The material described by KY2Cl7 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one Cl(2), one Cl(3), one Cl(4), one Cl(5), one Cl(6), one Cl(7), and two equivalent Cl(1) atoms. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one Cl(1), one Cl(2), one Cl(3), one Cl(4), one Cl(5), one Cl(6), and one Cl(7) atom to form a mixture of distorted face and edge-sharing YCl7 pentagonal bipyramids. In the second Y site, Y(2) is bonded to one Cl(1), one Cl(2), one Cl(3), one Cl(4), one Cl(5), one Cl(6), and one Cl(7) atom to form a mixture of distorted face and edge-sharing YCl7 pentagonal bipyramids. There are seven inequivalent Cl sites. In the first Cl site, Cl(6) is bonded in a distorted T-shaped geometry to one K(1), one Y(1), and one Y(2) atom. In the second Cl site, Cl(7) is bonded in a trigonal non-coplanar geometry to one K(1), one Y(1), and one Y(2) atom. In the third Cl site, Cl(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one Y(1), and one Y(2) atom. In the fourth Cl site, Cl(2) is bonded in a 3-coordinate geometry to one K(1), one Y(1), and one Y(2) atom. In the fifth Cl site, Cl(3) is bonded in a distorted L-shaped geometry to one K(1), one Y(1), and one Y(2) atom. In the sixth Cl site, Cl(4) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Y(1), and one Y(2) atom. In the seventh Cl site, Cl(5) is bonded in a trigonal non-coplanar geometry to one K(1), one Y(1), and one Y(2) atom. is represented by the CIF file [CIF]
data_KY2Cl7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.599
_cell_length_b   6.915
_cell_length_c   12.830
_cell_angle_alpha   90.221
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1117.889
_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  0.205  0.785  0.036  1.0
  K  K1  1  0.795  0.215  0.964  1.0
  K  K2  1  0.705  0.215  0.464  1.0
  K  K3  1  0.295  0.785  0.536  1.0
  Y  Y4  1  0.537  0.773  0.237  1.0
  Y  Y5  1  0.463  0.227  0.763  1.0
  Y  Y6  1  0.037  0.227  0.263  1.0
  Y  Y7  1  0.963  0.773  0.737  1.0
  Y  Y8  1  0.840  0.724  0.248  1.0
  Y  Y9  1  0.160  0.276  0.752  1.0
  Y  Y10  1  0.340  0.276  0.252  1.0
  Y  Y11  1  0.660  0.724  0.748  1.0
  Cl  Cl12  1  0.973  0.943  0.131  1.0
  Cl  Cl13  1  0.027  0.057  0.869  1.0
  Cl  Cl14  1  0.473  0.057  0.369  1.0
  Cl  Cl15  1  0.527  0.943  0.631  1.0
  Cl  Cl16  1  0.685  0.749  0.396  1.0
  Cl  Cl17  1  0.315  0.251  0.604  1.0
  Cl  Cl18  1  0.185  0.251  0.104  1.0
  Cl  Cl19  1  0.815  0.749  0.896  1.0
  Cl  Cl20  1  0.678  0.508  0.172  1.0
  Cl  Cl21  1  0.322  0.492  0.828  1.0
  Cl  Cl22  1  0.178  0.492  0.328  1.0
  Cl  Cl23  1  0.822  0.508  0.672  1.0
  Cl  Cl24  1  0.925  0.979  0.383  1.0
  Cl  Cl25  1  0.075  0.021  0.617  1.0
  Cl  Cl26  1  0.425  0.021  0.117  1.0
  Cl  Cl27  1  0.575  0.979  0.883  1.0
  Cl  Cl28  1  0.942  0.461  0.126  1.0
  Cl  Cl29  1  0.058  0.539  0.874  1.0
  Cl  Cl30  1  0.442  0.539  0.374  1.0
  Cl  Cl31  1  0.558  0.461  0.626  1.0
  Cl  Cl32  1  0.703  0.995  0.173  1.0
  Cl  Cl33  1  0.297  0.005  0.827  1.0
  Cl  Cl34  1  0.203  0.005  0.327  1.0
  Cl  Cl35  1  0.797  0.995  0.673  1.0
  Cl  Cl36  1  0.910  0.459  0.382  1.0
  Cl  Cl37  1  0.090  0.541  0.618  1.0
  Cl  Cl38  1  0.410  0.541  0.118  1.0
  Cl  Cl39  1  0.590  0.459  0.882  1.0
[/CIF]
.
The material described by KY2Cl7 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one Cl(2), one Cl(3), one Cl(4), one Cl(5), one Cl(6), one Cl(7), and two equivalent Cl(1) atoms. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one Cl(1), one Cl(2), one Cl(3), one Cl(4), one Cl(5), one Cl(6), and one Cl(7) atom to form a mixture of distorted face and edge-sharing YCl7 pentagonal bipyramids. In the second Y site, Y(2) is bonded to one Cl(1), one Cl(2), one Cl(3), one Cl(4), one Cl(5), one Cl(6), and one Cl(7) atom to form a mixture of distorted face and edge-sharing YCl7 pentagonal bipyramids. There are seven inequivalent Cl sites. In the first Cl site, Cl(6) is bonded in a distorted T-shaped geometry to one K(1), one Y(1), and one Y(2) atom. In the second Cl site, Cl(7) is bonded in a trigonal non-coplanar geometry to one K(1), one Y(1), and one Y(2) atom. In the third Cl site, Cl(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one Y(1), and one Y(2) atom. In the fourth Cl site, Cl(2) is bonded in a 3-coordinate geometry to one K(1), one Y(1), and one Y(2) atom. In the fifth Cl site, Cl(3) is bonded in a distorted L-shaped geometry to one K(1), one Y(1), and one Y(2) atom. In the sixth Cl site, Cl(4) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Y(1), and one Y(2) atom. In the seventh Cl site, Cl(5) is bonded in a trigonal non-coplanar geometry to one K(1), one Y(1), and one Y(2) atom. is represented by the CIF file [CIF]
data_KY2Cl7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.599
_cell_length_b   6.915
_cell_length_c   12.830
_cell_angle_alpha   90.221
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1117.889
_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  0.205  0.785  0.036  1.0
  K  K1  1  0.795  0.215  0.964  1.0
  K  K2  1  0.705  0.215  0.464  1.0
  K  K3  1  0.295  0.785  0.536  1.0
  Y  Y4  1  0.537  0.773  0.237  1.0
  Y  Y5  1  0.463  0.227  0.763  1.0
  Y  Y6  1  0.037  0.227  0.263  1.0
  Y  Y7  1  0.963  0.773  0.737  1.0
  Y  Y8  1  0.840  0.724  0.248  1.0
  Y  Y9  1  0.160  0.276  0.752  1.0
  Y  Y10  1  0.340  0.276  0.252  1.0
  Y  Y11  1  0.660  0.724  0.748  1.0
  Cl  Cl12  1  0.973  0.943  0.131  1.0
  Cl  Cl13  1  0.027  0.057  0.869  1.0
  Cl  Cl14  1  0.473  0.057  0.369  1.0
  Cl  Cl15  1  0.527  0.943  0.631  1.0
  Cl  Cl16  1  0.685  0.749  0.396  1.0
  Cl  Cl17  1  0.315  0.251  0.604  1.0
  Cl  Cl18  1  0.185  0.251  0.104  1.0
  Cl  Cl19  1  0.815  0.749  0.896  1.0
  Cl  Cl20  1  0.678  0.508  0.172  1.0
  Cl  Cl21  1  0.322  0.492  0.828  1.0
  Cl  Cl22  1  0.178  0.492  0.328  1.0
  Cl  Cl23  1  0.822  0.508  0.672  1.0
  Cl  Cl24  1  0.925  0.979  0.383  1.0
  Cl  Cl25  1  0.075  0.021  0.617  1.0
  Cl  Cl26  1  0.425  0.021  0.117  1.0
  Cl  Cl27  1  0.575  0.979  0.883  1.0
  Cl  Cl28  1  0.942  0.461  0.126  1.0
  Cl  Cl29  1  0.058  0.539  0.874  1.0
  Cl  Cl30  1  0.442  0.539  0.374  1.0
  Cl  Cl31  1  0.558  0.461  0.626  1.0
  Cl  Cl32  1  0.703  0.995  0.173  1.0
  Cl  Cl33  1  0.297  0.005  0.827  1.0
  Cl  Cl34  1  0.203  0.005  0.327  1.0
  Cl  Cl35  1  0.797  0.995  0.673  1.0
  Cl  Cl36  1  0.910  0.459  0.382  1.0
  Cl  Cl37  1  0.090  0.541  0.618  1.0
  Cl  Cl38  1  0.410  0.541  0.118  1.0
  Cl  Cl39  1  0.590  0.459  0.882  1.0
[/CIF]
.