The material described by K2ZnCl4 crystallizes in the orthorhombic Pnma space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one Cl(3), three equivalent Cl(2), and four equivalent Cl(1) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one Cl(3), two equivalent Cl(2), and four equivalent Cl(1) atoms. Zn(1) is bonded in a tetrahedral geometry to one Cl(2), one Cl(3), and two equivalent Cl(1) atoms. There are three inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to two equivalent K(1), two equivalent K(2), and one Zn(1) atom to form a mixture of distorted corner, edge, and face-sharing ClK4Zn square pyramids. In the second Cl site, Cl(2) is bonded in a 6-coordinate geometry to two equivalent K(2), three equivalent K(1), and one Zn(1) atom. In the third Cl site, Cl(3) is bonded in a distorted T-shaped geometry to one K(1), one K(2), and one Zn(1) atom. is represented by the CIF file [CIF]
data_K2ZnCl4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.119
_cell_length_b   8.888
_cell_length_c   12.665
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   801.362
_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  0.250  0.615  0.564  1.0
  K  K1  1  0.750  0.019  0.681  1.0
  K  K2  1  0.750  0.885  0.064  1.0
  K  K3  1  0.750  0.385  0.436  1.0
  K  K4  1  0.250  0.115  0.936  1.0
  K  K5  1  0.250  0.981  0.319  1.0
  K  K6  1  0.750  0.519  0.819  1.0
  K  K7  1  0.250  0.481  0.181  1.0
  Zn  Zn8  1  0.250  0.216  0.573  1.0
  Zn  Zn9  1  0.250  0.716  0.927  1.0
  Zn  Zn10  1  0.750  0.784  0.427  1.0
  Zn  Zn11  1  0.750  0.284  0.073  1.0
  Cl  Cl12  1  0.496  0.679  0.349  1.0
  Cl  Cl13  1  0.504  0.321  0.651  1.0
  Cl  Cl14  1  0.250  0.312  0.406  1.0
  Cl  Cl15  1  0.996  0.321  0.651  1.0
  Cl  Cl16  1  0.750  0.535  0.077  1.0
  Cl  Cl17  1  0.004  0.679  0.349  1.0
  Cl  Cl18  1  0.250  0.465  0.923  1.0
  Cl  Cl19  1  0.996  0.821  0.849  1.0
  Cl  Cl20  1  0.004  0.179  0.151  1.0
  Cl  Cl21  1  0.750  0.188  0.906  1.0
  Cl  Cl22  1  0.750  0.688  0.594  1.0
  Cl  Cl23  1  0.750  0.035  0.423  1.0
  Cl  Cl24  1  0.504  0.821  0.849  1.0
  Cl  Cl25  1  0.250  0.812  0.094  1.0
  Cl  Cl26  1  0.250  0.965  0.577  1.0
  Cl  Cl27  1  0.496  0.179  0.151  1.0
[/CIF]
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The material described by K2ZnCl4 crystallizes in the orthorhombic Pnma space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one Cl(3), three equivalent Cl(2), and four equivalent Cl(1) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one Cl(3), two equivalent Cl(2), and four equivalent Cl(1) atoms. Zn(1) is bonded in a tetrahedral geometry to one Cl(2), one Cl(3), and two equivalent Cl(1) atoms. There are three inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to two equivalent K(1), two equivalent K(2), and one Zn(1) atom to form a mixture of distorted corner, edge, and face-sharing ClK4Zn square pyramids. In the second Cl site, Cl(2) is bonded in a 6-coordinate geometry to two equivalent K(2), three equivalent K(1), and one Zn(1) atom. In the third Cl site, Cl(3) is bonded in a distorted T-shaped geometry to one K(1), one K(2), and one Zn(1) atom. is represented by the CIF file [CIF]
data_K2ZnCl4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.119
_cell_length_b   8.888
_cell_length_c   12.665
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   801.362
_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  0.250  0.615  0.564  1.0
  K  K1  1  0.750  0.019  0.681  1.0
  K  K2  1  0.750  0.885  0.064  1.0
  K  K3  1  0.750  0.385  0.436  1.0
  K  K4  1  0.250  0.115  0.936  1.0
  K  K5  1  0.250  0.981  0.319  1.0
  K  K6  1  0.750  0.519  0.819  1.0
  K  K7  1  0.250  0.481  0.181  1.0
  Zn  Zn8  1  0.250  0.216  0.573  1.0
  Zn  Zn9  1  0.250  0.716  0.927  1.0
  Zn  Zn10  1  0.750  0.784  0.427  1.0
  Zn  Zn11  1  0.750  0.284  0.073  1.0
  Cl  Cl12  1  0.496  0.679  0.349  1.0
  Cl  Cl13  1  0.504  0.321  0.651  1.0
  Cl  Cl14  1  0.250  0.312  0.406  1.0
  Cl  Cl15  1  0.996  0.321  0.651  1.0
  Cl  Cl16  1  0.750  0.535  0.077  1.0
  Cl  Cl17  1  0.004  0.679  0.349  1.0
  Cl  Cl18  1  0.250  0.465  0.923  1.0
  Cl  Cl19  1  0.996  0.821  0.849  1.0
  Cl  Cl20  1  0.004  0.179  0.151  1.0
  Cl  Cl21  1  0.750  0.188  0.906  1.0
  Cl  Cl22  1  0.750  0.688  0.594  1.0
  Cl  Cl23  1  0.750  0.035  0.423  1.0
  Cl  Cl24  1  0.504  0.821  0.849  1.0
  Cl  Cl25  1  0.250  0.812  0.094  1.0
  Cl  Cl26  1  0.250  0.965  0.577  1.0
  Cl  Cl27  1  0.496  0.179  0.151  1.0
[/CIF]
.