The compound described by K4CO4 crystallizes in the triclinic P1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a distorted trigonal non-coplanar geometry to one O(3) and two equivalent O(1) atoms. In the second K site, K(2) is bonded in a rectangular see-saw-like geometry to one O(3), one O(4), and two equivalent O(1) atoms. In the third K site, K(3) is bonded in a 4-coordinate geometry to one C(1), one O(1), and two equivalent O(4) atoms. In the fourth K site, K(4) is bonded in a distorted rectangular see-saw-like geometry to one O(1), two equivalent O(3), and two equivalent O(4) atoms. C(1) is bonded in a distorted single-bond geometry to one K(3) and one O(2) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one K(3), one K(4), two equivalent K(1), and two equivalent K(2) atoms. In the second O site, O(2) is bonded in a single-bond geometry to one C(1) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one K(1), one K(2), and two equivalent K(4) atoms. In the fourth O site, O(4) is bonded to one K(2), two equivalent K(3), and two equivalent K(4) atoms to form distorted edge-sharing OK5 trigonal bipyramids. is represented by the CIF file [CIF]
data_K4CO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.317
_cell_length_b   4.023
_cell_length_c   7.378
_cell_angle_alpha   87.961
_cell_angle_beta   136.094
_cell_angle_gamma   86.811
_symmetry_Int_Tables_number   1
_cell_volume   231.176
_cell_formula_units_Z   1
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  0.163  0.601  0.440  1.0
  K  K1  1  0.398  0.536  0.111  1.0
  K  K2  1  0.907  0.888  0.473  1.0
  K  K3  1  0.541  0.981  0.815  1.0
  C  C4  1  0.976  0.394  0.854  1.0
  O  O5  1  0.205  0.092  0.719  1.0
  O  O6  1  0.951  0.174  0.923  1.0
  O  O7  1  0.406  0.511  0.479  1.0
  O  O8  1  0.699  0.445  0.185  1.0
[/CIF]
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The compound described by K4CO4 crystallizes in the triclinic P1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a distorted trigonal non-coplanar geometry to one O(3) and two equivalent O(1) atoms. In the second K site, K(2) is bonded in a rectangular see-saw-like geometry to one O(3), one O(4), and two equivalent O(1) atoms. In the third K site, K(3) is bonded in a 4-coordinate geometry to one C(1), one O(1), and two equivalent O(4) atoms. In the fourth K site, K(4) is bonded in a distorted rectangular see-saw-like geometry to one O(1), two equivalent O(3), and two equivalent O(4) atoms. C(1) is bonded in a distorted single-bond geometry to one K(3) and one O(2) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one K(3), one K(4), two equivalent K(1), and two equivalent K(2) atoms. In the second O site, O(2) is bonded in a single-bond geometry to one C(1) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one K(1), one K(2), and two equivalent K(4) atoms. In the fourth O site, O(4) is bonded to one K(2), two equivalent K(3), and two equivalent K(4) atoms to form distorted edge-sharing OK5 trigonal bipyramids. is represented by the CIF file [CIF]
data_K4CO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.317
_cell_length_b   4.023
_cell_length_c   7.378
_cell_angle_alpha   87.961
_cell_angle_beta   136.094
_cell_angle_gamma   86.811
_symmetry_Int_Tables_number   1
_cell_volume   231.176
_cell_formula_units_Z   1
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  0.163  0.601  0.440  1.0
  K  K1  1  0.398  0.536  0.111  1.0
  K  K2  1  0.907  0.888  0.473  1.0
  K  K3  1  0.541  0.981  0.815  1.0
  C  C4  1  0.976  0.394  0.854  1.0
  O  O5  1  0.205  0.092  0.719  1.0
  O  O6  1  0.951  0.174  0.923  1.0
  O  O7  1  0.406  0.511  0.479  1.0
  O  O8  1  0.699  0.445  0.185  1.0
[/CIF]
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