The compound described by HoOOH crystallizes in the monoclinic P2_1 space group. Ho(1) is bonded in a 7-coordinate geometry to three equivalent O(2) and four equivalent O(1) atoms. H(1) is bonded in a single-bond geometry to one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Ho(1) atoms to form a mixture of corner and edge-sharing OHo4 tetrahedra. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Ho(1) and one H(1) atom. is represented by the CIF card [CIF]
data_HoHO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.920
_cell_length_b   3.605
_cell_length_c   4.273
_cell_angle_alpha   90.003
_cell_angle_beta   109.155
_cell_angle_gamma   89.998
_symmetry_Int_Tables_number   1
_cell_volume   86.131
_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
  Ho  Ho0  1  0.188  0.750  0.333  1.0
  Ho  Ho1  1  0.810  0.250  0.667  1.0
  H  H2  1  0.578  0.753  0.985  1.0
  H  H3  1  0.420  0.253  0.015  1.0
  O  O4  1  0.049  0.750  0.766  1.0
  O  O5  1  0.949  0.250  0.234  1.0
  O  O6  1  0.560  0.750  0.752  1.0
  O  O7  1  0.437  0.250  0.248  1.0
[/CIF]
.
The compound described by HoOOH crystallizes in the monoclinic P2_1 space group. Ho(1) is bonded in a 7-coordinate geometry to three equivalent O(2) and four equivalent O(1) atoms. H(1) is bonded in a single-bond geometry to one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Ho(1) atoms to form a mixture of corner and edge-sharing OHo4 tetrahedra. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Ho(1) and one H(1) atom. is represented by the CIF card [CIF]
data_HoHO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.920
_cell_length_b   3.605
_cell_length_c   4.273
_cell_angle_alpha   90.003
_cell_angle_beta   109.155
_cell_angle_gamma   89.998
_symmetry_Int_Tables_number   1
_cell_volume   86.131
_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
  Ho  Ho0  1  0.188  0.750  0.333  1.0
  Ho  Ho1  1  0.810  0.250  0.667  1.0
  H  H2  1  0.578  0.753  0.985  1.0
  H  H3  1  0.420  0.253  0.015  1.0
  O  O4  1  0.049  0.750  0.766  1.0
  O  O5  1  0.949  0.250  0.234  1.0
  O  O6  1  0.560  0.750  0.752  1.0
  O  O7  1  0.437  0.250  0.248  1.0
[/CIF]
.