The structure described by K2NdI5 crystallizes in the orthorhombic Pnma space group. K(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. Nd(1) is bonded to one I(1), one I(3), one I(4), and four equivalent I(2) atoms to form distorted edge-sharing NdI7 pentagonal bipyramids. There are four inequivalent I sites. In the first I site, I(1) is bonded to four equivalent K(1) and one Nd(1) atom to form distorted IK4Nd trigonal bipyramids that share  a cornercorner with one I(4)K4Nd trigonal bipyramid, corners with four equivalent I(1)K4Nd trigonal bipyramids, corners with five equivalent I(3)K4Nd trigonal bipyramids, corners with four equivalent I(2)K2Nd2 trigonal pyramids, edges with two equivalent I(3)K4Nd trigonal bipyramids, edges with four equivalent I(4)K4Nd trigonal bipyramids, and edges with four equivalent I(2)K2Nd2 trigonal pyramids. In the second I site, I(2) is bonded to two equivalent K(1) and two equivalent Nd(1) atoms to form distorted IK2Nd2 trigonal pyramids that share corners with two equivalent I(1)K4Nd trigonal bipyramids, corners with two equivalent I(4)K4Nd trigonal bipyramids, corners with four equivalent I(3)K4Nd trigonal bipyramids, corners with six equivalent I(2)K2Nd2 trigonal pyramids,  an edgeedge with one I(3)K4Nd trigonal bipyramid, edges with two equivalent I(1)K4Nd trigonal bipyramids, edges with two equivalent I(4)K4Nd trigonal bipyramids, and  an edgeedge with one I(2)K2Nd2 trigonal pyramid. In the third I site, I(3) is bonded to four equivalent K(1) and one Nd(1) atom to form IK4Nd trigonal bipyramids that share corners with four equivalent I(4)K4Nd trigonal bipyramids, corners with five equivalent I(1)K4Nd trigonal bipyramids, corners with eight equivalent I(2)K2Nd2 trigonal pyramids,  an edgeedge with one I(4)K4Nd trigonal bipyramid, edges with two equivalent I(1)K4Nd trigonal bipyramids, edges with two equivalent I(3)K4Nd trigonal bipyramids, edges with two equivalent I(2)K2Nd2 trigonal pyramids, and  a faceface with one I(4)K4Nd trigonal bipyramid. In the fourth I site, I(4) is bonded to four equivalent K(1) and one Nd(1) atom to form IK4Nd trigonal bipyramids that share  a cornercorner with one I(1)K4Nd trigonal bipyramid, corners with four equivalent I(3)K4Nd trigonal bipyramids, corners with four equivalent I(4)K4Nd trigonal bipyramids, corners with four equivalent I(2)K2Nd2 trigonal pyramids,  an edgeedge with one I(3)K4Nd trigonal bipyramid, edges with four equivalent I(1)K4Nd trigonal bipyramids, edges with four equivalent I(2)K2Nd2 trigonal pyramids, and  a faceface with one I(3)K4Nd trigonal bipyramid. is represented by the CIF file [CIF]
data_K2NdI5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.183
_cell_length_b   9.845
_cell_length_c   14.428
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1304.460
_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
  K  K0  1  0.945  0.003  0.827  1.0
  K  K1  1  0.055  0.997  0.173  1.0
  K  K2  1  0.445  0.997  0.673  1.0
  K  K3  1  0.055  0.503  0.173  1.0
  K  K4  1  0.555  0.003  0.327  1.0
  K  K5  1  0.945  0.497  0.827  1.0
  K  K6  1  0.555  0.497  0.327  1.0
  K  K7  1  0.445  0.503  0.673  1.0
  Nd  Nd8  1  0.918  0.750  0.506  1.0
  Nd  Nd9  1  0.082  0.250  0.494  1.0
  Nd  Nd10  1  0.418  0.250  0.994  1.0
  Nd  Nd11  1  0.582  0.750  0.006  1.0
  I  I12  1  0.130  0.750  0.681  1.0
  I  I13  1  0.870  0.250  0.319  1.0
  I  I14  1  0.630  0.250  0.819  1.0
  I  I15  1  0.370  0.750  0.181  1.0
  I  I16  1  0.831  0.046  0.578  1.0
  I  I17  1  0.169  0.954  0.422  1.0
  I  I18  1  0.331  0.954  0.922  1.0
  I  I19  1  0.169  0.546  0.422  1.0
  I  I20  1  0.669  0.046  0.078  1.0
  I  I21  1  0.831  0.454  0.578  1.0
  I  I22  1  0.669  0.454  0.078  1.0
  I  I23  1  0.331  0.546  0.922  1.0
  I  I24  1  0.566  0.750  0.507  1.0
  I  I25  1  0.434  0.250  0.493  1.0
  I  I26  1  0.066  0.250  0.993  1.0
  I  I27  1  0.934  0.750  0.007  1.0
  I  I28  1  0.665  0.750  0.792  1.0
  I  I29  1  0.335  0.250  0.208  1.0
  I  I30  1  0.165  0.250  0.708  1.0
  I  I31  1  0.835  0.750  0.292  1.0
[/CIF]
.
The structure described by K2NdI5 crystallizes in the orthorhombic Pnma space group. K(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. Nd(1) is bonded to one I(1), one I(3), one I(4), and four equivalent I(2) atoms to form distorted edge-sharing NdI7 pentagonal bipyramids. There are four inequivalent I sites. In the first I site, I(1) is bonded to four equivalent K(1) and one Nd(1) atom to form distorted IK4Nd trigonal bipyramids that share  a cornercorner with one I(4)K4Nd trigonal bipyramid, corners with four equivalent I(1)K4Nd trigonal bipyramids, corners with five equivalent I(3)K4Nd trigonal bipyramids, corners with four equivalent I(2)K2Nd2 trigonal pyramids, edges with two equivalent I(3)K4Nd trigonal bipyramids, edges with four equivalent I(4)K4Nd trigonal bipyramids, and edges with four equivalent I(2)K2Nd2 trigonal pyramids. In the second I site, I(2) is bonded to two equivalent K(1) and two equivalent Nd(1) atoms to form distorted IK2Nd2 trigonal pyramids that share corners with two equivalent I(1)K4Nd trigonal bipyramids, corners with two equivalent I(4)K4Nd trigonal bipyramids, corners with four equivalent I(3)K4Nd trigonal bipyramids, corners with six equivalent I(2)K2Nd2 trigonal pyramids,  an edgeedge with one I(3)K4Nd trigonal bipyramid, edges with two equivalent I(1)K4Nd trigonal bipyramids, edges with two equivalent I(4)K4Nd trigonal bipyramids, and  an edgeedge with one I(2)K2Nd2 trigonal pyramid. In the third I site, I(3) is bonded to four equivalent K(1) and one Nd(1) atom to form IK4Nd trigonal bipyramids that share corners with four equivalent I(4)K4Nd trigonal bipyramids, corners with five equivalent I(1)K4Nd trigonal bipyramids, corners with eight equivalent I(2)K2Nd2 trigonal pyramids,  an edgeedge with one I(4)K4Nd trigonal bipyramid, edges with two equivalent I(1)K4Nd trigonal bipyramids, edges with two equivalent I(3)K4Nd trigonal bipyramids, edges with two equivalent I(2)K2Nd2 trigonal pyramids, and  a faceface with one I(4)K4Nd trigonal bipyramid. In the fourth I site, I(4) is bonded to four equivalent K(1) and one Nd(1) atom to form IK4Nd trigonal bipyramids that share  a cornercorner with one I(1)K4Nd trigonal bipyramid, corners with four equivalent I(3)K4Nd trigonal bipyramids, corners with four equivalent I(4)K4Nd trigonal bipyramids, corners with four equivalent I(2)K2Nd2 trigonal pyramids,  an edgeedge with one I(3)K4Nd trigonal bipyramid, edges with four equivalent I(1)K4Nd trigonal bipyramids, edges with four equivalent I(2)K2Nd2 trigonal pyramids, and  a faceface with one I(3)K4Nd trigonal bipyramid. is represented by the CIF file [CIF]
data_K2NdI5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.183
_cell_length_b   9.845
_cell_length_c   14.428
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1304.460
_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
  K  K0  1  0.945  0.003  0.827  1.0
  K  K1  1  0.055  0.997  0.173  1.0
  K  K2  1  0.445  0.997  0.673  1.0
  K  K3  1  0.055  0.503  0.173  1.0
  K  K4  1  0.555  0.003  0.327  1.0
  K  K5  1  0.945  0.497  0.827  1.0
  K  K6  1  0.555  0.497  0.327  1.0
  K  K7  1  0.445  0.503  0.673  1.0
  Nd  Nd8  1  0.918  0.750  0.506  1.0
  Nd  Nd9  1  0.082  0.250  0.494  1.0
  Nd  Nd10  1  0.418  0.250  0.994  1.0
  Nd  Nd11  1  0.582  0.750  0.006  1.0
  I  I12  1  0.130  0.750  0.681  1.0
  I  I13  1  0.870  0.250  0.319  1.0
  I  I14  1  0.630  0.250  0.819  1.0
  I  I15  1  0.370  0.750  0.181  1.0
  I  I16  1  0.831  0.046  0.578  1.0
  I  I17  1  0.169  0.954  0.422  1.0
  I  I18  1  0.331  0.954  0.922  1.0
  I  I19  1  0.169  0.546  0.422  1.0
  I  I20  1  0.669  0.046  0.078  1.0
  I  I21  1  0.831  0.454  0.578  1.0
  I  I22  1  0.669  0.454  0.078  1.0
  I  I23  1  0.331  0.546  0.922  1.0
  I  I24  1  0.566  0.750  0.507  1.0
  I  I25  1  0.434  0.250  0.493  1.0
  I  I26  1  0.066  0.250  0.993  1.0
  I  I27  1  0.934  0.750  0.007  1.0
  I  I28  1  0.665  0.750  0.792  1.0
  I  I29  1  0.335  0.250  0.208  1.0
  I  I30  1  0.165  0.250  0.708  1.0
  I  I31  1  0.835  0.750  0.292  1.0
[/CIF]
.