Ce(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeDy4S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.783
_cell_length_b   6.783
_cell_length_c   11.700
_cell_angle_alpha   75.908
_cell_angle_beta   75.908
_cell_angle_gamma   32.796
_symmetry_Int_Tables_number   1
_cell_volume   282.058
_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
  Ce  Ce0  1  0.887  0.887  0.421  1.0
  Dy  Dy1  1  0.700  0.700  0.185  1.0
  Dy  Dy2  1  0.301  0.301  0.813  1.0
  Dy  Dy3  1  0.000  0.000  0.998  1.0
  Dy  Dy4  1  0.114  0.114  0.582  1.0
  S  S5  1  0.738  0.738  0.654  1.0
  S  S6  1  0.253  0.253  0.349  1.0
  S  S7  1  0.342  0.342  0.050  1.0
  S  S8  1  0.659  0.659  0.949  1.0
  S  S9  1  0.045  0.045  0.210  1.0
  S  S10  1  0.957  0.957  0.785  1.0
  S  S11  1  0.504  0.504  0.504  1.0
[/CIF]
.
The material structure described by Dy4CeS7 crystallizes in the monoclinic Cm space group. There are four inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to one S(4), two equivalent S(2), two equivalent S(3), and two equivalent S(5) atoms to form distorted DyS7 pentagonal bipyramids that share corners with two equivalent Dy(3)S6 octahedra, corners with two equivalent Dy(4)S6 octahedra, corners with four equivalent Ce(1)S6 octahedra,  an edgeedge with one Ce(1)S6 octahedra, edges with three equivalent Dy(3)S6 octahedra, edges with two equivalent Dy(2)S7 pentagonal bipyramids, and faces with two equivalent Dy(1)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 21-65°. In the second Dy site, Dy(2) is bonded to one S(3), two equivalent S(1), two equivalent S(4), and two equivalent S(6) atoms to form distorted DyS7 pentagonal bipyramids that share corners with two equivalent Dy(3)S6 octahedra, corners with two equivalent Ce(1)S6 octahedra, corners with four equivalent Dy(4)S6 octahedra,  an edgeedge with one Dy(4)S6 octahedra, edges with three equivalent Dy(3)S6 octahedra, edges with two equivalent Dy(1)S7 pentagonal bipyramids, and faces with two equivalent Dy(2)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 22-69°. In the third Dy site, Dy(3) is bonded to one S(5), one S(6), two equivalent S(3), and two equivalent S(4) atoms to form DyS6 octahedra that share  a cornercorner with one Dy(4)S6 octahedra,  a cornercorner with one Ce(1)S6 octahedra, corners with two equivalent Dy(1)S7 pentagonal bipyramids, corners with two equivalent Dy(2)S7 pentagonal bipyramids, edges with two equivalent Dy(3)S6 octahedra, edges with three equivalent Dy(1)S7 pentagonal bipyramids, and edges with three equivalent Dy(2)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 58°. In the fourth Dy site, Dy(4) is bonded to one S(2), one S(6), two equivalent S(1), and two equivalent S(7) atoms to form DyS6 octahedra that share  a cornercorner with one Dy(3)S6 octahedra, corners with two equivalent Ce(1)S6 octahedra, corners with two equivalent Dy(1)S7 pentagonal bipyramids, corners with four equivalent Dy(2)S7 pentagonal bipyramids, edges with two equivalent Dy(4)S6 octahedra, edges with three equivalent Ce(1)S6 octahedra, and  an edgeedge with one Dy(2)S7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 2-58°. Ce(1) is bonded to one S(1), one S(5), two equivalent S(2), and two equivalent S(7) atoms to form CeS6 octahedra that share  a cornercorner with one Dy(3)S6 octahedra, corners with two equivalent Dy(4)S6 octahedra, corners with two equivalent Dy(2)S7 pentagonal bipyramids, corners with four equivalent Dy(1)S7 pentagonal bipyramids, edges with two equivalent Ce(1)S6 octahedra, edges with three equivalent Dy(4)S6 octahedra, and  an edgeedge with one Dy(1)S7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 2-58°. There are seven inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Dy(2), two equivalent Dy(4), and one Ce(1) atom to form SCeDy4 trigonal bipyramids that share  a cornercorner with one S(5)CeDy3 tetrahedra, corners with four equivalent S(6)Dy4 tetrahedra, corners with two equivalent S(3)Dy5 trigonal bipyramids, corners with two equivalent S(4)Dy5 trigonal bipyramids,  an edgeedge with one S(6)Dy4 tetrahedra,  an edgeedge with one S(4)Dy5 trigonal bipyramid, edges with two equivalent S(2)Ce2Dy3 trigonal bipyramids, and edges with two equivalent S(1)CeDy4 trigonal bipyramids. In the second S site, S(2) is bonded to one Dy(4), two equivalent Dy(1), and two equivalent Ce(1) atoms to form SCe2Dy3 trigonal bipyramids that share  a cornercorner with one S(6)Dy4 tetrahedra, corners with four equivalent S(5)CeDy3 tetrahedra, corners with two equivalent S(3)Dy5 trigonal bipyramids, corners with two equivalent S(4)Dy5 trigonal bipyramids,  an edgeedge with one S(5)CeDy3 tetrahedra,  an edgeedge with one S(3)Dy5 trigonal bipyramid, edges with two equivalent S(2)Ce2Dy3 trigonal bipyramids, and edges with two equivalent S(1)CeDy4 trigonal bipyramids. In the third S site, S(3) is bonded to one Dy(2), two equivalent Dy(1), and two equivalent Dy(3) atoms to form distorted SDy5 trigonal bipyramids that share corners with four equivalent S(5)CeDy3 tetrahedra, corners with two equivalent S(2)Ce2Dy3 trigonal bipyramids, corners with two equivalent S(1)CeDy4 trigonal bipyramids, corners with two equivalent S(4)Dy5 trigonal bipyramids,  an edgeedge with one S(5)CeDy3 tetrahedra, edges with two equivalent S(6)Dy4 tetrahedra,  an edgeedge with one S(2)Ce2Dy3 trigonal bipyramid, edges with two equivalent S(3)Dy5 trigonal bipyramids, and edges with three equivalent S(4)Dy5 trigonal bipyramids. In the fourth S site, S(4) is bonded to one Dy(1), two equivalent Dy(2), and two equivalent Dy(3) atoms to form distorted SDy5 trigonal bipyramids that share corners with four equivalent S(6)Dy4 tetrahedra, corners with two equivalent S(2)Ce2Dy3 trigonal bipyramids, corners with two equivalent S(1)CeDy4 trigonal bipyramids, corners with two equivalent S(3)Dy5 trigonal bipyramids,  an edgeedge with one S(6)Dy4 tetrahedra, edges with two equivalent S(5)CeDy3 tetrahedra,  an edgeedge with one S(1)CeDy4 trigonal bipyramid, edges with two equivalent S(4)Dy5 trigonal bipyramids, and edges with three equivalent S(3)Dy5 trigonal bipyramids. In the fifth S site, S(5) is bonded to one Dy(3), two equivalent Dy(1), and one Ce(1) atom to form SCeDy3 tetrahedra that share  a cornercorner with one S(6)Dy4 tetrahedra, corners with two equivalent S(5)CeDy3 tetrahedra,  a cornercorner with one S(1)CeDy4 trigonal bipyramid, corners with four equivalent S(2)Ce2Dy3 trigonal bipyramids, corners with four equivalent S(3)Dy5 trigonal bipyramids,  an edgeedge with one S(2)Ce2Dy3 trigonal bipyramid,  an edgeedge with one S(3)Dy5 trigonal bipyramid, and edges with two equivalent S(4)Dy5 trigonal bipyramids. In the sixth S site, S(6) is bonded to one Dy(3), one Dy(4), and two equivalent Dy(2) atoms to form distorted SDy4 tetrahedra that share  a cornercorner with one S(5)CeDy3 tetrahedra, corners with two equivalent S(6)Dy4 tetrahedra,  a cornercorner with one S(2)Ce2Dy3 trigonal bipyramid, corners with four equivalent S(1)CeDy4 trigonal bipyramids, corners with four equivalent S(4)Dy5 trigonal bipyramids,  an edgeedge with one S(1)CeDy4 trigonal bipyramid,  an edgeedge with one S(4)Dy5 trigonal bipyramid, and edges with two equivalent S(3)Dy5 trigonal bipyramids. In the seventh S site, S(7) is bonded in a rectangular see-saw-like geometry to two equivalent Dy(4) and two equivalent Ce(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeDy4S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.783
_cell_length_b   6.783
_cell_length_c   11.700
_cell_angle_alpha   75.908
_cell_angle_beta   75.908
_cell_angle_gamma   32.796
_symmetry_Int_Tables_number   1
_cell_volume   282.058
_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
  Ce  Ce0  1  0.887  0.887  0.421  1.0
  Dy  Dy1  1  0.700  0.700  0.185  1.0
  Dy  Dy2  1  0.301  0.301  0.813  1.0
  Dy  Dy3  1  0.000  0.000  0.998  1.0
  Dy  Dy4  1  0.114  0.114  0.582  1.0
  S  S5  1  0.738  0.738  0.654  1.0
  S  S6  1  0.253  0.253  0.349  1.0
  S  S7  1  0.342  0.342  0.050  1.0
  S  S8  1  0.659  0.659  0.949  1.0
  S  S9  1  0.045  0.045  0.210  1.0
  S  S10  1  0.957  0.957  0.785  1.0
  S  S11  1  0.504  0.504  0.504  1.0
[/CIF]
.