The material described by K2SbCl5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to one Cl(5), two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. In the second K site, K(2) is bonded to one Cl(1), one Cl(2), one Cl(4), two equivalent Cl(3), and two equivalent Cl(5) atoms to form distorted KCl7 pentagonal bipyramids that share corners with two equivalent K(2)Cl7 pentagonal bipyramids, corners with three equivalent Sb(1)Cl5 square pyramids,  an edgeedge with one K(2)Cl7 pentagonal bipyramid, and edges with two equivalent Sb(1)Cl5 square pyramids. Sb(1) is bonded to one Cl(1), one Cl(2), one Cl(3), one Cl(4), and one Cl(5) atom to form SbCl5 square pyramids that share corners with three equivalent K(2)Cl7 pentagonal bipyramids and edges with two equivalent K(2)Cl7 pentagonal bipyramids. There are five inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted rectangular see-saw-like geometry to one K(2), two equivalent K(1), and one Sb(1) atom. In the second Cl site, Cl(2) is bonded to one K(2), two equivalent K(1), and one Sb(1) atom to form distorted ClK3Sb tetrahedra that share corners with five equivalent Cl(3)K4Sb square pyramids, corners with five equivalent Cl(5)K3Sb tetrahedra,  an edgeedge with one Cl(3)K4Sb square pyramid, and  an edgeedge with one Cl(2)K3Sb tetrahedra. In the third Cl site, Cl(3) is bonded to two equivalent K(1), two equivalent K(2), and one Sb(1) atom to form ClK4Sb square pyramids that share corners with two equivalent Cl(3)K4Sb square pyramids,  a cornercorner with one Cl(5)K3Sb tetrahedra, corners with five equivalent Cl(2)K3Sb tetrahedra,  an edgeedge with one Cl(3)K4Sb square pyramid,  an edgeedge with one Cl(2)K3Sb tetrahedra, and edges with three equivalent Cl(5)K3Sb tetrahedra. In the fourth Cl site, Cl(4) is bonded in a rectangular see-saw-like geometry to one K(2), two equivalent K(1), and one Sb(1) atom. In the fifth Cl site, Cl(5) is bonded to one K(1), two equivalent K(2), and one Sb(1) atom to form distorted ClK3Sb tetrahedra that share  a cornercorner with one Cl(3)K4Sb square pyramid, corners with two equivalent Cl(5)K3Sb tetrahedra, corners with five equivalent Cl(2)K3Sb tetrahedra, and edges with three equivalent Cl(3)K4Sb square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2SbCl5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.475
_cell_length_b   8.902
_cell_length_c   8.937
_cell_angle_alpha   69.688
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   930.745
_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  0.673  0.910  0.184  1.0
  K  K1  1  0.128  0.157  0.373  1.0
  K  K2  1  0.628  0.343  0.627  1.0
  K  K3  1  0.872  0.843  0.627  1.0
  K  K4  1  0.827  0.410  0.184  1.0
  K  K5  1  0.327  0.090  0.816  1.0
  K  K6  1  0.372  0.657  0.373  1.0
  K  K7  1  0.173  0.590  0.816  1.0
  Sb  Sb8  1  0.494  0.300  0.185  1.0
  Sb  Sb9  1  0.994  0.200  0.815  1.0
  Sb  Sb10  1  0.506  0.700  0.815  1.0
  Sb  Sb11  1  0.006  0.800  0.185  1.0
  Cl  Cl12  1  0.885  0.643  0.389  1.0
  Cl  Cl13  1  0.425  0.036  0.169  1.0
  Cl  Cl14  1  0.925  0.464  0.831  1.0
  Cl  Cl15  1  0.575  0.964  0.831  1.0
  Cl  Cl16  1  0.906  0.050  0.243  1.0
  Cl  Cl17  1  0.406  0.450  0.757  1.0
  Cl  Cl18  1  0.094  0.950  0.757  1.0
  Cl  Cl19  1  0.594  0.550  0.243  1.0
  Cl  Cl20  1  0.847  0.797  0.991  1.0
  Cl  Cl21  1  0.347  0.703  0.009  1.0
  Cl  Cl22  1  0.153  0.203  0.009  1.0
  Cl  Cl23  1  0.653  0.297  0.991  1.0
  Cl  Cl24  1  0.139  0.789  0.417  1.0
  Cl  Cl25  1  0.615  0.143  0.389  1.0
  Cl  Cl26  1  0.861  0.211  0.583  1.0
  Cl  Cl27  1  0.361  0.289  0.417  1.0
  Cl  Cl28  1  0.639  0.711  0.583  1.0
  Cl  Cl29  1  0.385  0.857  0.611  1.0
  Cl  Cl30  1  0.115  0.357  0.611  1.0
  Cl  Cl31  1  0.075  0.536  0.169  1.0
[/CIF]
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The material described by K2SbCl5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to one Cl(5), two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. In the second K site, K(2) is bonded to one Cl(1), one Cl(2), one Cl(4), two equivalent Cl(3), and two equivalent Cl(5) atoms to form distorted KCl7 pentagonal bipyramids that share corners with two equivalent K(2)Cl7 pentagonal bipyramids, corners with three equivalent Sb(1)Cl5 square pyramids,  an edgeedge with one K(2)Cl7 pentagonal bipyramid, and edges with two equivalent Sb(1)Cl5 square pyramids. Sb(1) is bonded to one Cl(1), one Cl(2), one Cl(3), one Cl(4), and one Cl(5) atom to form SbCl5 square pyramids that share corners with three equivalent K(2)Cl7 pentagonal bipyramids and edges with two equivalent K(2)Cl7 pentagonal bipyramids. There are five inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted rectangular see-saw-like geometry to one K(2), two equivalent K(1), and one Sb(1) atom. In the second Cl site, Cl(2) is bonded to one K(2), two equivalent K(1), and one Sb(1) atom to form distorted ClK3Sb tetrahedra that share corners with five equivalent Cl(3)K4Sb square pyramids, corners with five equivalent Cl(5)K3Sb tetrahedra,  an edgeedge with one Cl(3)K4Sb square pyramid, and  an edgeedge with one Cl(2)K3Sb tetrahedra. In the third Cl site, Cl(3) is bonded to two equivalent K(1), two equivalent K(2), and one Sb(1) atom to form ClK4Sb square pyramids that share corners with two equivalent Cl(3)K4Sb square pyramids,  a cornercorner with one Cl(5)K3Sb tetrahedra, corners with five equivalent Cl(2)K3Sb tetrahedra,  an edgeedge with one Cl(3)K4Sb square pyramid,  an edgeedge with one Cl(2)K3Sb tetrahedra, and edges with three equivalent Cl(5)K3Sb tetrahedra. In the fourth Cl site, Cl(4) is bonded in a rectangular see-saw-like geometry to one K(2), two equivalent K(1), and one Sb(1) atom. In the fifth Cl site, Cl(5) is bonded to one K(1), two equivalent K(2), and one Sb(1) atom to form distorted ClK3Sb tetrahedra that share  a cornercorner with one Cl(3)K4Sb square pyramid, corners with two equivalent Cl(5)K3Sb tetrahedra, corners with five equivalent Cl(2)K3Sb tetrahedra, and edges with three equivalent Cl(3)K4Sb square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2SbCl5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.475
_cell_length_b   8.902
_cell_length_c   8.937
_cell_angle_alpha   69.688
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   930.745
_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  0.673  0.910  0.184  1.0
  K  K1  1  0.128  0.157  0.373  1.0
  K  K2  1  0.628  0.343  0.627  1.0
  K  K3  1  0.872  0.843  0.627  1.0
  K  K4  1  0.827  0.410  0.184  1.0
  K  K5  1  0.327  0.090  0.816  1.0
  K  K6  1  0.372  0.657  0.373  1.0
  K  K7  1  0.173  0.590  0.816  1.0
  Sb  Sb8  1  0.494  0.300  0.185  1.0
  Sb  Sb9  1  0.994  0.200  0.815  1.0
  Sb  Sb10  1  0.506  0.700  0.815  1.0
  Sb  Sb11  1  0.006  0.800  0.185  1.0
  Cl  Cl12  1  0.885  0.643  0.389  1.0
  Cl  Cl13  1  0.425  0.036  0.169  1.0
  Cl  Cl14  1  0.925  0.464  0.831  1.0
  Cl  Cl15  1  0.575  0.964  0.831  1.0
  Cl  Cl16  1  0.906  0.050  0.243  1.0
  Cl  Cl17  1  0.406  0.450  0.757  1.0
  Cl  Cl18  1  0.094  0.950  0.757  1.0
  Cl  Cl19  1  0.594  0.550  0.243  1.0
  Cl  Cl20  1  0.847  0.797  0.991  1.0
  Cl  Cl21  1  0.347  0.703  0.009  1.0
  Cl  Cl22  1  0.153  0.203  0.009  1.0
  Cl  Cl23  1  0.653  0.297  0.991  1.0
  Cl  Cl24  1  0.139  0.789  0.417  1.0
  Cl  Cl25  1  0.615  0.143  0.389  1.0
  Cl  Cl26  1  0.861  0.211  0.583  1.0
  Cl  Cl27  1  0.361  0.289  0.417  1.0
  Cl  Cl28  1  0.639  0.711  0.583  1.0
  Cl  Cl29  1  0.385  0.857  0.611  1.0
  Cl  Cl30  1  0.115  0.357  0.611  1.0
  Cl  Cl31  1  0.075  0.536  0.169  1.0
[/CIF]
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