The crystal structure described by (KCr(CO3)4)2O2 crystallizes in the monoclinic P2/c space group. The structure consists of two water atoms inside a KCr(CO3)4 framework. In the KCr(CO3)4 framework, K(1) is bonded in a distorted pentagonal pyramidal geometry to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms. Cr(1) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(5) 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(3) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(2) and one O(4) atom. There are six inequivalent O sites. In the first O site, O(6) is bonded in a bent 120 degrees geometry to one K(1) and one O(5) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Cr(1) and one C(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to one Cr(1) and one C(2) atom. In the fourth O site, O(3) is bonded in a distorted bent 120 degrees geometry to one K(1) and one C(1) atom. In the fifth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one K(1) and one C(2) atom. In the sixth O site, O(5) is bonded in a bent 120 degrees geometry to one Cr(1) and one O(6) atom. is represented by the CIF file [CIF]
data_KCrC4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.302
_cell_length_b   7.770
_cell_length_c   14.583
_cell_angle_alpha   74.043
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   577.660
_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  0.695  0.000  0.750  1.0
  K  K1  1  0.305  0.000  0.250  1.0
  Cr  Cr2  1  0.500  0.500  0.500  1.0
  Cr  Cr3  1  0.500  0.500  0.000  1.0
  C  C4  1  0.709  0.664  0.629  1.0
  C  C5  1  0.709  0.336  0.871  1.0
  C  C6  1  0.291  0.336  0.371  1.0
  C  C7  1  0.291  0.664  0.129  1.0
  C  C8  1  0.467  0.778  0.588  1.0
  C  C9  1  0.467  0.222  0.912  1.0
  C  C10  1  0.533  0.222  0.412  1.0
  C  C11  1  0.533  0.778  0.088  1.0
  O  O12  1  0.746  0.528  0.596  1.0
  O  O13  1  0.746  0.472  0.904  1.0
  O  O14  1  0.254  0.472  0.404  1.0
  O  O15  1  0.254  0.528  0.096  1.0
  O  O16  1  0.353  0.718  0.523  1.0
  O  O17  1  0.353  0.282  0.977  1.0
  O  O18  1  0.647  0.282  0.477  1.0
  O  O19  1  0.647  0.718  0.023  1.0
  O  O20  1  0.841  0.710  0.688  1.0
  O  O21  1  0.841  0.290  0.812  1.0
  O  O22  1  0.159  0.290  0.312  1.0
  O  O23  1  0.159  0.710  0.188  1.0
  O  O24  1  0.406  0.906  0.617  1.0
  O  O25  1  0.406  0.094  0.883  1.0
  O  O26  1  0.594  0.094  0.383  1.0
  O  O27  1  0.594  0.906  0.117  1.0
  O  O28  1  0.267  0.336  0.620  1.0
  O  O29  1  0.267  0.664  0.880  1.0
  O  O30  1  0.733  0.664  0.380  1.0
  O  O31  1  0.733  0.336  0.120  1.0
  O  O32  1  0.116  0.219  0.608  1.0
  O  O33  1  0.116  0.781  0.892  1.0
  O  O34  1  0.884  0.781  0.392  1.0
  O  O35  1  0.884  0.219  0.108  1.0
  O  O36  1  0.146  0.500  0.750  1.0
  O  O37  1  0.854  0.500  0.250  1.0
[/CIF]
.
The crystal structure described by (KCr(CO3)4)2O2 crystallizes in the monoclinic P2/c space group. The structure consists of two water atoms inside a KCr(CO3)4 framework. In the KCr(CO3)4 framework, K(1) is bonded in a distorted pentagonal pyramidal geometry to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms. Cr(1) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(5) 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(3) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(2) and one O(4) atom. There are six inequivalent O sites. In the first O site, O(6) is bonded in a bent 120 degrees geometry to one K(1) and one O(5) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Cr(1) and one C(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to one Cr(1) and one C(2) atom. In the fourth O site, O(3) is bonded in a distorted bent 120 degrees geometry to one K(1) and one C(1) atom. In the fifth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one K(1) and one C(2) atom. In the sixth O site, O(5) is bonded in a bent 120 degrees geometry to one Cr(1) and one O(6) atom. is represented by the CIF file [CIF]
data_KCrC4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.302
_cell_length_b   7.770
_cell_length_c   14.583
_cell_angle_alpha   74.043
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   577.660
_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  0.695  0.000  0.750  1.0
  K  K1  1  0.305  0.000  0.250  1.0
  Cr  Cr2  1  0.500  0.500  0.500  1.0
  Cr  Cr3  1  0.500  0.500  0.000  1.0
  C  C4  1  0.709  0.664  0.629  1.0
  C  C5  1  0.709  0.336  0.871  1.0
  C  C6  1  0.291  0.336  0.371  1.0
  C  C7  1  0.291  0.664  0.129  1.0
  C  C8  1  0.467  0.778  0.588  1.0
  C  C9  1  0.467  0.222  0.912  1.0
  C  C10  1  0.533  0.222  0.412  1.0
  C  C11  1  0.533  0.778  0.088  1.0
  O  O12  1  0.746  0.528  0.596  1.0
  O  O13  1  0.746  0.472  0.904  1.0
  O  O14  1  0.254  0.472  0.404  1.0
  O  O15  1  0.254  0.528  0.096  1.0
  O  O16  1  0.353  0.718  0.523  1.0
  O  O17  1  0.353  0.282  0.977  1.0
  O  O18  1  0.647  0.282  0.477  1.0
  O  O19  1  0.647  0.718  0.023  1.0
  O  O20  1  0.841  0.710  0.688  1.0
  O  O21  1  0.841  0.290  0.812  1.0
  O  O22  1  0.159  0.290  0.312  1.0
  O  O23  1  0.159  0.710  0.188  1.0
  O  O24  1  0.406  0.906  0.617  1.0
  O  O25  1  0.406  0.094  0.883  1.0
  O  O26  1  0.594  0.094  0.383  1.0
  O  O27  1  0.594  0.906  0.117  1.0
  O  O28  1  0.267  0.336  0.620  1.0
  O  O29  1  0.267  0.664  0.880  1.0
  O  O30  1  0.733  0.664  0.380  1.0
  O  O31  1  0.733  0.336  0.120  1.0
  O  O32  1  0.116  0.219  0.608  1.0
  O  O33  1  0.116  0.781  0.892  1.0
  O  O34  1  0.884  0.781  0.392  1.0
  O  O35  1  0.884  0.219  0.108  1.0
  O  O36  1  0.146  0.500  0.750  1.0
  O  O37  1  0.854  0.500  0.250  1.0
[/CIF]
.