The compound described by K3GdCl6 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one Cl(1), one Cl(3), one Cl(5), one Cl(6), two equivalent Cl(2), and two equivalent Cl(4) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one Cl(2), one Cl(3), one Cl(5), two equivalent Cl(1), and two equivalent Cl(6) atoms. In the third K site, K(3) is bonded in a 8-coordinate geometry to one Cl(1), one Cl(2), one Cl(5), one Cl(6), two equivalent Cl(3), and two equivalent Cl(4) atoms. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in an octahedral geometry to two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. In the second Gd site, Gd(2) is bonded in an octahedral geometry to two equivalent Cl(1), two equivalent Cl(5), and two equivalent Cl(6) atoms. There are six inequivalent Cl sites. In the first Cl site, Cl(5) is bonded to one K(1), one K(2), one K(3), and one Gd(2) atom to form distorted ClK3Gd trigonal pyramids that share corners with four equivalent Cl(6)K4Gd square pyramids, corners with two equivalent Cl(3)K4Gd trigonal bipyramids, corners with two equivalent Cl(4)K4Gd trigonal bipyramids,  a cornercorner with one Cl(5)K3Gd trigonal pyramid,  an edgeedge with one Cl(6)K4Gd square pyramid,  an edgeedge with one Cl(3)K4Gd trigonal bipyramid, and  an edgeedge with one Cl(4)K4Gd trigonal bipyramid. In the second Cl site, Cl(6) is bonded to one K(1), one K(3), two equivalent K(2), and one Gd(2) atom to form distorted ClK4Gd square pyramids that share  a cornercorner with one Cl(6)K4Gd square pyramid,  a cornercorner with one Cl(3)K4Gd trigonal bipyramid, corners with two equivalent Cl(4)K4Gd trigonal bipyramids, corners with four equivalent Cl(5)K3Gd trigonal pyramids,  an edgeedge with one Cl(6)K4Gd square pyramid,  an edgeedge with one Cl(4)K4Gd trigonal bipyramid, edges with two equivalent Cl(3)K4Gd trigonal bipyramids, and  an edgeedge with one Cl(5)K3Gd trigonal pyramid. In the third Cl site, Cl(1) is bonded in a 5-coordinate geometry to one K(1), one K(3), two equivalent K(2), and one Gd(2) atom. In the fourth Cl site, Cl(2) is bonded in a 5-coordinate geometry to one K(2), one K(3), two equivalent K(1), and one Gd(1) atom. In the fifth Cl site, Cl(3) is bonded to one K(1), one K(2), two equivalent K(3), and one Gd(1) atom to form distorted ClK4Gd trigonal bipyramids that share  a cornercorner with one Cl(6)K4Gd square pyramid, corners with two equivalent Cl(4)K4Gd trigonal bipyramids, corners with three equivalent Cl(3)K4Gd trigonal bipyramids, corners with two equivalent Cl(5)K3Gd trigonal pyramids, edges with two equivalent Cl(6)K4Gd square pyramids, edges with three equivalent Cl(4)K4Gd trigonal bipyramids, and  an edgeedge with one Cl(5)K3Gd trigonal pyramid. In the sixth Cl site, Cl(4) is bonded to two equivalent K(1), two equivalent K(3), and one Gd(1) atom to form distorted ClK4Gd trigonal bipyramids that share corners with two equivalent Cl(6)K4Gd square pyramids,  a cornercorner with one Cl(4)K4Gd trigonal bipyramid, corners with two equivalent Cl(3)K4Gd trigonal bipyramids, corners with two equivalent Cl(5)K3Gd trigonal pyramids,  an edgeedge with one Cl(6)K4Gd square pyramid, edges with two equivalent Cl(4)K4Gd trigonal bipyramids, edges with three equivalent Cl(3)K4Gd trigonal bipyramids, and  an edgeedge with one Cl(5)K3Gd trigonal pyramid. is represented by the CIF file [CIF]
data_K3GdCl6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.793
_cell_length_b   12.548
_cell_length_c   13.096
_cell_angle_alpha   70.910
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1210.245
_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  0.437  0.736  0.314  1.0
  K  K1  1  0.563  0.264  0.686  1.0
  K  K2  1  0.937  0.764  0.686  1.0
  K  K3  1  0.063  0.236  0.314  1.0
  K  K4  1  0.963  0.641  0.099  1.0
  K  K5  1  0.037  0.359  0.901  1.0
  K  K6  1  0.463  0.859  0.901  1.0
  K  K7  1  0.537  0.141  0.099  1.0
  K  K8  1  0.928  0.888  0.321  1.0
  K  K9  1  0.072  0.112  0.679  1.0
  K  K10  1  0.428  0.612  0.679  1.0
  K  K11  1  0.572  0.388  0.321  1.0
  Gd  Gd12  1  0.000  0.500  0.500  1.0
  Gd  Gd13  1  0.500  0.000  0.500  1.0
  Gd  Gd14  1  0.000  0.000  0.000  1.0
  Gd  Gd15  1  0.500  0.500  0.000  1.0
  Cl  Cl16  1  0.496  0.637  0.115  1.0
  Cl  Cl17  1  0.504  0.363  0.885  1.0
  Cl  Cl18  1  0.996  0.863  0.885  1.0
  Cl  Cl19  1  0.004  0.137  0.115  1.0
  Cl  Cl20  1  0.285  0.996  0.343  1.0
  Cl  Cl21  1  0.715  0.004  0.657  1.0
  Cl  Cl22  1  0.785  0.504  0.657  1.0
  Cl  Cl23  1  0.215  0.496  0.343  1.0
  Cl  Cl24  1  0.786  0.609  0.340  1.0
  Cl  Cl25  1  0.214  0.391  0.660  1.0
  Cl  Cl26  1  0.286  0.891  0.660  1.0
  Cl  Cl27  1  0.714  0.109  0.340  1.0
  Cl  Cl28  1  0.641  0.804  0.500  1.0
  Cl  Cl29  1  0.359  0.196  0.500  1.0
  Cl  Cl30  1  0.141  0.696  0.500  1.0
  Cl  Cl31  1  0.859  0.304  0.500  1.0
  Cl  Cl32  1  0.165  0.837  0.149  1.0
  Cl  Cl33  1  0.835  0.163  0.851  1.0
  Cl  Cl34  1  0.665  0.663  0.851  1.0
  Cl  Cl35  1  0.335  0.337  0.149  1.0
  Cl  Cl36  1  0.705  0.911  0.102  1.0
  Cl  Cl37  1  0.295  0.089  0.898  1.0
  Cl  Cl38  1  0.205  0.589  0.898  1.0
  Cl  Cl39  1  0.795  0.411  0.102  1.0
[/CIF]
.
The compound described by K3GdCl6 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one Cl(1), one Cl(3), one Cl(5), one Cl(6), two equivalent Cl(2), and two equivalent Cl(4) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one Cl(2), one Cl(3), one Cl(5), two equivalent Cl(1), and two equivalent Cl(6) atoms. In the third K site, K(3) is bonded in a 8-coordinate geometry to one Cl(1), one Cl(2), one Cl(5), one Cl(6), two equivalent Cl(3), and two equivalent Cl(4) atoms. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in an octahedral geometry to two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. In the second Gd site, Gd(2) is bonded in an octahedral geometry to two equivalent Cl(1), two equivalent Cl(5), and two equivalent Cl(6) atoms. There are six inequivalent Cl sites. In the first Cl site, Cl(5) is bonded to one K(1), one K(2), one K(3), and one Gd(2) atom to form distorted ClK3Gd trigonal pyramids that share corners with four equivalent Cl(6)K4Gd square pyramids, corners with two equivalent Cl(3)K4Gd trigonal bipyramids, corners with two equivalent Cl(4)K4Gd trigonal bipyramids,  a cornercorner with one Cl(5)K3Gd trigonal pyramid,  an edgeedge with one Cl(6)K4Gd square pyramid,  an edgeedge with one Cl(3)K4Gd trigonal bipyramid, and  an edgeedge with one Cl(4)K4Gd trigonal bipyramid. In the second Cl site, Cl(6) is bonded to one K(1), one K(3), two equivalent K(2), and one Gd(2) atom to form distorted ClK4Gd square pyramids that share  a cornercorner with one Cl(6)K4Gd square pyramid,  a cornercorner with one Cl(3)K4Gd trigonal bipyramid, corners with two equivalent Cl(4)K4Gd trigonal bipyramids, corners with four equivalent Cl(5)K3Gd trigonal pyramids,  an edgeedge with one Cl(6)K4Gd square pyramid,  an edgeedge with one Cl(4)K4Gd trigonal bipyramid, edges with two equivalent Cl(3)K4Gd trigonal bipyramids, and  an edgeedge with one Cl(5)K3Gd trigonal pyramid. In the third Cl site, Cl(1) is bonded in a 5-coordinate geometry to one K(1), one K(3), two equivalent K(2), and one Gd(2) atom. In the fourth Cl site, Cl(2) is bonded in a 5-coordinate geometry to one K(2), one K(3), two equivalent K(1), and one Gd(1) atom. In the fifth Cl site, Cl(3) is bonded to one K(1), one K(2), two equivalent K(3), and one Gd(1) atom to form distorted ClK4Gd trigonal bipyramids that share  a cornercorner with one Cl(6)K4Gd square pyramid, corners with two equivalent Cl(4)K4Gd trigonal bipyramids, corners with three equivalent Cl(3)K4Gd trigonal bipyramids, corners with two equivalent Cl(5)K3Gd trigonal pyramids, edges with two equivalent Cl(6)K4Gd square pyramids, edges with three equivalent Cl(4)K4Gd trigonal bipyramids, and  an edgeedge with one Cl(5)K3Gd trigonal pyramid. In the sixth Cl site, Cl(4) is bonded to two equivalent K(1), two equivalent K(3), and one Gd(1) atom to form distorted ClK4Gd trigonal bipyramids that share corners with two equivalent Cl(6)K4Gd square pyramids,  a cornercorner with one Cl(4)K4Gd trigonal bipyramid, corners with two equivalent Cl(3)K4Gd trigonal bipyramids, corners with two equivalent Cl(5)K3Gd trigonal pyramids,  an edgeedge with one Cl(6)K4Gd square pyramid, edges with two equivalent Cl(4)K4Gd trigonal bipyramids, edges with three equivalent Cl(3)K4Gd trigonal bipyramids, and  an edgeedge with one Cl(5)K3Gd trigonal pyramid. is represented by the CIF file [CIF]
data_K3GdCl6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.793
_cell_length_b   12.548
_cell_length_c   13.096
_cell_angle_alpha   70.910
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1210.245
_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  0.437  0.736  0.314  1.0
  K  K1  1  0.563  0.264  0.686  1.0
  K  K2  1  0.937  0.764  0.686  1.0
  K  K3  1  0.063  0.236  0.314  1.0
  K  K4  1  0.963  0.641  0.099  1.0
  K  K5  1  0.037  0.359  0.901  1.0
  K  K6  1  0.463  0.859  0.901  1.0
  K  K7  1  0.537  0.141  0.099  1.0
  K  K8  1  0.928  0.888  0.321  1.0
  K  K9  1  0.072  0.112  0.679  1.0
  K  K10  1  0.428  0.612  0.679  1.0
  K  K11  1  0.572  0.388  0.321  1.0
  Gd  Gd12  1  0.000  0.500  0.500  1.0
  Gd  Gd13  1  0.500  0.000  0.500  1.0
  Gd  Gd14  1  0.000  0.000  0.000  1.0
  Gd  Gd15  1  0.500  0.500  0.000  1.0
  Cl  Cl16  1  0.496  0.637  0.115  1.0
  Cl  Cl17  1  0.504  0.363  0.885  1.0
  Cl  Cl18  1  0.996  0.863  0.885  1.0
  Cl  Cl19  1  0.004  0.137  0.115  1.0
  Cl  Cl20  1  0.285  0.996  0.343  1.0
  Cl  Cl21  1  0.715  0.004  0.657  1.0
  Cl  Cl22  1  0.785  0.504  0.657  1.0
  Cl  Cl23  1  0.215  0.496  0.343  1.0
  Cl  Cl24  1  0.786  0.609  0.340  1.0
  Cl  Cl25  1  0.214  0.391  0.660  1.0
  Cl  Cl26  1  0.286  0.891  0.660  1.0
  Cl  Cl27  1  0.714  0.109  0.340  1.0
  Cl  Cl28  1  0.641  0.804  0.500  1.0
  Cl  Cl29  1  0.359  0.196  0.500  1.0
  Cl  Cl30  1  0.141  0.696  0.500  1.0
  Cl  Cl31  1  0.859  0.304  0.500  1.0
  Cl  Cl32  1  0.165  0.837  0.149  1.0
  Cl  Cl33  1  0.835  0.163  0.851  1.0
  Cl  Cl34  1  0.665  0.663  0.851  1.0
  Cl  Cl35  1  0.335  0.337  0.149  1.0
  Cl  Cl36  1  0.705  0.911  0.102  1.0
  Cl  Cl37  1  0.295  0.089  0.898  1.0
  Cl  Cl38  1  0.205  0.589  0.898  1.0
  Cl  Cl39  1  0.795  0.411  0.102  1.0
[/CIF]
.