The structure described by CuHO2 crystallizes in the orthorhombic Cmc2_1 space group. Cu(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form a mixture of corner and edge-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles are 21°. H(1) is bonded in a distorted linear geometry to two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Cu(1) and two equivalent H(1) atoms to form distorted OCu2H2 tetrahedra that share corners with four equivalent O(1)Cu2H2 tetrahedra, corners with six equivalent O(2)Cu4 trigonal pyramids, and  an edgeedge with one O(2)Cu4 trigonal pyramid. In the second O site, O(2) is bonded to four equivalent Cu(1) atoms to form OCu4 trigonal pyramids that share corners with six equivalent O(1)Cu2H2 tetrahedra, corners with four equivalent O(2)Cu4 trigonal pyramids,  an edgeedge with one O(1)Cu2H2 tetrahedra, and edges with four equivalent O(2)Cu4 trigonal pyramids. is represented by the CIF file [CIF]
data_CuHO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.147
_cell_length_b   6.147
_cell_length_c   4.031
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   152.050
_symmetry_Int_Tables_number   1
_cell_volume   71.384
_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
  Cu  Cu0  1  0.822  0.178  0.458  1.0
  Cu  Cu1  1  0.178  0.822  0.958  1.0
  H  H2  1  0.482  0.518  0.263  1.0
  H  H3  1  0.518  0.482  0.763  1.0
  O  O4  1  0.569  0.431  0.968  1.0
  O  O5  1  0.431  0.569  0.468  1.0
  O  O6  1  0.210  0.790  0.460  1.0
  O  O7  1  0.790  0.210  0.960  1.0
[/CIF]
.
The structure described by CuHO2 crystallizes in the orthorhombic Cmc2_1 space group. Cu(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form a mixture of corner and edge-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles are 21°. H(1) is bonded in a distorted linear geometry to two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Cu(1) and two equivalent H(1) atoms to form distorted OCu2H2 tetrahedra that share corners with four equivalent O(1)Cu2H2 tetrahedra, corners with six equivalent O(2)Cu4 trigonal pyramids, and  an edgeedge with one O(2)Cu4 trigonal pyramid. In the second O site, O(2) is bonded to four equivalent Cu(1) atoms to form OCu4 trigonal pyramids that share corners with six equivalent O(1)Cu2H2 tetrahedra, corners with four equivalent O(2)Cu4 trigonal pyramids,  an edgeedge with one O(1)Cu2H2 tetrahedra, and edges with four equivalent O(2)Cu4 trigonal pyramids. is represented by the CIF file [CIF]
data_CuHO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.147
_cell_length_b   6.147
_cell_length_c   4.031
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   152.050
_symmetry_Int_Tables_number   1
_cell_volume   71.384
_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
  Cu  Cu0  1  0.822  0.178  0.458  1.0
  Cu  Cu1  1  0.178  0.822  0.958  1.0
  H  H2  1  0.482  0.518  0.263  1.0
  H  H3  1  0.518  0.482  0.763  1.0
  O  O4  1  0.569  0.431  0.968  1.0
  O  O5  1  0.431  0.569  0.468  1.0
  O  O6  1  0.210  0.790  0.460  1.0
  O  O7  1  0.790  0.210  0.960  1.0
[/CIF]
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