The compound described by K2PbCl5 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. Pb(1) is bonded to one Cl(1), one Cl(3), one Cl(4), and four equivalent Cl(2) atoms to form distorted edge-sharing PbCl7 pentagonal bipyramids. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to four equivalent K(1) and one Pb(1) atom to form ClK4Pb trigonal bipyramids that share corners with four equivalent Cl(3)K4Pb trigonal bipyramids, corners with five equivalent Cl(4)K4Pb trigonal bipyramids, corners with eight equivalent Cl(2)K2Pb2 trigonal pyramids,  an edgeedge with one Cl(3)K4Pb trigonal bipyramid, edges with two equivalent Cl(1)K4Pb trigonal bipyramids, edges with two equivalent Cl(4)K4Pb trigonal bipyramids, edges with two equivalent Cl(2)K2Pb2 trigonal pyramids, and  a faceface with one Cl(3)K4Pb trigonal bipyramid. In the second Cl site, Cl(2) is bonded to two equivalent K(1) and two equivalent Pb(1) atoms to form ClK2Pb2 trigonal pyramids that share corners with two equivalent Cl(3)K4Pb trigonal bipyramids, corners with two equivalent Cl(4)K4Pb trigonal bipyramids, corners with four equivalent Cl(1)K4Pb trigonal bipyramids, corners with six equivalent Cl(2)K2Pb2 trigonal pyramids,  an edgeedge with one Cl(1)K4Pb trigonal bipyramid, edges with two equivalent Cl(3)K4Pb trigonal bipyramids, edges with two equivalent Cl(4)K4Pb trigonal bipyramids, and  an edgeedge with one Cl(2)K2Pb2 trigonal pyramid. In the third Cl site, Cl(3) is bonded to four equivalent K(1) and one Pb(1) atom to form ClK4Pb trigonal bipyramids that share  a cornercorner with one Cl(4)K4Pb trigonal bipyramid, corners with four equivalent Cl(1)K4Pb trigonal bipyramids, corners with four equivalent Cl(3)K4Pb trigonal bipyramids, corners with four equivalent Cl(2)K2Pb2 trigonal pyramids,  an edgeedge with one Cl(1)K4Pb trigonal bipyramid, edges with four equivalent Cl(4)K4Pb trigonal bipyramids, edges with four equivalent Cl(2)K2Pb2 trigonal pyramids, and  a faceface with one Cl(1)K4Pb trigonal bipyramid. In the fourth Cl site, Cl(4) is bonded to four equivalent K(1) and one Pb(1) atom to form distorted ClK4Pb trigonal bipyramids that share  a cornercorner with one Cl(3)K4Pb trigonal bipyramid, corners with four equivalent Cl(4)K4Pb trigonal bipyramids, corners with five equivalent Cl(1)K4Pb trigonal bipyramids, corners with four equivalent Cl(2)K2Pb2 trigonal pyramids, edges with two equivalent Cl(1)K4Pb trigonal bipyramids, edges with four equivalent Cl(3)K4Pb trigonal bipyramids, and edges with four equivalent Cl(2)K2Pb2 trigonal pyramids. is represented by the CIF file [CIF]
data_K2PbCl5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.190
_cell_length_b   8.872
_cell_length_c   12.863
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   934.632
_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  0.546  0.500  0.828  1.0
  K  K1  1  0.454  0.500  0.172  1.0
  K  K2  1  0.046  0.500  0.672  1.0
  K  K3  1  0.454  1.000  0.172  1.0
  K  K4  1  0.954  0.500  0.328  1.0
  K  K5  1  0.546  0.000  0.828  1.0
  K  K6  1  0.954  0.000  0.328  1.0
  K  K7  1  0.046  1.000  0.672  1.0
  Pb  Pb8  1  0.570  0.750  0.503  1.0
  Pb  Pb9  1  0.430  0.250  0.497  1.0
  Pb  Pb10  1  0.070  0.250  0.997  1.0
  Pb  Pb11  1  0.930  0.750  0.003  1.0
  Cl  Cl12  1  0.922  0.750  0.513  1.0
  Cl  Cl13  1  0.078  0.250  0.487  1.0
  Cl  Cl14  1  0.422  0.250  0.987  1.0
  Cl  Cl15  1  0.578  0.750  0.013  1.0
  Cl  Cl16  1  0.664  0.042  0.582  1.0
  Cl  Cl17  1  0.336  0.958  0.418  1.0
  Cl  Cl18  1  0.164  0.958  0.918  1.0
  Cl  Cl19  1  0.336  0.542  0.418  1.0
  Cl  Cl20  1  0.836  0.042  0.082  1.0
  Cl  Cl21  1  0.664  0.458  0.582  1.0
  Cl  Cl22  1  0.836  0.458  0.082  1.0
  Cl  Cl23  1  0.164  0.542  0.918  1.0
  Cl  Cl24  1  0.832  0.750  0.797  1.0
  Cl  Cl25  1  0.168  0.250  0.203  1.0
  Cl  Cl26  1  0.332  0.250  0.703  1.0
  Cl  Cl27  1  0.668  0.750  0.297  1.0
  Cl  Cl28  1  0.368  0.750  0.675  1.0
  Cl  Cl29  1  0.632  0.250  0.325  1.0
  Cl  Cl30  1  0.868  0.250  0.825  1.0
  Cl  Cl31  1  0.132  0.750  0.175  1.0
[/CIF]
.
The compound described by K2PbCl5 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. Pb(1) is bonded to one Cl(1), one Cl(3), one Cl(4), and four equivalent Cl(2) atoms to form distorted edge-sharing PbCl7 pentagonal bipyramids. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to four equivalent K(1) and one Pb(1) atom to form ClK4Pb trigonal bipyramids that share corners with four equivalent Cl(3)K4Pb trigonal bipyramids, corners with five equivalent Cl(4)K4Pb trigonal bipyramids, corners with eight equivalent Cl(2)K2Pb2 trigonal pyramids,  an edgeedge with one Cl(3)K4Pb trigonal bipyramid, edges with two equivalent Cl(1)K4Pb trigonal bipyramids, edges with two equivalent Cl(4)K4Pb trigonal bipyramids, edges with two equivalent Cl(2)K2Pb2 trigonal pyramids, and  a faceface with one Cl(3)K4Pb trigonal bipyramid. In the second Cl site, Cl(2) is bonded to two equivalent K(1) and two equivalent Pb(1) atoms to form ClK2Pb2 trigonal pyramids that share corners with two equivalent Cl(3)K4Pb trigonal bipyramids, corners with two equivalent Cl(4)K4Pb trigonal bipyramids, corners with four equivalent Cl(1)K4Pb trigonal bipyramids, corners with six equivalent Cl(2)K2Pb2 trigonal pyramids,  an edgeedge with one Cl(1)K4Pb trigonal bipyramid, edges with two equivalent Cl(3)K4Pb trigonal bipyramids, edges with two equivalent Cl(4)K4Pb trigonal bipyramids, and  an edgeedge with one Cl(2)K2Pb2 trigonal pyramid. In the third Cl site, Cl(3) is bonded to four equivalent K(1) and one Pb(1) atom to form ClK4Pb trigonal bipyramids that share  a cornercorner with one Cl(4)K4Pb trigonal bipyramid, corners with four equivalent Cl(1)K4Pb trigonal bipyramids, corners with four equivalent Cl(3)K4Pb trigonal bipyramids, corners with four equivalent Cl(2)K2Pb2 trigonal pyramids,  an edgeedge with one Cl(1)K4Pb trigonal bipyramid, edges with four equivalent Cl(4)K4Pb trigonal bipyramids, edges with four equivalent Cl(2)K2Pb2 trigonal pyramids, and  a faceface with one Cl(1)K4Pb trigonal bipyramid. In the fourth Cl site, Cl(4) is bonded to four equivalent K(1) and one Pb(1) atom to form distorted ClK4Pb trigonal bipyramids that share  a cornercorner with one Cl(3)K4Pb trigonal bipyramid, corners with four equivalent Cl(4)K4Pb trigonal bipyramids, corners with five equivalent Cl(1)K4Pb trigonal bipyramids, corners with four equivalent Cl(2)K2Pb2 trigonal pyramids, edges with two equivalent Cl(1)K4Pb trigonal bipyramids, edges with four equivalent Cl(3)K4Pb trigonal bipyramids, and edges with four equivalent Cl(2)K2Pb2 trigonal pyramids. is represented by the CIF file [CIF]
data_K2PbCl5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.190
_cell_length_b   8.872
_cell_length_c   12.863
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   934.632
_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  0.546  0.500  0.828  1.0
  K  K1  1  0.454  0.500  0.172  1.0
  K  K2  1  0.046  0.500  0.672  1.0
  K  K3  1  0.454  1.000  0.172  1.0
  K  K4  1  0.954  0.500  0.328  1.0
  K  K5  1  0.546  0.000  0.828  1.0
  K  K6  1  0.954  0.000  0.328  1.0
  K  K7  1  0.046  1.000  0.672  1.0
  Pb  Pb8  1  0.570  0.750  0.503  1.0
  Pb  Pb9  1  0.430  0.250  0.497  1.0
  Pb  Pb10  1  0.070  0.250  0.997  1.0
  Pb  Pb11  1  0.930  0.750  0.003  1.0
  Cl  Cl12  1  0.922  0.750  0.513  1.0
  Cl  Cl13  1  0.078  0.250  0.487  1.0
  Cl  Cl14  1  0.422  0.250  0.987  1.0
  Cl  Cl15  1  0.578  0.750  0.013  1.0
  Cl  Cl16  1  0.664  0.042  0.582  1.0
  Cl  Cl17  1  0.336  0.958  0.418  1.0
  Cl  Cl18  1  0.164  0.958  0.918  1.0
  Cl  Cl19  1  0.336  0.542  0.418  1.0
  Cl  Cl20  1  0.836  0.042  0.082  1.0
  Cl  Cl21  1  0.664  0.458  0.582  1.0
  Cl  Cl22  1  0.836  0.458  0.082  1.0
  Cl  Cl23  1  0.164  0.542  0.918  1.0
  Cl  Cl24  1  0.832  0.750  0.797  1.0
  Cl  Cl25  1  0.168  0.250  0.203  1.0
  Cl  Cl26  1  0.332  0.250  0.703  1.0
  Cl  Cl27  1  0.668  0.750  0.297  1.0
  Cl  Cl28  1  0.368  0.750  0.675  1.0
  Cl  Cl29  1  0.632  0.250  0.325  1.0
  Cl  Cl30  1  0.868  0.250  0.825  1.0
  Cl  Cl31  1  0.132  0.750  0.175  1.0
[/CIF]
.