The crystal structure described by ZnCo2O4 is Spinel-like structured and crystallizes in the orthorhombic Imma space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CoO4 tetrahedra that share corners with six equivalent Co(2)O6 octahedra and corners with six equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-59°. In the second Co site, Co(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form CoO6 octahedra that share corners with six equivalent Co(1)O4 tetrahedra, edges with two equivalent Co(2)O6 octahedra, and edges with four equivalent Zn(1)O6 octahedra. Zn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form ZnO6 octahedra that share corners with six equivalent Co(1)O4 tetrahedra, edges with two equivalent Zn(1)O6 octahedra, and edges with four equivalent Co(2)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Co(1), one Co(2), and two equivalent Zn(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Co(1), two equivalent Co(2), and one Zn(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn(CoO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.982
_cell_length_b   5.982
_cell_length_c   5.982
_cell_angle_alpha   120.970
_cell_angle_beta   120.588
_cell_angle_gamma   88.656
_symmetry_Int_Tables_number   1
_cell_volume   149.560
_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
  Zn  Zn0  1  0.500  0.500  0.000  1.0
  Zn  Zn1  1  0.000  0.500  0.500  1.0
  Co  Co2  1  0.631  0.881  0.750  1.0
  Co  Co3  1  0.369  0.119  0.250  1.0
  Co  Co4  1  0.000  0.000  0.500  1.0
  Co  Co5  1  0.000  0.500  0.000  1.0
  O  O6  1  0.233  0.237  0.504  1.0
  O  O7  1  0.239  0.250  0.989  1.0
  O  O8  1  0.233  0.730  0.996  1.0
  O  O9  1  0.762  0.250  0.511  1.0
  O  O10  1  0.238  0.750  0.489  1.0
  O  O11  1  0.761  0.750  0.011  1.0
  O  O12  1  0.767  0.270  0.004  1.0
  O  O13  1  0.767  0.763  0.496  1.0
[/CIF]
.
The crystal structure described by ZnCo2O4 is Spinel-like structured and crystallizes in the orthorhombic Imma space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CoO4 tetrahedra that share corners with six equivalent Co(2)O6 octahedra and corners with six equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-59°. In the second Co site, Co(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form CoO6 octahedra that share corners with six equivalent Co(1)O4 tetrahedra, edges with two equivalent Co(2)O6 octahedra, and edges with four equivalent Zn(1)O6 octahedra. Zn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form ZnO6 octahedra that share corners with six equivalent Co(1)O4 tetrahedra, edges with two equivalent Zn(1)O6 octahedra, and edges with four equivalent Co(2)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Co(1), one Co(2), and two equivalent Zn(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Co(1), two equivalent Co(2), and one Zn(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn(CoO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.982
_cell_length_b   5.982
_cell_length_c   5.982
_cell_angle_alpha   120.970
_cell_angle_beta   120.588
_cell_angle_gamma   88.656
_symmetry_Int_Tables_number   1
_cell_volume   149.560
_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
  Zn  Zn0  1  0.500  0.500  0.000  1.0
  Zn  Zn1  1  0.000  0.500  0.500  1.0
  Co  Co2  1  0.631  0.881  0.750  1.0
  Co  Co3  1  0.369  0.119  0.250  1.0
  Co  Co4  1  0.000  0.000  0.500  1.0
  Co  Co5  1  0.000  0.500  0.000  1.0
  O  O6  1  0.233  0.237  0.504  1.0
  O  O7  1  0.239  0.250  0.989  1.0
  O  O8  1  0.233  0.730  0.996  1.0
  O  O9  1  0.762  0.250  0.511  1.0
  O  O10  1  0.238  0.750  0.489  1.0
  O  O11  1  0.761  0.750  0.011  1.0
  O  O12  1  0.767  0.270  0.004  1.0
  O  O13  1  0.767  0.763  0.496  1.0
[/CIF]
.