The crystal structure described by KHC2O4 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 7-coordinate geometry to one O(2), one O(4), two equivalent O(3), and three equivalent O(1) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. H(1) is bonded in a linear geometry to one O(2) and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent K(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one K(1), one C(1), and one H(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1) and one C(2) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one K(1), one C(2), and one H(1) atom. is represented by the CIF file [CIF]
data_KH(CO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.490
_cell_length_b   12.924
_cell_length_c   7.990
_cell_angle_alpha   90.000
_cell_angle_beta   105.458
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   446.874
_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  0.314  0.933  0.227  1.0
  K  K1  1  0.686  0.433  0.273  1.0
  K  K2  1  0.686  0.067  0.773  1.0
  K  K3  1  0.314  0.567  0.727  1.0
  H  H4  1  0.640  0.775  0.982  1.0
  H  H5  1  0.360  0.275  0.518  1.0
  H  H6  1  0.360  0.225  0.018  1.0
  H  H7  1  0.640  0.725  0.482  1.0
  C  C8  1  0.186  0.652  0.289  1.0
  C  C9  1  0.814  0.152  0.211  1.0
  C  C10  1  0.814  0.348  0.711  1.0
  C  C11  1  0.186  0.848  0.789  1.0
  C  C12  1  0.903  0.672  0.129  1.0
  C  C13  1  0.097  0.172  0.371  1.0
  C  C14  1  0.097  0.328  0.871  1.0
  C  C15  1  0.903  0.828  0.629  1.0
  O  O16  1  0.209  0.564  0.355  1.0
  O  O17  1  0.791  0.064  0.145  1.0
  O  O18  1  0.791  0.436  0.645  1.0
  O  O19  1  0.209  0.936  0.855  1.0
  O  O20  1  0.368  0.729  0.336  1.0
  O  O21  1  0.632  0.229  0.164  1.0
  O  O22  1  0.632  0.271  0.664  1.0
  O  O23  1  0.368  0.771  0.836  1.0
  O  O24  1  0.749  0.599  0.052  1.0
  O  O25  1  0.251  0.099  0.448  1.0
  O  O26  1  0.251  0.401  0.948  1.0
  O  O27  1  0.749  0.901  0.552  1.0
  O  O28  1  0.845  0.771  0.088  1.0
  O  O29  1  0.155  0.271  0.412  1.0
  O  O30  1  0.155  0.229  0.912  1.0
  O  O31  1  0.845  0.729  0.588  1.0
[/CIF]
.
The crystal structure described by KHC2O4 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 7-coordinate geometry to one O(2), one O(4), two equivalent O(3), and three equivalent O(1) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. H(1) is bonded in a linear geometry to one O(2) and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent K(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one K(1), one C(1), and one H(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1) and one C(2) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one K(1), one C(2), and one H(1) atom. is represented by the CIF file [CIF]
data_KH(CO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.490
_cell_length_b   12.924
_cell_length_c   7.990
_cell_angle_alpha   90.000
_cell_angle_beta   105.458
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   446.874
_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  0.314  0.933  0.227  1.0
  K  K1  1  0.686  0.433  0.273  1.0
  K  K2  1  0.686  0.067  0.773  1.0
  K  K3  1  0.314  0.567  0.727  1.0
  H  H4  1  0.640  0.775  0.982  1.0
  H  H5  1  0.360  0.275  0.518  1.0
  H  H6  1  0.360  0.225  0.018  1.0
  H  H7  1  0.640  0.725  0.482  1.0
  C  C8  1  0.186  0.652  0.289  1.0
  C  C9  1  0.814  0.152  0.211  1.0
  C  C10  1  0.814  0.348  0.711  1.0
  C  C11  1  0.186  0.848  0.789  1.0
  C  C12  1  0.903  0.672  0.129  1.0
  C  C13  1  0.097  0.172  0.371  1.0
  C  C14  1  0.097  0.328  0.871  1.0
  C  C15  1  0.903  0.828  0.629  1.0
  O  O16  1  0.209  0.564  0.355  1.0
  O  O17  1  0.791  0.064  0.145  1.0
  O  O18  1  0.791  0.436  0.645  1.0
  O  O19  1  0.209  0.936  0.855  1.0
  O  O20  1  0.368  0.729  0.336  1.0
  O  O21  1  0.632  0.229  0.164  1.0
  O  O22  1  0.632  0.271  0.664  1.0
  O  O23  1  0.368  0.771  0.836  1.0
  O  O24  1  0.749  0.599  0.052  1.0
  O  O25  1  0.251  0.099  0.448  1.0
  O  O26  1  0.251  0.401  0.948  1.0
  O  O27  1  0.749  0.901  0.552  1.0
  O  O28  1  0.845  0.771  0.088  1.0
  O  O29  1  0.155  0.271  0.412  1.0
  O  O30  1  0.155  0.229  0.912  1.0
  O  O31  1  0.845  0.729  0.588  1.0
[/CIF]
.