The compound described by Li9Cu2(HO2)4 crystallizes in the orthorhombic Pmn2_1 space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(5), and two equivalent O(1) atoms. In the second Li site, Li(2) is bonded to one O(2), one O(5), two equivalent O(1), and two equivalent O(4) atoms to form a mixture of distorted corner and edge-sharing LiO6 octahedra. In the third Li site, Li(3) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the fourth Li site, Li(4) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(6), and two equivalent O(4) atoms. In the fifth Li site, Li(5) is bonded in a 6-coordinate geometry to one O(2), one O(5), two equivalent O(1), and two equivalent O(4) atoms. In the sixth Li site, Li(6) is bonded in a 4-coordinate geometry to one O(3), one O(6), and two equivalent O(4) atoms. In the seventh Li site, Li(7) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(2)O6 octahedra, corners with two equivalent Li(7)O4 tetrahedra, and  an edgeedge with one Li(2)O6 octahedra. The corner-sharing octahedral tilt angles are 30°. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted linear geometry to one O(3) and one O(5) atom. In the second Cu site, Cu(2) is bonded in a linear geometry to one O(2) and one O(6) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(4) atom. There are six inequivalent O sites. In the first O site, O(2) is bonded in a 6-coordinate geometry to one Li(2), one Li(4), one Li(5), two equivalent Li(3), and one Cu(2) atom. In the second O site, O(3) is bonded to one Li(1), one Li(6), two equivalent Li(3), and one Cu(1) atom to form corner-sharing OLi4Cu trigonal bipyramids. In the third O site, O(4) is bonded in a distorted single-bond geometry to one Li(2), one Li(3), one Li(4), one Li(5), one Li(6), one Li(7), and one H(2) atom. In the fourth O site, O(5) is bonded in a 6-coordinate geometry to one Li(1), one Li(2), one Li(5), two equivalent Li(7), and one Cu(1) atom. In the fifth O site, O(6) is bonded to one Li(4), one Li(6), two equivalent Li(7), and one Cu(2) atom to form corner-sharing OLi4Cu trigonal bipyramids. In the sixth O site, O(1) is bonded in a distorted single-bond geometry to one Li(1), one Li(2), one Li(3), one Li(5), one Li(7), and one H(1) atom. is represented by the CIF file [CIF]
data_Li9Cu2(HO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.482
_cell_length_b   7.517
_cell_length_c   10.837
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   446.570
_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
  Li  Li0  1  0.805  0.500  0.950  1.0
  Li  Li1  1  0.812  0.000  0.276  1.0
  Li  Li2  1  0.973  0.750  0.161  1.0
  Li  Li3  1  0.973  0.250  0.161  1.0
  Li  Li4  1  0.027  0.250  0.661  1.0
  Li  Li5  1  0.027  0.750  0.661  1.0
  Li  Li6  1  0.188  0.500  0.776  1.0
  Li  Li7  1  0.195  0.000  0.450  1.0
  Li  Li8  1  0.302  0.500  0.544  1.0
  Li  Li9  1  0.299  0.000  0.228  1.0
  Li  Li10  1  0.320  0.000  0.719  1.0
  Li  Li11  1  0.448  0.746  0.340  1.0
  Li  Li12  1  0.448  0.254  0.340  1.0
  Li  Li13  1  0.552  0.246  0.840  1.0
  Li  Li14  1  0.552  0.754  0.840  1.0
  Li  Li15  1  0.680  0.500  0.219  1.0
  Li  Li16  1  0.701  0.500  0.728  1.0
  Li  Li17  1  0.698  0.000  0.044  1.0
  Cu  Cu18  1  0.755  0.000  0.524  1.0
  Cu  Cu19  1  0.245  0.500  0.024  1.0
  Cu  Cu20  1  0.240  0.000  0.981  1.0
  Cu  Cu21  1  0.760  0.500  0.481  1.0
  H  H22  1  0.985  0.777  0.883  1.0
  H  H23  1  0.985  0.223  0.883  1.0
  H  H24  1  0.015  0.277  0.383  1.0
  H  H25  1  0.015  0.723  0.383  1.0
  H  H26  1  0.500  0.762  0.609  1.0
  H  H27  1  0.500  0.238  0.609  1.0
  H  H28  1  0.500  0.262  0.109  1.0
  H  H29  1  0.500  0.738  0.109  1.0
  O  O30  1  0.909  0.313  0.829  1.0
  O  O31  1  0.909  0.687  0.829  1.0
  O  O32  1  0.975  0.500  0.602  1.0
  O  O33  1  0.973  0.500  0.114  1.0
  O  O34  1  0.027  0.000  0.614  1.0
  O  O35  1  0.025  0.000  0.102  1.0
  O  O36  1  0.091  0.187  0.329  1.0
  O  O37  1  0.091  0.813  0.329  1.0
  O  O38  1  0.401  0.708  0.675  1.0
  O  O39  1  0.401  0.292  0.675  1.0
  O  O40  1  0.468  0.500  0.905  1.0
  O  O41  1  0.505  0.500  0.379  1.0
  O  O42  1  0.495  0.000  0.879  1.0
  O  O43  1  0.532  0.000  0.405  1.0
  O  O44  1  0.599  0.792  0.175  1.0
  O  O45  1  0.599  0.208  0.175  1.0
[/CIF]
.
The compound described by Li9Cu2(HO2)4 crystallizes in the orthorhombic Pmn2_1 space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(5), and two equivalent O(1) atoms. In the second Li site, Li(2) is bonded to one O(2), one O(5), two equivalent O(1), and two equivalent O(4) atoms to form a mixture of distorted corner and edge-sharing LiO6 octahedra. In the third Li site, Li(3) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the fourth Li site, Li(4) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(6), and two equivalent O(4) atoms. In the fifth Li site, Li(5) is bonded in a 6-coordinate geometry to one O(2), one O(5), two equivalent O(1), and two equivalent O(4) atoms. In the sixth Li site, Li(6) is bonded in a 4-coordinate geometry to one O(3), one O(6), and two equivalent O(4) atoms. In the seventh Li site, Li(7) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(2)O6 octahedra, corners with two equivalent Li(7)O4 tetrahedra, and  an edgeedge with one Li(2)O6 octahedra. The corner-sharing octahedral tilt angles are 30°. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted linear geometry to one O(3) and one O(5) atom. In the second Cu site, Cu(2) is bonded in a linear geometry to one O(2) and one O(6) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(4) atom. There are six inequivalent O sites. In the first O site, O(2) is bonded in a 6-coordinate geometry to one Li(2), one Li(4), one Li(5), two equivalent Li(3), and one Cu(2) atom. In the second O site, O(3) is bonded to one Li(1), one Li(6), two equivalent Li(3), and one Cu(1) atom to form corner-sharing OLi4Cu trigonal bipyramids. In the third O site, O(4) is bonded in a distorted single-bond geometry to one Li(2), one Li(3), one Li(4), one Li(5), one Li(6), one Li(7), and one H(2) atom. In the fourth O site, O(5) is bonded in a 6-coordinate geometry to one Li(1), one Li(2), one Li(5), two equivalent Li(7), and one Cu(1) atom. In the fifth O site, O(6) is bonded to one Li(4), one Li(6), two equivalent Li(7), and one Cu(2) atom to form corner-sharing OLi4Cu trigonal bipyramids. In the sixth O site, O(1) is bonded in a distorted single-bond geometry to one Li(1), one Li(2), one Li(3), one Li(5), one Li(7), and one H(1) atom. is represented by the CIF file [CIF]
data_Li9Cu2(HO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.482
_cell_length_b   7.517
_cell_length_c   10.837
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   446.570
_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
  Li  Li0  1  0.805  0.500  0.950  1.0
  Li  Li1  1  0.812  0.000  0.276  1.0
  Li  Li2  1  0.973  0.750  0.161  1.0
  Li  Li3  1  0.973  0.250  0.161  1.0
  Li  Li4  1  0.027  0.250  0.661  1.0
  Li  Li5  1  0.027  0.750  0.661  1.0
  Li  Li6  1  0.188  0.500  0.776  1.0
  Li  Li7  1  0.195  0.000  0.450  1.0
  Li  Li8  1  0.302  0.500  0.544  1.0
  Li  Li9  1  0.299  0.000  0.228  1.0
  Li  Li10  1  0.320  0.000  0.719  1.0
  Li  Li11  1  0.448  0.746  0.340  1.0
  Li  Li12  1  0.448  0.254  0.340  1.0
  Li  Li13  1  0.552  0.246  0.840  1.0
  Li  Li14  1  0.552  0.754  0.840  1.0
  Li  Li15  1  0.680  0.500  0.219  1.0
  Li  Li16  1  0.701  0.500  0.728  1.0
  Li  Li17  1  0.698  0.000  0.044  1.0
  Cu  Cu18  1  0.755  0.000  0.524  1.0
  Cu  Cu19  1  0.245  0.500  0.024  1.0
  Cu  Cu20  1  0.240  0.000  0.981  1.0
  Cu  Cu21  1  0.760  0.500  0.481  1.0
  H  H22  1  0.985  0.777  0.883  1.0
  H  H23  1  0.985  0.223  0.883  1.0
  H  H24  1  0.015  0.277  0.383  1.0
  H  H25  1  0.015  0.723  0.383  1.0
  H  H26  1  0.500  0.762  0.609  1.0
  H  H27  1  0.500  0.238  0.609  1.0
  H  H28  1  0.500  0.262  0.109  1.0
  H  H29  1  0.500  0.738  0.109  1.0
  O  O30  1  0.909  0.313  0.829  1.0
  O  O31  1  0.909  0.687  0.829  1.0
  O  O32  1  0.975  0.500  0.602  1.0
  O  O33  1  0.973  0.500  0.114  1.0
  O  O34  1  0.027  0.000  0.614  1.0
  O  O35  1  0.025  0.000  0.102  1.0
  O  O36  1  0.091  0.187  0.329  1.0
  O  O37  1  0.091  0.813  0.329  1.0
  O  O38  1  0.401  0.708  0.675  1.0
  O  O39  1  0.401  0.292  0.675  1.0
  O  O40  1  0.468  0.500  0.905  1.0
  O  O41  1  0.505  0.500  0.379  1.0
  O  O42  1  0.495  0.000  0.879  1.0
  O  O43  1  0.532  0.000  0.405  1.0
  O  O44  1  0.599  0.792  0.175  1.0
  O  O45  1  0.599  0.208  0.175  1.0
[/CIF]
.