The compound described by K3Nd3Br10 crystallizes in the monoclinic P2_1 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one Br(1), one Br(10), one Br(2), one Br(5), one Br(6), one Br(7), one Br(8), and one Br(9) atom. In the second K site, K(2) is bonded in a 8-coordinate geometry to one Br(10), one Br(3), one Br(4), one Br(5), one Br(6), one Br(7), one Br(8), and one Br(9) atom. In the third K site, K(3) is bonded in a 8-coordinate geometry to one Br(10), one Br(3), one Br(4), one Br(5), one Br(6), one Br(7), one Br(8), and one Br(9) atom. There are three inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to one Br(1), one Br(2), one Br(3), one Br(4), one Br(5), one Br(8), and one Br(9) atom to form distorted edge-sharing NdBr7 pentagonal bipyramids. In the second Nd site, Nd(2) is bonded to one Br(1), one Br(10), one Br(2), one Br(3), one Br(4), one Br(6), and one Br(7) atom to form distorted edge-sharing NdBr7 pentagonal bipyramids. In the third Nd site, Nd(3) is bonded in a 8-coordinate geometry to one Br(1), one Br(10), one Br(2), one Br(5), one Br(6), one Br(7), one Br(8), and one Br(9) atom. There are ten inequivalent Br sites. In the first Br site, Br(1) is bonded to one K(1), one Nd(1), one Nd(2), and one Nd(3) atom to form distorted BrKNd3 trigonal pyramids that share corners with three equivalent Br(7)K3Nd2 square pyramids, corners with four equivalent Br(2)KNd3 tetrahedra,  a cornercorner with one Br(10)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(8)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(9)K3Nd2 trigonal bipyramid, corners with two equivalent Br(4)K2Nd2 trigonal pyramids,  an edgeedge with one Br(3)K2Nd2 tetrahedra,  an edgeedge with one Br(10)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(8)K3Nd2 trigonal bipyramid, and  an edgeedge with one Br(9)K3Nd2 trigonal bipyramid. In the second Br site, Br(2) is bonded to one K(1), one Nd(1), one Nd(2), and one Nd(3) atom to form BrKNd3 tetrahedra that share  a cornercorner with one Br(7)K3Nd2 square pyramid, corners with two equivalent Br(3)K2Nd2 tetrahedra,  a cornercorner with one Br(10)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(9)K3Nd2 trigonal bipyramid, corners with three equivalent Br(8)K3Nd2 trigonal bipyramids, corners with four equivalent Br(1)KNd3 trigonal pyramids,  an edgeedge with one Br(7)K3Nd2 square pyramid,  an edgeedge with one Br(10)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(9)K3Nd2 trigonal bipyramid, and  an edgeedge with one Br(4)K2Nd2 trigonal pyramid. In the third Br site, Br(3) is bonded to one K(2), one K(3), one Nd(1), and one Nd(2) atom to form distorted BrK2Nd2 tetrahedra that share  a cornercorner with one Br(7)K3Nd2 square pyramid, corners with two equivalent Br(2)KNd3 tetrahedra,  a cornercorner with one Br(10)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(9)K3Nd2 trigonal bipyramid, corners with three equivalent Br(8)K3Nd2 trigonal bipyramids, corners with four equivalent Br(4)K2Nd2 trigonal pyramids,  an edgeedge with one Br(7)K3Nd2 square pyramid,  an edgeedge with one Br(10)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(9)K3Nd2 trigonal bipyramid, and  an edgeedge with one Br(1)KNd3 trigonal pyramid. In the fourth Br site, Br(4) is bonded to one K(2), one K(3), one Nd(1), and one Nd(2) atom to form distorted BrK2Nd2 trigonal pyramids that share corners with three equivalent Br(7)K3Nd2 square pyramids, corners with four equivalent Br(3)K2Nd2 tetrahedra,  a cornercorner with one Br(10)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(8)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(9)K3Nd2 trigonal bipyramid, corners with two equivalent Br(1)KNd3 trigonal pyramids,  an edgeedge with one Br(2)KNd3 tetrahedra,  an edgeedge with one Br(10)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(8)K3Nd2 trigonal bipyramid, and  an edgeedge with one Br(9)K3Nd2 trigonal bipyramid. In the fifth Br site, Br(5) is bonded in a 5-coordinate geometry to one K(1), one K(2), one K(3), one Nd(1), and one Nd(3) atom. In the sixth Br site, Br(6) is bonded in a 5-coordinate geometry to one K(1), one K(2), one K(3), one Nd(2), and one Nd(3) atom. In the seventh Br site, Br(7) is bonded to one K(1), one K(2), one K(3), one Nd(2), and one Nd(3) atom to form distorted BrK3Nd2 square pyramids that share  a cornercorner with one Br(3)K2Nd2 tetrahedra,  a cornercorner with one Br(2)KNd3 tetrahedra, corners with four equivalent Br(9)K3Nd2 trigonal bipyramids, corners with three equivalent Br(4)K2Nd2 trigonal pyramids, corners with three equivalent Br(1)KNd3 trigonal pyramids,  an edgeedge with one Br(3)K2Nd2 tetrahedra,  an edgeedge with one Br(2)KNd3 tetrahedra,  an edgeedge with one Br(10)K3Nd2 trigonal bipyramid, edges with two equivalent Br(8)K3Nd2 trigonal bipyramids, and  a faceface with one Br(10)K3Nd2 trigonal bipyramid. In the eighth Br site, Br(8) is bonded to one K(1), one K(2), one K(3), one Nd(1), and one Nd(3) atom to form distorted BrK3Nd2 trigonal bipyramids that share corners with three equivalent Br(3)K2Nd2 tetrahedra, corners with three equivalent Br(2)KNd3 tetrahedra, corners with four equivalent Br(10)K3Nd2 trigonal bipyramids,  a cornercorner with one Br(4)K2Nd2 trigonal pyramid,  a cornercorner with one Br(1)KNd3 trigonal pyramid, edges with two equivalent Br(7)K3Nd2 square pyramids,  an edgeedge with one Br(9)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(4)K2Nd2 trigonal pyramid,  an edgeedge with one Br(1)KNd3 trigonal pyramid, and  a faceface with one Br(9)K3Nd2 trigonal bipyramid. In the ninth Br site, Br(9) is bonded to one K(1), one K(2), one K(3), one Nd(1), and one Nd(3) atom to form distorted BrK3Nd2 trigonal bipyramids that share corners with four equivalent Br(7)K3Nd2 square pyramids,  a cornercorner with one Br(3)K2Nd2 tetrahedra,  a cornercorner with one Br(2)KNd3 tetrahedra, corners with four equivalent Br(10)K3Nd2 trigonal bipyramids,  a cornercorner with one Br(4)K2Nd2 trigonal pyramid,  a cornercorner with one Br(1)KNd3 trigonal pyramid,  an edgeedge with one Br(3)K2Nd2 tetrahedra,  an edgeedge with one Br(2)KNd3 tetrahedra,  an edgeedge with one Br(8)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(4)K2Nd2 trigonal pyramid,  an edgeedge with one Br(1)KNd3 trigonal pyramid, and  a faceface with one Br(8)K3Nd2 trigonal bipyramid. In the tenth Br site, Br(10) is bonded to one K(1), one K(2), one K(3), one Nd(2), and one Nd(3) atom to form distorted BrK3Nd2 trigonal bipyramids that share  a cornercorner with one Br(3)K2Nd2 tetrahedra,  a cornercorner with one Br(2)KNd3 tetrahedra, corners with four equivalent Br(8)K3Nd2 trigonal bipyramids, corners with four equivalent Br(9)K3Nd2 trigonal bipyramids,  a cornercorner with one Br(4)K2Nd2 trigonal pyramid,  a cornercorner with one Br(1)KNd3 trigonal pyramid,  an edgeedge with one Br(7)K3Nd2 square pyramid,  an edgeedge with one Br(3)K2Nd2 tetrahedra,  an edgeedge with one Br(2)KNd3 tetrahedra,  an edgeedge with one Br(4)K2Nd2 trigonal pyramid,  an edgeedge with one Br(1)KNd3 trigonal pyramid, and  a faceface with one Br(7)K3Nd2 square pyramid. is represented by the CIF card [CIF]
data_K3Nd3Br10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.609
_cell_length_b   8.344
_cell_length_c   9.168
_cell_angle_alpha   86.710
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1039.368
_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
  K  K0  1  0.832  0.300  0.749  1.0
  K  K1  1  0.332  0.700  0.251  1.0
  K  K2  1  0.822  0.295  0.246  1.0
  K  K3  1  0.322  0.705  0.754  1.0
  K  K4  1  0.173  0.209  0.757  1.0
  K  K5  1  0.673  0.791  0.243  1.0
  Nd  Nd6  1  0.004  0.689  0.997  1.0
  Nd  Nd7  1  0.504  0.311  0.003  1.0
  Nd  Nd8  1  0.005  0.836  0.486  1.0
  Nd  Nd9  1  0.505  0.164  0.514  1.0
  Nd  Nd10  1  0.173  0.195  0.261  1.0
  Nd  Nd11  1  0.673  0.805  0.739  1.0
  Br  Br12  1  0.088  0.583  0.295  1.0
  Br  Br13  1  0.588  0.417  0.705  1.0
  Br  Br14  1  0.901  0.915  0.772  1.0
  Br  Br15  1  0.401  0.085  0.228  1.0
  Br  Br16  1  0.903  0.908  0.200  1.0
  Br  Br17  1  0.403  0.092  0.800  1.0
  Br  Br18  1  0.085  0.587  0.714  1.0
  Br  Br19  1  0.585  0.413  0.286  1.0
  Br  Br20  1  0.172  0.927  0.033  1.0
  Br  Br21  1  0.672  0.073  0.967  1.0
  Br  Br22  1  0.811  0.629  0.521  1.0
  Br  Br23  1  0.311  0.371  0.479  1.0
  Br  Br24  1  0.508  0.801  0.517  1.0
  Br  Br25  1  0.008  0.199  0.483  1.0
  Br  Br26  1  0.516  0.689  0.970  1.0
  Br  Br27  1  0.016  0.311  0.030  1.0
  Br  Br28  1  0.289  0.418  0.024  1.0
  Br  Br29  1  0.789  0.582  0.976  1.0
  Br  Br30  1  0.717  0.068  0.506  1.0
  Br  Br31  1  0.217  0.932  0.494  1.0
[/CIF]
.
The compound described by K3Nd3Br10 crystallizes in the monoclinic P2_1 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one Br(1), one Br(10), one Br(2), one Br(5), one Br(6), one Br(7), one Br(8), and one Br(9) atom. In the second K site, K(2) is bonded in a 8-coordinate geometry to one Br(10), one Br(3), one Br(4), one Br(5), one Br(6), one Br(7), one Br(8), and one Br(9) atom. In the third K site, K(3) is bonded in a 8-coordinate geometry to one Br(10), one Br(3), one Br(4), one Br(5), one Br(6), one Br(7), one Br(8), and one Br(9) atom. There are three inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to one Br(1), one Br(2), one Br(3), one Br(4), one Br(5), one Br(8), and one Br(9) atom to form distorted edge-sharing NdBr7 pentagonal bipyramids. In the second Nd site, Nd(2) is bonded to one Br(1), one Br(10), one Br(2), one Br(3), one Br(4), one Br(6), and one Br(7) atom to form distorted edge-sharing NdBr7 pentagonal bipyramids. In the third Nd site, Nd(3) is bonded in a 8-coordinate geometry to one Br(1), one Br(10), one Br(2), one Br(5), one Br(6), one Br(7), one Br(8), and one Br(9) atom. There are ten inequivalent Br sites. In the first Br site, Br(1) is bonded to one K(1), one Nd(1), one Nd(2), and one Nd(3) atom to form distorted BrKNd3 trigonal pyramids that share corners with three equivalent Br(7)K3Nd2 square pyramids, corners with four equivalent Br(2)KNd3 tetrahedra,  a cornercorner with one Br(10)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(8)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(9)K3Nd2 trigonal bipyramid, corners with two equivalent Br(4)K2Nd2 trigonal pyramids,  an edgeedge with one Br(3)K2Nd2 tetrahedra,  an edgeedge with one Br(10)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(8)K3Nd2 trigonal bipyramid, and  an edgeedge with one Br(9)K3Nd2 trigonal bipyramid. In the second Br site, Br(2) is bonded to one K(1), one Nd(1), one Nd(2), and one Nd(3) atom to form BrKNd3 tetrahedra that share  a cornercorner with one Br(7)K3Nd2 square pyramid, corners with two equivalent Br(3)K2Nd2 tetrahedra,  a cornercorner with one Br(10)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(9)K3Nd2 trigonal bipyramid, corners with three equivalent Br(8)K3Nd2 trigonal bipyramids, corners with four equivalent Br(1)KNd3 trigonal pyramids,  an edgeedge with one Br(7)K3Nd2 square pyramid,  an edgeedge with one Br(10)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(9)K3Nd2 trigonal bipyramid, and  an edgeedge with one Br(4)K2Nd2 trigonal pyramid. In the third Br site, Br(3) is bonded to one K(2), one K(3), one Nd(1), and one Nd(2) atom to form distorted BrK2Nd2 tetrahedra that share  a cornercorner with one Br(7)K3Nd2 square pyramid, corners with two equivalent Br(2)KNd3 tetrahedra,  a cornercorner with one Br(10)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(9)K3Nd2 trigonal bipyramid, corners with three equivalent Br(8)K3Nd2 trigonal bipyramids, corners with four equivalent Br(4)K2Nd2 trigonal pyramids,  an edgeedge with one Br(7)K3Nd2 square pyramid,  an edgeedge with one Br(10)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(9)K3Nd2 trigonal bipyramid, and  an edgeedge with one Br(1)KNd3 trigonal pyramid. In the fourth Br site, Br(4) is bonded to one K(2), one K(3), one Nd(1), and one Nd(2) atom to form distorted BrK2Nd2 trigonal pyramids that share corners with three equivalent Br(7)K3Nd2 square pyramids, corners with four equivalent Br(3)K2Nd2 tetrahedra,  a cornercorner with one Br(10)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(8)K3Nd2 trigonal bipyramid,  a cornercorner with one Br(9)K3Nd2 trigonal bipyramid, corners with two equivalent Br(1)KNd3 trigonal pyramids,  an edgeedge with one Br(2)KNd3 tetrahedra,  an edgeedge with one Br(10)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(8)K3Nd2 trigonal bipyramid, and  an edgeedge with one Br(9)K3Nd2 trigonal bipyramid. In the fifth Br site, Br(5) is bonded in a 5-coordinate geometry to one K(1), one K(2), one K(3), one Nd(1), and one Nd(3) atom. In the sixth Br site, Br(6) is bonded in a 5-coordinate geometry to one K(1), one K(2), one K(3), one Nd(2), and one Nd(3) atom. In the seventh Br site, Br(7) is bonded to one K(1), one K(2), one K(3), one Nd(2), and one Nd(3) atom to form distorted BrK3Nd2 square pyramids that share  a cornercorner with one Br(3)K2Nd2 tetrahedra,  a cornercorner with one Br(2)KNd3 tetrahedra, corners with four equivalent Br(9)K3Nd2 trigonal bipyramids, corners with three equivalent Br(4)K2Nd2 trigonal pyramids, corners with three equivalent Br(1)KNd3 trigonal pyramids,  an edgeedge with one Br(3)K2Nd2 tetrahedra,  an edgeedge with one Br(2)KNd3 tetrahedra,  an edgeedge with one Br(10)K3Nd2 trigonal bipyramid, edges with two equivalent Br(8)K3Nd2 trigonal bipyramids, and  a faceface with one Br(10)K3Nd2 trigonal bipyramid. In the eighth Br site, Br(8) is bonded to one K(1), one K(2), one K(3), one Nd(1), and one Nd(3) atom to form distorted BrK3Nd2 trigonal bipyramids that share corners with three equivalent Br(3)K2Nd2 tetrahedra, corners with three equivalent Br(2)KNd3 tetrahedra, corners with four equivalent Br(10)K3Nd2 trigonal bipyramids,  a cornercorner with one Br(4)K2Nd2 trigonal pyramid,  a cornercorner with one Br(1)KNd3 trigonal pyramid, edges with two equivalent Br(7)K3Nd2 square pyramids,  an edgeedge with one Br(9)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(4)K2Nd2 trigonal pyramid,  an edgeedge with one Br(1)KNd3 trigonal pyramid, and  a faceface with one Br(9)K3Nd2 trigonal bipyramid. In the ninth Br site, Br(9) is bonded to one K(1), one K(2), one K(3), one Nd(1), and one Nd(3) atom to form distorted BrK3Nd2 trigonal bipyramids that share corners with four equivalent Br(7)K3Nd2 square pyramids,  a cornercorner with one Br(3)K2Nd2 tetrahedra,  a cornercorner with one Br(2)KNd3 tetrahedra, corners with four equivalent Br(10)K3Nd2 trigonal bipyramids,  a cornercorner with one Br(4)K2Nd2 trigonal pyramid,  a cornercorner with one Br(1)KNd3 trigonal pyramid,  an edgeedge with one Br(3)K2Nd2 tetrahedra,  an edgeedge with one Br(2)KNd3 tetrahedra,  an edgeedge with one Br(8)K3Nd2 trigonal bipyramid,  an edgeedge with one Br(4)K2Nd2 trigonal pyramid,  an edgeedge with one Br(1)KNd3 trigonal pyramid, and  a faceface with one Br(8)K3Nd2 trigonal bipyramid. In the tenth Br site, Br(10) is bonded to one K(1), one K(2), one K(3), one Nd(2), and one Nd(3) atom to form distorted BrK3Nd2 trigonal bipyramids that share  a cornercorner with one Br(3)K2Nd2 tetrahedra,  a cornercorner with one Br(2)KNd3 tetrahedra, corners with four equivalent Br(8)K3Nd2 trigonal bipyramids, corners with four equivalent Br(9)K3Nd2 trigonal bipyramids,  a cornercorner with one Br(4)K2Nd2 trigonal pyramid,  a cornercorner with one Br(1)KNd3 trigonal pyramid,  an edgeedge with one Br(7)K3Nd2 square pyramid,  an edgeedge with one Br(3)K2Nd2 tetrahedra,  an edgeedge with one Br(2)KNd3 tetrahedra,  an edgeedge with one Br(4)K2Nd2 trigonal pyramid,  an edgeedge with one Br(1)KNd3 trigonal pyramid, and  a faceface with one Br(7)K3Nd2 square pyramid. is represented by the CIF card [CIF]
data_K3Nd3Br10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.609
_cell_length_b   8.344
_cell_length_c   9.168
_cell_angle_alpha   86.710
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1039.368
_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
  K  K0  1  0.832  0.300  0.749  1.0
  K  K1  1  0.332  0.700  0.251  1.0
  K  K2  1  0.822  0.295  0.246  1.0
  K  K3  1  0.322  0.705  0.754  1.0
  K  K4  1  0.173  0.209  0.757  1.0
  K  K5  1  0.673  0.791  0.243  1.0
  Nd  Nd6  1  0.004  0.689  0.997  1.0
  Nd  Nd7  1  0.504  0.311  0.003  1.0
  Nd  Nd8  1  0.005  0.836  0.486  1.0
  Nd  Nd9  1  0.505  0.164  0.514  1.0
  Nd  Nd10  1  0.173  0.195  0.261  1.0
  Nd  Nd11  1  0.673  0.805  0.739  1.0
  Br  Br12  1  0.088  0.583  0.295  1.0
  Br  Br13  1  0.588  0.417  0.705  1.0
  Br  Br14  1  0.901  0.915  0.772  1.0
  Br  Br15  1  0.401  0.085  0.228  1.0
  Br  Br16  1  0.903  0.908  0.200  1.0
  Br  Br17  1  0.403  0.092  0.800  1.0
  Br  Br18  1  0.085  0.587  0.714  1.0
  Br  Br19  1  0.585  0.413  0.286  1.0
  Br  Br20  1  0.172  0.927  0.033  1.0
  Br  Br21  1  0.672  0.073  0.967  1.0
  Br  Br22  1  0.811  0.629  0.521  1.0
  Br  Br23  1  0.311  0.371  0.479  1.0
  Br  Br24  1  0.508  0.801  0.517  1.0
  Br  Br25  1  0.008  0.199  0.483  1.0
  Br  Br26  1  0.516  0.689  0.970  1.0
  Br  Br27  1  0.016  0.311  0.030  1.0
  Br  Br28  1  0.289  0.418  0.024  1.0
  Br  Br29  1  0.789  0.582  0.976  1.0
  Br  Br30  1  0.717  0.068  0.506  1.0
  Br  Br31  1  0.217  0.932  0.494  1.0
[/CIF]
.