The structure described by RbSm2I5 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent I(1), two equivalent I(2), two equivalent I(3), and two equivalent I(4) atoms. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 8-coordinate geometry to two equivalent I(2), two equivalent I(3), two equivalent I(4), and two equivalent I(5) atoms. In the second Sm site, Sm(2) is bonded to one I(2), one I(3), one I(4), two equivalent I(1), and two equivalent I(5) atoms to form distorted edge-sharing SmI7 pentagonal bipyramids. There are five inequivalent I sites. In the first I site, I(1) is bonded to two equivalent Rb(1) and two equivalent Sm(2) atoms to form distorted IRb2Sm2 trigonal pyramids that share corners with two equivalent I(3)Rb2Sm3 square pyramids, corners with four equivalent I(4)Rb2Sm3 square pyramids, corners with four equivalent I(5)Sm4 tetrahedra, corners with two equivalent I(2)Rb2Sm3 trigonal bipyramids, corners with two equivalent I(1)Rb2Sm2 trigonal pyramids,  an edgeedge with one I(4)Rb2Sm3 square pyramid, edges with two equivalent I(3)Rb2Sm3 square pyramids, edges with two equivalent I(2)Rb2Sm3 trigonal bipyramids, and  an edgeedge with one I(1)Rb2Sm2 trigonal pyramid. In the second I site, I(2) is bonded to two equivalent Rb(1), one Sm(2), and two equivalent Sm(1) atoms to form distorted IRb2Sm3 trigonal bipyramids that share  a cornercorner with one I(3)Rb2Sm3 square pyramid, corners with five equivalent I(4)Rb2Sm3 square pyramids, corners with two equivalent I(5)Sm4 tetrahedra, corners with four equivalent I(2)Rb2Sm3 trigonal bipyramids, corners with two equivalent I(1)Rb2Sm2 trigonal pyramids, edges with two equivalent I(4)Rb2Sm3 square pyramids, edges with four equivalent I(3)Rb2Sm3 square pyramids, edges with two equivalent I(5)Sm4 tetrahedra, and edges with two equivalent I(1)Rb2Sm2 trigonal pyramids. In the third I site, I(3) is bonded to two equivalent Rb(1), one Sm(2), and two equivalent Sm(1) atoms to form distorted IRb2Sm3 square pyramids that share corners with four equivalent I(3)Rb2Sm3 square pyramids, corners with four equivalent I(4)Rb2Sm3 square pyramids, corners with two equivalent I(5)Sm4 tetrahedra,  a cornercorner with one I(2)Rb2Sm3 trigonal bipyramid, corners with two equivalent I(1)Rb2Sm2 trigonal pyramids,  an edgeedge with one I(4)Rb2Sm3 square pyramid, edges with two equivalent I(5)Sm4 tetrahedra, edges with four equivalent I(2)Rb2Sm3 trigonal bipyramids, edges with two equivalent I(1)Rb2Sm2 trigonal pyramids, and  a faceface with one I(4)Rb2Sm3 square pyramid. In the fourth I site, I(4) is bonded to two equivalent Rb(1), one Sm(2), and two equivalent Sm(1) atoms to form distorted IRb2Sm3 square pyramids that share corners with four equivalent I(3)Rb2Sm3 square pyramids, corners with four equivalent I(5)Sm4 tetrahedra, corners with five equivalent I(2)Rb2Sm3 trigonal bipyramids, corners with four equivalent I(1)Rb2Sm2 trigonal pyramids,  an edgeedge with one I(3)Rb2Sm3 square pyramid, edges with two equivalent I(4)Rb2Sm3 square pyramids,  an edgeedge with one I(5)Sm4 tetrahedra, edges with two equivalent I(2)Rb2Sm3 trigonal bipyramids,  an edgeedge with one I(1)Rb2Sm2 trigonal pyramid, and  a faceface with one I(3)Rb2Sm3 square pyramid. In the fifth I site, I(5) is bonded to two equivalent Sm(1) and two equivalent Sm(2) atoms to form distorted ISm4 tetrahedra that share corners with two equivalent I(3)Rb2Sm3 square pyramids, corners with four equivalent I(4)Rb2Sm3 square pyramids, corners with two equivalent I(5)Sm4 tetrahedra, corners with two equivalent I(2)Rb2Sm3 trigonal bipyramids, corners with four equivalent I(1)Rb2Sm2 trigonal pyramids,  an edgeedge with one I(4)Rb2Sm3 square pyramid, edges with two equivalent I(3)Rb2Sm3 square pyramids,  an edgeedge with one I(5)Sm4 tetrahedra, and edges with two equivalent I(2)Rb2Sm3 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbSm2I5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.789
_cell_length_b   9.783
_cell_length_c   14.132
_cell_angle_alpha   89.236
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1214.915
_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
  Rb  Rb0  1  0.453  0.501  0.828  1.0
  Rb  Rb1  1  0.547  0.499  0.172  1.0
  Rb  Rb2  1  0.953  0.499  0.672  1.0
  Rb  Rb3  1  0.047  0.501  0.328  1.0
  Sm  Sm4  1  0.447  0.994  0.824  1.0
  Sm  Sm5  1  0.553  0.006  0.176  1.0
  Sm  Sm6  1  0.947  0.006  0.676  1.0
  Sm  Sm7  1  0.053  0.994  0.324  1.0
  Sm  Sm8  1  0.413  0.767  0.499  1.0
  Sm  Sm9  1  0.587  0.233  0.501  1.0
  Sm  Sm10  1  0.913  0.233  0.001  1.0
  Sm  Sm11  1  0.087  0.767  0.999  1.0
  I  I12  1  0.335  0.464  0.580  1.0
  I  I13  1  0.665  0.536  0.420  1.0
  I  I14  1  0.835  0.536  0.920  1.0
  I  I15  1  0.165  0.464  0.080  1.0
  I  I16  1  0.654  0.792  0.679  1.0
  I  I17  1  0.346  0.208  0.321  1.0
  I  I18  1  0.154  0.208  0.821  1.0
  I  I19  1  0.846  0.792  0.179  1.0
  I  I20  1  0.183  0.776  0.783  1.0
  I  I21  1  0.817  0.224  0.217  1.0
  I  I22  1  0.683  0.224  0.717  1.0
  I  I23  1  0.317  0.776  0.283  1.0
  I  I24  1  0.040  0.791  0.507  1.0
  I  I25  1  0.960  0.209  0.493  1.0
  I  I26  1  0.540  0.209  0.993  1.0
  I  I27  1  0.460  0.791  0.007  1.0
  I  I28  1  0.838  0.955  0.897  1.0
  I  I29  1  0.162  0.045  0.103  1.0
  I  I30  1  0.338  0.045  0.603  1.0
  I  I31  1  0.662  0.955  0.397  1.0
[/CIF]
.
The structure described by RbSm2I5 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent I(1), two equivalent I(2), two equivalent I(3), and two equivalent I(4) atoms. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 8-coordinate geometry to two equivalent I(2), two equivalent I(3), two equivalent I(4), and two equivalent I(5) atoms. In the second Sm site, Sm(2) is bonded to one I(2), one I(3), one I(4), two equivalent I(1), and two equivalent I(5) atoms to form distorted edge-sharing SmI7 pentagonal bipyramids. There are five inequivalent I sites. In the first I site, I(1) is bonded to two equivalent Rb(1) and two equivalent Sm(2) atoms to form distorted IRb2Sm2 trigonal pyramids that share corners with two equivalent I(3)Rb2Sm3 square pyramids, corners with four equivalent I(4)Rb2Sm3 square pyramids, corners with four equivalent I(5)Sm4 tetrahedra, corners with two equivalent I(2)Rb2Sm3 trigonal bipyramids, corners with two equivalent I(1)Rb2Sm2 trigonal pyramids,  an edgeedge with one I(4)Rb2Sm3 square pyramid, edges with two equivalent I(3)Rb2Sm3 square pyramids, edges with two equivalent I(2)Rb2Sm3 trigonal bipyramids, and  an edgeedge with one I(1)Rb2Sm2 trigonal pyramid. In the second I site, I(2) is bonded to two equivalent Rb(1), one Sm(2), and two equivalent Sm(1) atoms to form distorted IRb2Sm3 trigonal bipyramids that share  a cornercorner with one I(3)Rb2Sm3 square pyramid, corners with five equivalent I(4)Rb2Sm3 square pyramids, corners with two equivalent I(5)Sm4 tetrahedra, corners with four equivalent I(2)Rb2Sm3 trigonal bipyramids, corners with two equivalent I(1)Rb2Sm2 trigonal pyramids, edges with two equivalent I(4)Rb2Sm3 square pyramids, edges with four equivalent I(3)Rb2Sm3 square pyramids, edges with two equivalent I(5)Sm4 tetrahedra, and edges with two equivalent I(1)Rb2Sm2 trigonal pyramids. In the third I site, I(3) is bonded to two equivalent Rb(1), one Sm(2), and two equivalent Sm(1) atoms to form distorted IRb2Sm3 square pyramids that share corners with four equivalent I(3)Rb2Sm3 square pyramids, corners with four equivalent I(4)Rb2Sm3 square pyramids, corners with two equivalent I(5)Sm4 tetrahedra,  a cornercorner with one I(2)Rb2Sm3 trigonal bipyramid, corners with two equivalent I(1)Rb2Sm2 trigonal pyramids,  an edgeedge with one I(4)Rb2Sm3 square pyramid, edges with two equivalent I(5)Sm4 tetrahedra, edges with four equivalent I(2)Rb2Sm3 trigonal bipyramids, edges with two equivalent I(1)Rb2Sm2 trigonal pyramids, and  a faceface with one I(4)Rb2Sm3 square pyramid. In the fourth I site, I(4) is bonded to two equivalent Rb(1), one Sm(2), and two equivalent Sm(1) atoms to form distorted IRb2Sm3 square pyramids that share corners with four equivalent I(3)Rb2Sm3 square pyramids, corners with four equivalent I(5)Sm4 tetrahedra, corners with five equivalent I(2)Rb2Sm3 trigonal bipyramids, corners with four equivalent I(1)Rb2Sm2 trigonal pyramids,  an edgeedge with one I(3)Rb2Sm3 square pyramid, edges with two equivalent I(4)Rb2Sm3 square pyramids,  an edgeedge with one I(5)Sm4 tetrahedra, edges with two equivalent I(2)Rb2Sm3 trigonal bipyramids,  an edgeedge with one I(1)Rb2Sm2 trigonal pyramid, and  a faceface with one I(3)Rb2Sm3 square pyramid. In the fifth I site, I(5) is bonded to two equivalent Sm(1) and two equivalent Sm(2) atoms to form distorted ISm4 tetrahedra that share corners with two equivalent I(3)Rb2Sm3 square pyramids, corners with four equivalent I(4)Rb2Sm3 square pyramids, corners with two equivalent I(5)Sm4 tetrahedra, corners with two equivalent I(2)Rb2Sm3 trigonal bipyramids, corners with four equivalent I(1)Rb2Sm2 trigonal pyramids,  an edgeedge with one I(4)Rb2Sm3 square pyramid, edges with two equivalent I(3)Rb2Sm3 square pyramids,  an edgeedge with one I(5)Sm4 tetrahedra, and edges with two equivalent I(2)Rb2Sm3 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbSm2I5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.789
_cell_length_b   9.783
_cell_length_c   14.132
_cell_angle_alpha   89.236
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1214.915
_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
  Rb  Rb0  1  0.453  0.501  0.828  1.0
  Rb  Rb1  1  0.547  0.499  0.172  1.0
  Rb  Rb2  1  0.953  0.499  0.672  1.0
  Rb  Rb3  1  0.047  0.501  0.328  1.0
  Sm  Sm4  1  0.447  0.994  0.824  1.0
  Sm  Sm5  1  0.553  0.006  0.176  1.0
  Sm  Sm6  1  0.947  0.006  0.676  1.0
  Sm  Sm7  1  0.053  0.994  0.324  1.0
  Sm  Sm8  1  0.413  0.767  0.499  1.0
  Sm  Sm9  1  0.587  0.233  0.501  1.0
  Sm  Sm10  1  0.913  0.233  0.001  1.0
  Sm  Sm11  1  0.087  0.767  0.999  1.0
  I  I12  1  0.335  0.464  0.580  1.0
  I  I13  1  0.665  0.536  0.420  1.0
  I  I14  1  0.835  0.536  0.920  1.0
  I  I15  1  0.165  0.464  0.080  1.0
  I  I16  1  0.654  0.792  0.679  1.0
  I  I17  1  0.346  0.208  0.321  1.0
  I  I18  1  0.154  0.208  0.821  1.0
  I  I19  1  0.846  0.792  0.179  1.0
  I  I20  1  0.183  0.776  0.783  1.0
  I  I21  1  0.817  0.224  0.217  1.0
  I  I22  1  0.683  0.224  0.717  1.0
  I  I23  1  0.317  0.776  0.283  1.0
  I  I24  1  0.040  0.791  0.507  1.0
  I  I25  1  0.960  0.209  0.493  1.0
  I  I26  1  0.540  0.209  0.993  1.0
  I  I27  1  0.460  0.791  0.007  1.0
  I  I28  1  0.838  0.955  0.897  1.0
  I  I29  1  0.162  0.045  0.103  1.0
  I  I30  1  0.338  0.045  0.603  1.0
  I  I31  1  0.662  0.955  0.397  1.0
[/CIF]
.