The structure described by K2PdO4 crystallizes in the triclinic P1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), one O(6), one O(7), one O(8), and two equivalent O(4) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(1), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(3) atoms. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(5), one O(6), one O(7), one O(8), and two equivalent O(1) atoms. In the fourth K site, K(4) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(5), one O(6), one O(8), and two equivalent O(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(3), one O(5), and one O(7) atom. In the second Pd site, Pd(2) is bonded in a rectangular see-saw-like geometry to one O(2), one O(4), one O(6), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one K(2), one K(4), two equivalent K(3), and one Pd(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one K(1), one K(3), two equivalent K(4), and one Pd(2) atom. In the third O site, O(3) is bonded to one K(1), one K(3), two equivalent K(2), and one Pd(1) atom to form distorted corner-sharing OK4Pd trigonal bipyramids. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one K(2), one K(4), two equivalent K(1), and one Pd(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one K(2), one K(3), one K(4), and one Pd(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one K(1), one K(2), one K(3), one K(4), and one Pd(2) atom. In the seventh O site, O(7) is bonded in a 1-coordinate geometry to one K(1), one K(2), one K(3), and one Pd(1) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one K(1), one K(2), one K(3), one K(4), and one Pd(2) atom. is represented by the CIF card [CIF]
data_K2PdO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.336
_cell_length_b   6.925
_cell_length_c   7.332
_cell_angle_alpha   87.699
_cell_angle_beta   73.295
_cell_angle_gamma   87.241
_symmetry_Int_Tables_number   1
_cell_volume   259.103
_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  0.816  0.130  0.582  1.0
  K  K1  1  0.167  0.631  0.417  1.0
  K  K2  1  0.834  0.503  0.088  1.0
  K  K3  1  0.178  0.009  0.915  1.0
  Pd  Pd4  1  0.510  0.579  0.757  1.0
  Pd  Pd5  1  0.495  0.070  0.248  1.0
  O  O6  1  0.333  0.631  0.014  1.0
  O  O7  1  0.661  0.141  0.991  1.0
  O  O8  1  0.644  0.502  0.496  1.0
  O  O9  1  0.342  0.997  0.507  1.0
  O  O10  1  0.251  0.396  0.750  1.0
  O  O11  1  0.782  0.892  0.244  1.0
  O  O12  1  0.781  0.748  0.736  1.0
  O  O13  1  0.206  0.244  0.255  1.0
[/CIF]
.
The structure described by K2PdO4 crystallizes in the triclinic P1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), one O(6), one O(7), one O(8), and two equivalent O(4) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(1), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(3) atoms. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(5), one O(6), one O(7), one O(8), and two equivalent O(1) atoms. In the fourth K site, K(4) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(5), one O(6), one O(8), and two equivalent O(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(3), one O(5), and one O(7) atom. In the second Pd site, Pd(2) is bonded in a rectangular see-saw-like geometry to one O(2), one O(4), one O(6), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one K(2), one K(4), two equivalent K(3), and one Pd(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one K(1), one K(3), two equivalent K(4), and one Pd(2) atom. In the third O site, O(3) is bonded to one K(1), one K(3), two equivalent K(2), and one Pd(1) atom to form distorted corner-sharing OK4Pd trigonal bipyramids. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one K(2), one K(4), two equivalent K(1), and one Pd(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one K(2), one K(3), one K(4), and one Pd(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one K(1), one K(2), one K(3), one K(4), and one Pd(2) atom. In the seventh O site, O(7) is bonded in a 1-coordinate geometry to one K(1), one K(2), one K(3), and one Pd(1) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one K(1), one K(2), one K(3), one K(4), and one Pd(2) atom. is represented by the CIF card [CIF]
data_K2PdO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.336
_cell_length_b   6.925
_cell_length_c   7.332
_cell_angle_alpha   87.699
_cell_angle_beta   73.295
_cell_angle_gamma   87.241
_symmetry_Int_Tables_number   1
_cell_volume   259.103
_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  0.816  0.130  0.582  1.0
  K  K1  1  0.167  0.631  0.417  1.0
  K  K2  1  0.834  0.503  0.088  1.0
  K  K3  1  0.178  0.009  0.915  1.0
  Pd  Pd4  1  0.510  0.579  0.757  1.0
  Pd  Pd5  1  0.495  0.070  0.248  1.0
  O  O6  1  0.333  0.631  0.014  1.0
  O  O7  1  0.661  0.141  0.991  1.0
  O  O8  1  0.644  0.502  0.496  1.0
  O  O9  1  0.342  0.997  0.507  1.0
  O  O10  1  0.251  0.396  0.750  1.0
  O  O11  1  0.782  0.892  0.244  1.0
  O  O12  1  0.781  0.748  0.736  1.0
  O  O13  1  0.206  0.244  0.255  1.0
[/CIF]
.