The material structure described by CoOOH crystallizes in the triclinic P1 space group. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), one O(3), one O(6), one O(7), and one O(8) atom to form edge-sharing CoO6 octahedra. In the second Co site, Co(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form edge-sharing CoO6 octahedra. In the third Co site, Co(3) is bonded to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(8) atom to form edge-sharing CoO6 octahedra. In the fourth Co site, Co(4) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form edge-sharing CoO6 octahedra. There are four inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(1) and one O(5) atom. In the second H site, H(2) is bonded in a linear geometry to one O(2) and one O(6) atom. In the third H site, H(3) is bonded in a linear geometry to one O(3) and one O(7) atom. In the fourth H site, H(4) is bonded in a linear geometry to one O(4) and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Co(1), one Co(3), one Co(4), and one H(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Co(3), and one H(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Co(4), and one H(3) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Co(2), one Co(3), one Co(4), and one H(4) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Co(2), one Co(3), one Co(4), and one H(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Co(4), and one H(2) atom. In the seventh O site, O(7) is bonded in a distorted tetrahedral geometry to one Co(1), one Co(3), one Co(4), and one H(3) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Co(3), and one H(4) atom. is represented by the CIF file [CIF]
data_CoHO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.946
_cell_length_b   6.162
_cell_length_c   5.102
_cell_angle_alpha   94.845
_cell_angle_beta   95.049
_cell_angle_gamma   113.462
_symmetry_Int_Tables_number   1
_cell_volume   140.867
_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
  Co  Co0  1  1.000  0.750  0.500  1.0
  Co  Co1  1  0.004  0.493  0.996  1.0
  Co  Co2  1  0.000  0.251  0.500  1.0
  Co  Co3  1  0.996  0.007  0.004  1.0
  H  H4  1  0.461  0.111  0.747  1.0
  H  H5  1  0.541  0.640  0.754  1.0
  H  H6  1  0.458  0.860  0.246  1.0
  H  H7  1  0.540  0.388  0.254  1.0
  O  O8  1  0.227  0.052  0.709  1.0
  O  O9  1  0.217  0.555  0.700  1.0
  O  O10  1  0.226  0.802  0.206  1.0
  O  O11  1  0.219  0.308  0.203  1.0
  O  O12  1  0.781  0.194  0.795  1.0
  O  O13  1  0.774  0.698  0.795  1.0
  O  O14  1  0.784  0.944  0.299  1.0
  O  O15  1  0.773  0.447  0.292  1.0
[/CIF]
.
The material structure described by CoOOH crystallizes in the triclinic P1 space group. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), one O(3), one O(6), one O(7), and one O(8) atom to form edge-sharing CoO6 octahedra. In the second Co site, Co(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form edge-sharing CoO6 octahedra. In the third Co site, Co(3) is bonded to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(8) atom to form edge-sharing CoO6 octahedra. In the fourth Co site, Co(4) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form edge-sharing CoO6 octahedra. There are four inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(1) and one O(5) atom. In the second H site, H(2) is bonded in a linear geometry to one O(2) and one O(6) atom. In the third H site, H(3) is bonded in a linear geometry to one O(3) and one O(7) atom. In the fourth H site, H(4) is bonded in a linear geometry to one O(4) and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Co(1), one Co(3), one Co(4), and one H(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Co(3), and one H(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Co(4), and one H(3) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Co(2), one Co(3), one Co(4), and one H(4) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Co(2), one Co(3), one Co(4), and one H(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Co(4), and one H(2) atom. In the seventh O site, O(7) is bonded in a distorted tetrahedral geometry to one Co(1), one Co(3), one Co(4), and one H(3) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Co(3), and one H(4) atom. is represented by the CIF file [CIF]
data_CoHO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.946
_cell_length_b   6.162
_cell_length_c   5.102
_cell_angle_alpha   94.845
_cell_angle_beta   95.049
_cell_angle_gamma   113.462
_symmetry_Int_Tables_number   1
_cell_volume   140.867
_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
  Co  Co0  1  1.000  0.750  0.500  1.0
  Co  Co1  1  0.004  0.493  0.996  1.0
  Co  Co2  1  0.000  0.251  0.500  1.0
  Co  Co3  1  0.996  0.007  0.004  1.0
  H  H4  1  0.461  0.111  0.747  1.0
  H  H5  1  0.541  0.640  0.754  1.0
  H  H6  1  0.458  0.860  0.246  1.0
  H  H7  1  0.540  0.388  0.254  1.0
  O  O8  1  0.227  0.052  0.709  1.0
  O  O9  1  0.217  0.555  0.700  1.0
  O  O10  1  0.226  0.802  0.206  1.0
  O  O11  1  0.219  0.308  0.203  1.0
  O  O12  1  0.781  0.194  0.795  1.0
  O  O13  1  0.774  0.698  0.795  1.0
  O  O14  1  0.784  0.944  0.299  1.0
  O  O15  1  0.773  0.447  0.292  1.0
[/CIF]
.