The material described by K2Cu(CO3)2 crystallizes in the orthorhombic Fdd2 space group. K(1) is bonded in a 8-coordinate geometry to two equivalent O(1), three equivalent O(2), and three equivalent O(3) atoms. Cu(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one Cu(1), and one C(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to three equivalent K(1), one Cu(1), and one C(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to three equivalent K(1) and one C(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Cu(CO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.540
_cell_length_b   9.387
_cell_length_c   6.434
_cell_angle_alpha   81.221
_cell_angle_beta   61.671
_cell_angle_gamma   37.107
_symmetry_Int_Tables_number   1
_cell_volume   305.973
_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  0.575  0.023  0.585  1.0
  K  K1  1  0.817  0.585  0.023  1.0
  K  K2  1  0.665  0.433  0.675  1.0
  K  K3  1  0.227  0.675  0.433  1.0
  Cu  Cu4  1  0.000  1.000  1.000  1.0
  Cu  Cu5  1  0.250  0.250  0.250  1.0
  C  C6  1  0.160  0.587  0.003  1.0
  C  C7  1  0.250  0.003  0.587  1.0
  C  C8  1  0.247  1.000  0.090  1.0
  C  C9  1  0.663  0.090  1.000  1.0
  O  O10  1  0.996  0.813  0.167  1.0
  O  O11  1  0.024  0.167  0.813  1.0
  O  O12  1  0.083  0.226  0.254  1.0
  O  O13  1  0.437  0.254  0.226  1.0
  O  O14  1  0.111  0.490  0.089  1.0
  O  O15  1  0.310  0.089  0.490  1.0
  O  O16  1  0.161  0.940  0.139  1.0
  O  O17  1  0.760  0.139  0.940  1.0
  O  O18  1  0.350  0.472  0.773  1.0
  O  O19  1  0.405  0.773  0.472  1.0
  O  O20  1  0.477  0.845  0.900  1.0
  O  O21  1  0.778  0.900  0.845  1.0
[/CIF]
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The material described by K2Cu(CO3)2 crystallizes in the orthorhombic Fdd2 space group. K(1) is bonded in a 8-coordinate geometry to two equivalent O(1), three equivalent O(2), and three equivalent O(3) atoms. Cu(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one Cu(1), and one C(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to three equivalent K(1), one Cu(1), and one C(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to three equivalent K(1) and one C(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Cu(CO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.540
_cell_length_b   9.387
_cell_length_c   6.434
_cell_angle_alpha   81.221
_cell_angle_beta   61.671
_cell_angle_gamma   37.107
_symmetry_Int_Tables_number   1
_cell_volume   305.973
_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  0.575  0.023  0.585  1.0
  K  K1  1  0.817  0.585  0.023  1.0
  K  K2  1  0.665  0.433  0.675  1.0
  K  K3  1  0.227  0.675  0.433  1.0
  Cu  Cu4  1  0.000  1.000  1.000  1.0
  Cu  Cu5  1  0.250  0.250  0.250  1.0
  C  C6  1  0.160  0.587  0.003  1.0
  C  C7  1  0.250  0.003  0.587  1.0
  C  C8  1  0.247  1.000  0.090  1.0
  C  C9  1  0.663  0.090  1.000  1.0
  O  O10  1  0.996  0.813  0.167  1.0
  O  O11  1  0.024  0.167  0.813  1.0
  O  O12  1  0.083  0.226  0.254  1.0
  O  O13  1  0.437  0.254  0.226  1.0
  O  O14  1  0.111  0.490  0.089  1.0
  O  O15  1  0.310  0.089  0.490  1.0
  O  O16  1  0.161  0.940  0.139  1.0
  O  O17  1  0.760  0.139  0.940  1.0
  O  O18  1  0.350  0.472  0.773  1.0
  O  O19  1  0.405  0.773  0.472  1.0
  O  O20  1  0.477  0.845  0.900  1.0
  O  O21  1  0.778  0.900  0.845  1.0
[/CIF]
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