The compound described by Rb2Sb4S7 crystallizes in the triclinic P-1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to one S(1), one S(3), one S(6), one S(7), and two equivalent S(2) atoms. In the second Rb site, Rb(2) is bonded in a 6-coordinate geometry to one S(6), one S(7), two equivalent S(3), and two equivalent S(4) atoms. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a see-saw-like geometry to one S(1), one S(5), and two equivalent S(4) atoms. In the second Sb site, Sb(2) is bonded in a 3-coordinate geometry to one S(1), one S(3), one S(5), and one S(7) atom. In the third Sb site, Sb(3) is bonded in a 4-coordinate geometry to one S(1), one S(2), one S(7), and two equivalent S(6) atoms. In the fourth Sb site, Sb(4) is bonded in a distorted rectangular see-saw-like geometry to one S(1), one S(2), one S(3), and one S(6) atom. There are seven inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to one Rb(1), one Sb(1), one Sb(2), one Sb(3), and one Sb(4) atom. In the second S site, S(2) is bonded to two equivalent Rb(1), one Sb(3), and one Sb(4) atom to form distorted SRb2Sb2 trigonal pyramids that share  a cornercorner with one S(6)Rb2Sb3 square pyramid, corners with three equivalent S(7)Rb2Sb2 tetrahedra,  a cornercorner with one S(3)Rb3Sb2 trigonal bipyramid, edges with two equivalent S(6)Rb2Sb3 square pyramids,  an edgeedge with one S(3)Rb3Sb2 trigonal bipyramid, and  an edgeedge with one S(2)Rb2Sb2 trigonal pyramid. In the third S site, S(3) is bonded to one Rb(1), two equivalent Rb(2), one Sb(2), and one Sb(4) atom to form distorted SRb3Sb2 trigonal bipyramids that share corners with two equivalent S(6)Rb2Sb3 square pyramids, corners with two equivalent S(7)Rb2Sb2 tetrahedra, corners with four equivalent S(4)Rb2Sb2 tetrahedra,  a cornercorner with one S(2)Rb2Sb2 trigonal pyramid,  an edgeedge with one S(6)Rb2Sb3 square pyramid,  an edgeedge with one S(7)Rb2Sb2 tetrahedra,  an edgeedge with one S(3)Rb3Sb2 trigonal bipyramid, and  an edgeedge with one S(2)Rb2Sb2 trigonal pyramid. In the fourth S site, S(4) is bonded to two equivalent Rb(2) and two equivalent Sb(1) atoms to form distorted SRb2Sb2 tetrahedra that share corners with two equivalent S(6)Rb2Sb3 square pyramids, corners with two equivalent S(7)Rb2Sb2 tetrahedra, corners with four equivalent S(3)Rb3Sb2 trigonal bipyramids, and edges with two equivalent S(4)Rb2Sb2 tetrahedra. In the fifth S site, S(5) is bonded in a water-like geometry to one Sb(1) and one Sb(2) atom. In the sixth S site, S(6) is bonded to one Rb(1), one Rb(2), one Sb(4), and two equivalent Sb(3) atoms to form distorted SRb2Sb3 square pyramids that share corners with two equivalent S(4)Rb2Sb2 tetrahedra, corners with two equivalent S(7)Rb2Sb2 tetrahedra, corners with two equivalent S(3)Rb3Sb2 trigonal bipyramids,  a cornercorner with one S(2)Rb2Sb2 trigonal pyramid,  an edgeedge with one S(6)Rb2Sb3 square pyramid,  an edgeedge with one S(7)Rb2Sb2 tetrahedra,  an edgeedge with one S(3)Rb3Sb2 trigonal bipyramid, and edges with two equivalent S(2)Rb2Sb2 trigonal pyramids. In the seventh S site, S(7) is bonded to one Rb(1), one Rb(2), one Sb(2), and one Sb(3) atom to form distorted SRb2Sb2 tetrahedra that share corners with two equivalent S(6)Rb2Sb3 square pyramids, corners with two equivalent S(4)Rb2Sb2 tetrahedra, corners with two equivalent S(3)Rb3Sb2 trigonal bipyramids, corners with three equivalent S(2)Rb2Sb2 trigonal pyramids,  an edgeedge with one S(6)Rb2Sb3 square pyramid, and  an edgeedge with one S(3)Rb3Sb2 trigonal bipyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb2Sb4S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.802
_cell_length_b   9.632
_cell_length_c   11.536
_cell_angle_alpha   99.719
_cell_angle_beta   85.436
_cell_angle_gamma   102.887
_symmetry_Int_Tables_number   1
_cell_volume   832.221
_cell_formula_units_Z   2
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
  Rb  Rb0  1  0.267  0.331  0.112  1.0
  Rb  Rb1  1  0.423  0.734  0.559  1.0
  Rb  Rb2  1  0.577  0.266  0.441  1.0
  Rb  Rb3  1  0.733  0.669  0.888  1.0
  Sb  Sb4  1  0.028  0.944  0.341  1.0
  Sb  Sb5  1  0.163  0.436  0.816  1.0
  Sb  Sb6  1  0.729  0.137  0.047  1.0
  Sb  Sb7  1  0.502  0.188  0.769  1.0
  Sb  Sb8  1  0.271  0.863  0.953  1.0
  Sb  Sb9  1  0.972  0.056  0.659  1.0
  Sb  Sb10  1  0.837  0.564  0.184  1.0
  Sb  Sb11  1  0.498  0.812  0.231  1.0
  S  S12  1  0.800  0.872  0.155  1.0
  S  S13  1  0.643  0.328  0.951  1.0
  S  S14  1  0.449  0.434  0.713  1.0
  S  S15  1  0.222  0.012  0.529  1.0
  S  S16  1  0.022  0.688  0.352  1.0
  S  S17  1  0.357  0.672  0.049  1.0
  S  S18  1  0.452  0.067  0.157  1.0
  S  S19  1  0.978  0.312  0.648  1.0
  S  S20  1  0.548  0.933  0.843  1.0
  S  S21  1  0.865  0.324  0.223  1.0
  S  S22  1  0.135  0.676  0.777  1.0
  S  S23  1  0.778  0.988  0.471  1.0
  S  S24  1  0.551  0.566  0.287  1.0
  S  S25  1  0.200  0.128  0.845  1.0
[/CIF]
.
The compound described by Rb2Sb4S7 crystallizes in the triclinic P-1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to one S(1), one S(3), one S(6), one S(7), and two equivalent S(2) atoms. In the second Rb site, Rb(2) is bonded in a 6-coordinate geometry to one S(6), one S(7), two equivalent S(3), and two equivalent S(4) atoms. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a see-saw-like geometry to one S(1), one S(5), and two equivalent S(4) atoms. In the second Sb site, Sb(2) is bonded in a 3-coordinate geometry to one S(1), one S(3), one S(5), and one S(7) atom. In the third Sb site, Sb(3) is bonded in a 4-coordinate geometry to one S(1), one S(2), one S(7), and two equivalent S(6) atoms. In the fourth Sb site, Sb(4) is bonded in a distorted rectangular see-saw-like geometry to one S(1), one S(2), one S(3), and one S(6) atom. There are seven inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to one Rb(1), one Sb(1), one Sb(2), one Sb(3), and one Sb(4) atom. In the second S site, S(2) is bonded to two equivalent Rb(1), one Sb(3), and one Sb(4) atom to form distorted SRb2Sb2 trigonal pyramids that share  a cornercorner with one S(6)Rb2Sb3 square pyramid, corners with three equivalent S(7)Rb2Sb2 tetrahedra,  a cornercorner with one S(3)Rb3Sb2 trigonal bipyramid, edges with two equivalent S(6)Rb2Sb3 square pyramids,  an edgeedge with one S(3)Rb3Sb2 trigonal bipyramid, and  an edgeedge with one S(2)Rb2Sb2 trigonal pyramid. In the third S site, S(3) is bonded to one Rb(1), two equivalent Rb(2), one Sb(2), and one Sb(4) atom to form distorted SRb3Sb2 trigonal bipyramids that share corners with two equivalent S(6)Rb2Sb3 square pyramids, corners with two equivalent S(7)Rb2Sb2 tetrahedra, corners with four equivalent S(4)Rb2Sb2 tetrahedra,  a cornercorner with one S(2)Rb2Sb2 trigonal pyramid,  an edgeedge with one S(6)Rb2Sb3 square pyramid,  an edgeedge with one S(7)Rb2Sb2 tetrahedra,  an edgeedge with one S(3)Rb3Sb2 trigonal bipyramid, and  an edgeedge with one S(2)Rb2Sb2 trigonal pyramid. In the fourth S site, S(4) is bonded to two equivalent Rb(2) and two equivalent Sb(1) atoms to form distorted SRb2Sb2 tetrahedra that share corners with two equivalent S(6)Rb2Sb3 square pyramids, corners with two equivalent S(7)Rb2Sb2 tetrahedra, corners with four equivalent S(3)Rb3Sb2 trigonal bipyramids, and edges with two equivalent S(4)Rb2Sb2 tetrahedra. In the fifth S site, S(5) is bonded in a water-like geometry to one Sb(1) and one Sb(2) atom. In the sixth S site, S(6) is bonded to one Rb(1), one Rb(2), one Sb(4), and two equivalent Sb(3) atoms to form distorted SRb2Sb3 square pyramids that share corners with two equivalent S(4)Rb2Sb2 tetrahedra, corners with two equivalent S(7)Rb2Sb2 tetrahedra, corners with two equivalent S(3)Rb3Sb2 trigonal bipyramids,  a cornercorner with one S(2)Rb2Sb2 trigonal pyramid,  an edgeedge with one S(6)Rb2Sb3 square pyramid,  an edgeedge with one S(7)Rb2Sb2 tetrahedra,  an edgeedge with one S(3)Rb3Sb2 trigonal bipyramid, and edges with two equivalent S(2)Rb2Sb2 trigonal pyramids. In the seventh S site, S(7) is bonded to one Rb(1), one Rb(2), one Sb(2), and one Sb(3) atom to form distorted SRb2Sb2 tetrahedra that share corners with two equivalent S(6)Rb2Sb3 square pyramids, corners with two equivalent S(4)Rb2Sb2 tetrahedra, corners with two equivalent S(3)Rb3Sb2 trigonal bipyramids, corners with three equivalent S(2)Rb2Sb2 trigonal pyramids,  an edgeedge with one S(6)Rb2Sb3 square pyramid, and  an edgeedge with one S(3)Rb3Sb2 trigonal bipyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb2Sb4S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.802
_cell_length_b   9.632
_cell_length_c   11.536
_cell_angle_alpha   99.719
_cell_angle_beta   85.436
_cell_angle_gamma   102.887
_symmetry_Int_Tables_number   1
_cell_volume   832.221
_cell_formula_units_Z   2
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
  Rb  Rb0  1  0.267  0.331  0.112  1.0
  Rb  Rb1  1  0.423  0.734  0.559  1.0
  Rb  Rb2  1  0.577  0.266  0.441  1.0
  Rb  Rb3  1  0.733  0.669  0.888  1.0
  Sb  Sb4  1  0.028  0.944  0.341  1.0
  Sb  Sb5  1  0.163  0.436  0.816  1.0
  Sb  Sb6  1  0.729  0.137  0.047  1.0
  Sb  Sb7  1  0.502  0.188  0.769  1.0
  Sb  Sb8  1  0.271  0.863  0.953  1.0
  Sb  Sb9  1  0.972  0.056  0.659  1.0
  Sb  Sb10  1  0.837  0.564  0.184  1.0
  Sb  Sb11  1  0.498  0.812  0.231  1.0
  S  S12  1  0.800  0.872  0.155  1.0
  S  S13  1  0.643  0.328  0.951  1.0
  S  S14  1  0.449  0.434  0.713  1.0
  S  S15  1  0.222  0.012  0.529  1.0
  S  S16  1  0.022  0.688  0.352  1.0
  S  S17  1  0.357  0.672  0.049  1.0
  S  S18  1  0.452  0.067  0.157  1.0
  S  S19  1  0.978  0.312  0.648  1.0
  S  S20  1  0.548  0.933  0.843  1.0
  S  S21  1  0.865  0.324  0.223  1.0
  S  S22  1  0.135  0.676  0.777  1.0
  S  S23  1  0.778  0.988  0.471  1.0
  S  S24  1  0.551  0.566  0.287  1.0
  S  S25  1  0.200  0.128  0.845  1.0
[/CIF]
.