The material described by K2PdO4 crystallizes in the monoclinic P2_1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one O(3), one O(4), two equivalent O(1), and three equivalent O(2) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(2), two equivalent O(1), two equivalent O(4), and three equivalent O(3) atoms. Pd(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent K(2), and one Pd(1) atom. In the second O site, O(2) is bonded to one K(2), three equivalent K(1), and one Pd(1) atom to form distorted corner-sharing OK4Pd trigonal bipyramids. In the third O site, O(3) is bonded in a 5-coordinate geometry to one K(1), three equivalent K(2), and one Pd(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one K(1), two equivalent K(2), and one Pd(1) atom. is represented by the CIF card [CIF]
data_K2PdO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.928
_cell_length_b   5.377
_cell_length_c   7.296
_cell_angle_alpha   72.769
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   259.577
_cell_formula_units_Z   2
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  0.969  0.679  0.421  1.0
  K  K1  1  0.469  0.321  0.579  1.0
  K  K2  1  0.848  0.329  0.088  1.0
  K  K3  1  0.348  0.671  0.912  1.0
  Pd  Pd4  1  0.419  0.989  0.241  1.0
  Pd  Pd5  1  0.919  0.011  0.759  1.0
  O  O6  1  0.588  0.708  0.258  1.0
  O  O7  1  0.088  0.292  0.742  1.0
  O  O8  1  0.339  0.852  0.503  1.0
  O  O9  1  0.839  0.148  0.497  1.0
  O  O10  1  0.979  0.828  0.016  1.0
  O  O11  1  0.479  0.172  0.984  1.0
  O  O12  1  0.738  0.746  0.747  1.0
  O  O13  1  0.238  0.254  0.253  1.0
[/CIF]
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The material described by K2PdO4 crystallizes in the monoclinic P2_1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one O(3), one O(4), two equivalent O(1), and three equivalent O(2) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(2), two equivalent O(1), two equivalent O(4), and three equivalent O(3) atoms. Pd(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent K(2), and one Pd(1) atom. In the second O site, O(2) is bonded to one K(2), three equivalent K(1), and one Pd(1) atom to form distorted corner-sharing OK4Pd trigonal bipyramids. In the third O site, O(3) is bonded in a 5-coordinate geometry to one K(1), three equivalent K(2), and one Pd(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one K(1), two equivalent K(2), and one Pd(1) atom. is represented by the CIF card [CIF]
data_K2PdO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.928
_cell_length_b   5.377
_cell_length_c   7.296
_cell_angle_alpha   72.769
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   259.577
_cell_formula_units_Z   2
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  0.969  0.679  0.421  1.0
  K  K1  1  0.469  0.321  0.579  1.0
  K  K2  1  0.848  0.329  0.088  1.0
  K  K3  1  0.348  0.671  0.912  1.0
  Pd  Pd4  1  0.419  0.989  0.241  1.0
  Pd  Pd5  1  0.919  0.011  0.759  1.0
  O  O6  1  0.588  0.708  0.258  1.0
  O  O7  1  0.088  0.292  0.742  1.0
  O  O8  1  0.339  0.852  0.503  1.0
  O  O9  1  0.839  0.148  0.497  1.0
  O  O10  1  0.979  0.828  0.016  1.0
  O  O11  1  0.479  0.172  0.984  1.0
  O  O12  1  0.738  0.746  0.747  1.0
  O  O13  1  0.238  0.254  0.253  1.0
[/CIF]
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