The structure described by Yb3CrS6 crystallizes in the orthorhombic Pnnm space group. There are three inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 8-coordinate geometry to one S(4), one S(6), two equivalent S(1), two equivalent S(2), and two equivalent S(5) atoms. In the second Yb site, Yb(2) is bonded in a 9-coordinate geometry to one S(1), one S(4), one S(5), two equivalent S(2), two equivalent S(3), and two equivalent S(6) atoms. In the third Yb site, Yb(3) is bonded to one S(1), one S(2), one S(4), two equivalent S(3), and two equivalent S(5) atoms to form distorted YbS7 pentagonal bipyramids that share  a cornercorner with one Cr(2)S6 octahedra, edges with two equivalent Cr(1)S6 octahedra, and edges with two equivalent Yb(3)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 19°. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent S(3) and four equivalent S(4) atoms to form CrS6 octahedra that share edges with two equivalent Cr(1)S6 octahedra and edges with four equivalent Yb(3)S7 pentagonal bipyramids. In the second Cr site, Cr(2) is bonded to two equivalent S(1) and four equivalent S(6) atoms to form CrS6 octahedra that share corners with two equivalent Yb(3)S7 pentagonal bipyramids and edges with two equivalent Cr(2)S6 octahedra. There are six inequivalent S sites. In the first S site, S(5) is bonded to one Yb(2), two equivalent Yb(1), and two equivalent Yb(3) atoms to form distorted SYb5 trigonal bipyramids that share corners with two equivalent S(2)Yb5 square pyramids, corners with four equivalent S(3)Yb4Cr trigonal bipyramids, edges with three equivalent S(2)Yb5 square pyramids,  an edgeedge with one S(3)Yb4Cr trigonal bipyramid, edges with two equivalent S(6)Yb3Cr2 trigonal bipyramids, and edges with two equivalent S(5)Yb5 trigonal bipyramids. In the second S site, S(6) is bonded to one Yb(1), two equivalent Yb(2), and two equivalent Cr(2) atoms to form distorted SYb3Cr2 trigonal bipyramids that share corners with four equivalent S(2)Yb5 square pyramids, corners with two equivalent S(6)Yb3Cr2 trigonal bipyramids, corners with two equivalent S(3)Yb4Cr trigonal bipyramids,  an edgeedge with one S(2)Yb5 square pyramid,  an edgeedge with one S(3)Yb4Cr trigonal bipyramid, edges with two equivalent S(5)Yb5 trigonal bipyramids, and edges with three equivalent S(6)Yb3Cr2 trigonal bipyramids. In the third S site, S(1) is bonded in a 4-coordinate geometry to one Yb(2), one Yb(3), two equivalent Yb(1), and one Cr(2) atom. In the fourth S site, S(2) is bonded to one Yb(3), two equivalent Yb(1), and two equivalent Yb(2) atoms to form SYb5 square pyramids that share corners with two equivalent S(5)Yb5 trigonal bipyramids, corners with four equivalent S(6)Yb3Cr2 trigonal bipyramids, corners with four equivalent S(3)Yb4Cr trigonal bipyramids, edges with two equivalent S(2)Yb5 square pyramids,  an edgeedge with one S(6)Yb3Cr2 trigonal bipyramid,  an edgeedge with one S(3)Yb4Cr trigonal bipyramid, and edges with three equivalent S(5)Yb5 trigonal bipyramids. In the fifth S site, S(3) is bonded to two equivalent Yb(2), two equivalent Yb(3), and one Cr(1) atom to form distorted SYb4Cr trigonal bipyramids that share corners with four equivalent S(2)Yb5 square pyramids,  a cornercorner with one S(3)Yb4Cr trigonal bipyramid, corners with two equivalent S(6)Yb3Cr2 trigonal bipyramids, corners with four equivalent S(5)Yb5 trigonal bipyramids,  an edgeedge with one S(2)Yb5 square pyramid,  an edgeedge with one S(6)Yb3Cr2 trigonal bipyramid,  an edgeedge with one S(5)Yb5 trigonal bipyramid, and edges with two equivalent S(3)Yb4Cr trigonal bipyramids. In the sixth S site, S(4) is bonded in a 5-coordinate geometry to one Yb(1), one Yb(2), one Yb(3), and two equivalent Cr(1) atoms. is represented by the CIF file [CIF]
data_Yb3CrS6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.695
_cell_length_b   13.642
_cell_length_c   15.697
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   791.172
_cell_formula_units_Z   4
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
  Yb  Yb0  1  0.000  0.549  0.284  1.0
  Yb  Yb1  1  0.000  0.451  0.716  1.0
  Yb  Yb2  1  0.500  0.951  0.784  1.0
  Yb  Yb3  1  0.500  0.049  0.216  1.0
  Yb  Yb4  1  0.000  0.755  0.099  1.0
  Yb  Yb5  1  0.000  0.245  0.901  1.0
  Yb  Yb6  1  0.500  0.745  0.599  1.0
  Yb  Yb7  1  0.500  0.255  0.401  1.0
  Yb  Yb8  1  0.000  0.319  0.153  1.0
  Yb  Yb9  1  0.000  0.681  0.847  1.0
  Yb  Yb10  1  0.500  0.181  0.653  1.0
  Yb  Yb11  1  0.500  0.819  0.347  1.0
  Cr  Cr12  1  0.000  0.000  0.500  1.0
  Cr  Cr13  1  0.500  0.500  0.000  1.0
  Cr  Cr14  1  0.000  0.000  0.000  1.0
  Cr  Cr15  1  0.500  0.500  0.500  1.0
  S  S16  1  0.000  0.128  0.092  1.0
  S  S17  1  0.000  0.872  0.908  1.0
  S  S18  1  0.500  0.372  0.592  1.0
  S  S19  1  0.500  0.628  0.408  1.0
  S  S20  1  0.000  0.178  0.289  1.0
  S  S21  1  0.000  0.822  0.711  1.0
  S  S22  1  0.500  0.322  0.789  1.0
  S  S23  1  0.500  0.678  0.211  1.0
  S  S24  1  0.000  0.173  0.521  1.0
  S  S25  1  0.000  0.827  0.479  1.0
  S  S26  1  0.500  0.327  0.021  1.0
  S  S27  1  0.500  0.673  0.979  1.0
  S  S28  1  0.000  0.520  0.095  1.0
  S  S29  1  0.000  0.480  0.905  1.0
  S  S30  1  0.500  0.980  0.595  1.0
  S  S31  1  0.500  0.020  0.405  1.0
  S  S32  1  0.000  0.098  0.760  1.0
  S  S33  1  0.000  0.902  0.240  1.0
  S  S34  1  0.500  0.402  0.260  1.0
  S  S35  1  0.500  0.598  0.740  1.0
  S  S36  1  0.000  0.420  0.431  1.0
  S  S37  1  0.000  0.580  0.569  1.0
  S  S38  1  0.500  0.080  0.931  1.0
  S  S39  1  0.500  0.920  0.069  1.0
[/CIF]
.
The structure described by Yb3CrS6 crystallizes in the orthorhombic Pnnm space group. There are three inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 8-coordinate geometry to one S(4), one S(6), two equivalent S(1), two equivalent S(2), and two equivalent S(5) atoms. In the second Yb site, Yb(2) is bonded in a 9-coordinate geometry to one S(1), one S(4), one S(5), two equivalent S(2), two equivalent S(3), and two equivalent S(6) atoms. In the third Yb site, Yb(3) is bonded to one S(1), one S(2), one S(4), two equivalent S(3), and two equivalent S(5) atoms to form distorted YbS7 pentagonal bipyramids that share  a cornercorner with one Cr(2)S6 octahedra, edges with two equivalent Cr(1)S6 octahedra, and edges with two equivalent Yb(3)S7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 19°. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent S(3) and four equivalent S(4) atoms to form CrS6 octahedra that share edges with two equivalent Cr(1)S6 octahedra and edges with four equivalent Yb(3)S7 pentagonal bipyramids. In the second Cr site, Cr(2) is bonded to two equivalent S(1) and four equivalent S(6) atoms to form CrS6 octahedra that share corners with two equivalent Yb(3)S7 pentagonal bipyramids and edges with two equivalent Cr(2)S6 octahedra. There are six inequivalent S sites. In the first S site, S(5) is bonded to one Yb(2), two equivalent Yb(1), and two equivalent Yb(3) atoms to form distorted SYb5 trigonal bipyramids that share corners with two equivalent S(2)Yb5 square pyramids, corners with four equivalent S(3)Yb4Cr trigonal bipyramids, edges with three equivalent S(2)Yb5 square pyramids,  an edgeedge with one S(3)Yb4Cr trigonal bipyramid, edges with two equivalent S(6)Yb3Cr2 trigonal bipyramids, and edges with two equivalent S(5)Yb5 trigonal bipyramids. In the second S site, S(6) is bonded to one Yb(1), two equivalent Yb(2), and two equivalent Cr(2) atoms to form distorted SYb3Cr2 trigonal bipyramids that share corners with four equivalent S(2)Yb5 square pyramids, corners with two equivalent S(6)Yb3Cr2 trigonal bipyramids, corners with two equivalent S(3)Yb4Cr trigonal bipyramids,  an edgeedge with one S(2)Yb5 square pyramid,  an edgeedge with one S(3)Yb4Cr trigonal bipyramid, edges with two equivalent S(5)Yb5 trigonal bipyramids, and edges with three equivalent S(6)Yb3Cr2 trigonal bipyramids. In the third S site, S(1) is bonded in a 4-coordinate geometry to one Yb(2), one Yb(3), two equivalent Yb(1), and one Cr(2) atom. In the fourth S site, S(2) is bonded to one Yb(3), two equivalent Yb(1), and two equivalent Yb(2) atoms to form SYb5 square pyramids that share corners with two equivalent S(5)Yb5 trigonal bipyramids, corners with four equivalent S(6)Yb3Cr2 trigonal bipyramids, corners with four equivalent S(3)Yb4Cr trigonal bipyramids, edges with two equivalent S(2)Yb5 square pyramids,  an edgeedge with one S(6)Yb3Cr2 trigonal bipyramid,  an edgeedge with one S(3)Yb4Cr trigonal bipyramid, and edges with three equivalent S(5)Yb5 trigonal bipyramids. In the fifth S site, S(3) is bonded to two equivalent Yb(2), two equivalent Yb(3), and one Cr(1) atom to form distorted SYb4Cr trigonal bipyramids that share corners with four equivalent S(2)Yb5 square pyramids,  a cornercorner with one S(3)Yb4Cr trigonal bipyramid, corners with two equivalent S(6)Yb3Cr2 trigonal bipyramids, corners with four equivalent S(5)Yb5 trigonal bipyramids,  an edgeedge with one S(2)Yb5 square pyramid,  an edgeedge with one S(6)Yb3Cr2 trigonal bipyramid,  an edgeedge with one S(5)Yb5 trigonal bipyramid, and edges with two equivalent S(3)Yb4Cr trigonal bipyramids. In the sixth S site, S(4) is bonded in a 5-coordinate geometry to one Yb(1), one Yb(2), one Yb(3), and two equivalent Cr(1) atoms. is represented by the CIF file [CIF]
data_Yb3CrS6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.695
_cell_length_b   13.642
_cell_length_c   15.697
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   791.172
_cell_formula_units_Z   4
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
  Yb  Yb0  1  0.000  0.549  0.284  1.0
  Yb  Yb1  1  0.000  0.451  0.716  1.0
  Yb  Yb2  1  0.500  0.951  0.784  1.0
  Yb  Yb3  1  0.500  0.049  0.216  1.0
  Yb  Yb4  1  0.000  0.755  0.099  1.0
  Yb  Yb5  1  0.000  0.245  0.901  1.0
  Yb  Yb6  1  0.500  0.745  0.599  1.0
  Yb  Yb7  1  0.500  0.255  0.401  1.0
  Yb  Yb8  1  0.000  0.319  0.153  1.0
  Yb  Yb9  1  0.000  0.681  0.847  1.0
  Yb  Yb10  1  0.500  0.181  0.653  1.0
  Yb  Yb11  1  0.500  0.819  0.347  1.0
  Cr  Cr12  1  0.000  0.000  0.500  1.0
  Cr  Cr13  1  0.500  0.500  0.000  1.0
  Cr  Cr14  1  0.000  0.000  0.000  1.0
  Cr  Cr15  1  0.500  0.500  0.500  1.0
  S  S16  1  0.000  0.128  0.092  1.0
  S  S17  1  0.000  0.872  0.908  1.0
  S  S18  1  0.500  0.372  0.592  1.0
  S  S19  1  0.500  0.628  0.408  1.0
  S  S20  1  0.000  0.178  0.289  1.0
  S  S21  1  0.000  0.822  0.711  1.0
  S  S22  1  0.500  0.322  0.789  1.0
  S  S23  1  0.500  0.678  0.211  1.0
  S  S24  1  0.000  0.173  0.521  1.0
  S  S25  1  0.000  0.827  0.479  1.0
  S  S26  1  0.500  0.327  0.021  1.0
  S  S27  1  0.500  0.673  0.979  1.0
  S  S28  1  0.000  0.520  0.095  1.0
  S  S29  1  0.000  0.480  0.905  1.0
  S  S30  1  0.500  0.980  0.595  1.0
  S  S31  1  0.500  0.020  0.405  1.0
  S  S32  1  0.000  0.098  0.760  1.0
  S  S33  1  0.000  0.902  0.240  1.0
  S  S34  1  0.500  0.402  0.260  1.0
  S  S35  1  0.500  0.598  0.740  1.0
  S  S36  1  0.000  0.420  0.431  1.0
  S  S37  1  0.000  0.580  0.569  1.0
  S  S38  1  0.500  0.080  0.931  1.0
  S  S39  1  0.500  0.920  0.069  1.0
[/CIF]
.