The structure described by ZnCo2O4 is Spinel-like structured and crystallizes in the trigonal P3m1 space group. There are six inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(6), two equivalent O(1), and two equivalent O(4) atoms to form CoO6 octahedra that share  a cornercorner with one Co(6)O4 tetrahedra,  a cornercorner with one Zn(2)O4 tetrahedra, corners with two equivalent Co(4)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra,  an edgeedge with one Zn(3)O6 octahedra,  an edgeedge with one Zn(5)O6 octahedra, and edges with four equivalent Co(1)O6 octahedra. In the second Co site, Co(2) is bonded to one O(10), one O(5), two equivalent O(3), and two equivalent O(8) atoms to form CoO6 octahedra that share  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Zn(4)O4 tetrahedra, corners with two equivalent Zn(2)O4 tetrahedra, corners with two equivalent Zn(6)O4 tetrahedra,  an edgeedge with one Co(3)O6 octahedra,  an edgeedge with one Zn(3)O6 octahedra, and edges with four equivalent Co(2)O6 octahedra. In the third Co site, Co(3) is bonded to three equivalent O(7) and three equivalent O(8) atoms to form CoO6 octahedra that share corners with three equivalent Zn(4)O4 tetrahedra, corners with three equivalent Zn(6)O4 tetrahedra, edges with three equivalent Co(2)O6 octahedra, and edges with three equivalent Co(5)O6 octahedra. In the fourth Co site, Co(4) is bonded to one O(10) and three equivalent O(4) atoms to form CoO4 tetrahedra that share corners with three equivalent Co(2)O6 octahedra, corners with three equivalent Zn(3)O6 octahedra, and corners with six equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-61°. In the fifth Co site, Co(5) is bonded to one O(12), one O(9), two equivalent O(11), and two equivalent O(7) atoms to form CoO6 octahedra that share  a cornercorner with one Zn(1)O4 tetrahedra,  a cornercorner with one Zn(6)O4 tetrahedra, corners with two equivalent Co(6)O4 tetrahedra, corners with two equivalent Zn(4)O4 tetrahedra,  an edgeedge with one Co(3)O6 octahedra,  an edgeedge with one Zn(5)O6 octahedra, and edges with four equivalent Co(5)O6 octahedra. In the sixth Co site, Co(6) is bonded to one O(6) and three equivalent O(11) atoms to form CoO4 tetrahedra that share corners with three equivalent Co(1)O6 octahedra, corners with three equivalent Zn(5)O6 octahedra, and corners with six equivalent Co(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-62°. There are six inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(9) and three equivalent O(1) atoms to form ZnO4 tetrahedra that share corners with three equivalent Co(5)O6 octahedra, corners with three equivalent Zn(5)O6 octahedra, and corners with six equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-62°. In the second Zn site, Zn(2) is bonded to one O(2) and three equivalent O(3) atoms to form ZnO4 tetrahedra that share corners with three equivalent Co(1)O6 octahedra, corners with three equivalent Zn(3)O6 octahedra, and corners with six equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-63°. In the third Zn site, Zn(3) is bonded to three equivalent O(3) and three equivalent O(4) atoms to form ZnO6 octahedra that share corners with three equivalent Co(4)O4 tetrahedra, corners with three equivalent Zn(2)O4 tetrahedra, edges with three equivalent Co(1)O6 octahedra, and edges with three equivalent Co(2)O6 octahedra. In the fourth Zn site, Zn(4) is bonded to one O(5) and three equivalent O(7) atoms to form ZnO4 tetrahedra that share corners with three equivalent Co(2)O6 octahedra, corners with three equivalent Co(3)O6 octahedra, and corners with six equivalent Co(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-60°. In the fifth Zn site, Zn(5) is bonded to three equivalent O(1) and three equivalent O(11) atoms to form ZnO6 octahedra that share corners with three equivalent Co(6)O4 tetrahedra, corners with three equivalent Zn(1)O4 tetrahedra, edges with three equivalent Co(1)O6 octahedra, and edges with three equivalent Co(5)O6 octahedra. In the sixth Zn site, Zn(6) is bonded to one O(12) and three equivalent O(8) atoms to form ZnO4 tetrahedra that share corners with three equivalent Co(3)O6 octahedra, corners with three equivalent Co(5)O6 octahedra, and corners with six equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles are 58°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Co(1), one Zn(1), and one Zn(5) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Co(1) and one Zn(2) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to two equivalent Co(2), one Zn(2), and one Zn(3) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Co(4), two equivalent Co(1), and one Zn(3) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Co(2) and one Zn(4) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Co(6) and three equivalent Co(1) atoms. In the seventh O site, O(7) is bonded to one Co(3), two equivalent Co(5), and one Zn(4) atom to form a mixture of distorted corner and edge-sharing OZnCo3 trigonal pyramids. In the eighth O site, O(8) is bonded to one Co(3), two equivalent Co(2), and one Zn(6) atom to form a mixture of distorted corner and edge-sharing OZnCo3 trigonal pyramids. In the ninth O site, O(9) is bonded to three equivalent Co(5) and one Zn(1) atom to form a mixture of distorted corner and edge-sharing OZnCo3 trigonal pyramids. In the tenth O site, O(10) is bonded in a distorted rectangular see-saw-like geometry to one Co(4) and three equivalent Co(2) atoms. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Co(6), two equivalent Co(5), and one Zn(5) atom. In the twelfth O site, O(12) is bonded to three equivalent Co(5) and one Zn(6) atom to form distorted corner-sharing OZnCo3 trigonal pyramids. is represented by the CIF card [CIF]
data_Zn(CoO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.953
_cell_length_b   5.953
_cell_length_c   14.706
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   451.346
_cell_formula_units_Z   6
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  0.333  0.667  0.957  1.0
  Zn  Zn1  1  0.000  0.000  0.623  1.0
  Zn  Zn2  1  0.667  0.333  0.666  1.0
  Zn  Zn3  1  0.667  0.333  0.291  1.0
  Zn  Zn4  1  0.000  0.000  1.000  1.0
  Zn  Zn5  1  0.000  0.000  0.375  1.0
  Co  Co6  1  0.834  0.166  0.833  1.0
  Co  Co7  1  0.834  0.668  0.833  1.0
  Co  Co8  1  0.501  0.499  0.500  1.0
  Co  Co9  1  0.332  0.166  0.833  1.0
  Co  Co10  1  0.501  0.001  0.500  1.0
  Co  Co11  1  0.333  0.667  0.336  1.0
  Co  Co12  1  0.333  0.667  0.710  1.0
  Co  Co13  1  0.166  0.834  0.167  1.0
  Co  Co14  1  0.999  0.499  0.500  1.0
  Co  Co15  1  0.166  0.333  0.167  1.0
  Co  Co16  1  0.667  0.834  0.167  1.0
  Co  Co17  1  0.667  0.333  0.043  1.0
  O  O18  1  0.155  0.845  0.907  1.0
  O  O19  1  0.000  0.000  0.758  1.0
  O  O20  1  0.155  0.310  0.907  1.0
  O  O21  1  0.690  0.845  0.907  1.0
  O  O22  1  0.824  0.176  0.572  1.0
  O  O23  1  0.980  0.490  0.758  1.0
  O  O24  1  0.667  0.333  0.425  1.0
  O  O25  1  0.510  0.020  0.758  1.0
  O  O26  1  0.667  0.333  0.909  1.0
  O  O27  1  0.824  0.648  0.572  1.0
  O  O28  1  0.352  0.176  0.572  1.0
  O  O29  1  0.510  0.490  0.758  1.0
  O  O30  1  0.482  0.518  0.249  1.0
  O  O31  1  0.639  0.820  0.421  1.0
  O  O32  1  0.180  0.361  0.421  1.0
  O  O33  1  0.333  0.667  0.093  1.0
  O  O34  1  0.333  0.667  0.575  1.0
  O  O35  1  0.482  0.964  0.249  1.0
  O  O36  1  0.036  0.518  0.249  1.0
  O  O37  1  0.180  0.820  0.421  1.0
  O  O38  1  0.312  0.156  0.093  1.0
  O  O39  1  0.844  0.688  0.093  1.0
  O  O40  1  0.000  0.000  0.241  1.0
  O  O41  1  0.844  0.156  0.093  1.0
[/CIF]
.
The structure described by ZnCo2O4 is Spinel-like structured and crystallizes in the trigonal P3m1 space group. There are six inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(6), two equivalent O(1), and two equivalent O(4) atoms to form CoO6 octahedra that share  a cornercorner with one Co(6)O4 tetrahedra,  a cornercorner with one Zn(2)O4 tetrahedra, corners with two equivalent Co(4)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra,  an edgeedge with one Zn(3)O6 octahedra,  an edgeedge with one Zn(5)O6 octahedra, and edges with four equivalent Co(1)O6 octahedra. In the second Co site, Co(2) is bonded to one O(10), one O(5), two equivalent O(3), and two equivalent O(8) atoms to form CoO6 octahedra that share  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Zn(4)O4 tetrahedra, corners with two equivalent Zn(2)O4 tetrahedra, corners with two equivalent Zn(6)O4 tetrahedra,  an edgeedge with one Co(3)O6 octahedra,  an edgeedge with one Zn(3)O6 octahedra, and edges with four equivalent Co(2)O6 octahedra. In the third Co site, Co(3) is bonded to three equivalent O(7) and three equivalent O(8) atoms to form CoO6 octahedra that share corners with three equivalent Zn(4)O4 tetrahedra, corners with three equivalent Zn(6)O4 tetrahedra, edges with three equivalent Co(2)O6 octahedra, and edges with three equivalent Co(5)O6 octahedra. In the fourth Co site, Co(4) is bonded to one O(10) and three equivalent O(4) atoms to form CoO4 tetrahedra that share corners with three equivalent Co(2)O6 octahedra, corners with three equivalent Zn(3)O6 octahedra, and corners with six equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-61°. In the fifth Co site, Co(5) is bonded to one O(12), one O(9), two equivalent O(11), and two equivalent O(7) atoms to form CoO6 octahedra that share  a cornercorner with one Zn(1)O4 tetrahedra,  a cornercorner with one Zn(6)O4 tetrahedra, corners with two equivalent Co(6)O4 tetrahedra, corners with two equivalent Zn(4)O4 tetrahedra,  an edgeedge with one Co(3)O6 octahedra,  an edgeedge with one Zn(5)O6 octahedra, and edges with four equivalent Co(5)O6 octahedra. In the sixth Co site, Co(6) is bonded to one O(6) and three equivalent O(11) atoms to form CoO4 tetrahedra that share corners with three equivalent Co(1)O6 octahedra, corners with three equivalent Zn(5)O6 octahedra, and corners with six equivalent Co(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-62°. There are six inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(9) and three equivalent O(1) atoms to form ZnO4 tetrahedra that share corners with three equivalent Co(5)O6 octahedra, corners with three equivalent Zn(5)O6 octahedra, and corners with six equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-62°. In the second Zn site, Zn(2) is bonded to one O(2) and three equivalent O(3) atoms to form ZnO4 tetrahedra that share corners with three equivalent Co(1)O6 octahedra, corners with three equivalent Zn(3)O6 octahedra, and corners with six equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-63°. In the third Zn site, Zn(3) is bonded to three equivalent O(3) and three equivalent O(4) atoms to form ZnO6 octahedra that share corners with three equivalent Co(4)O4 tetrahedra, corners with three equivalent Zn(2)O4 tetrahedra, edges with three equivalent Co(1)O6 octahedra, and edges with three equivalent Co(2)O6 octahedra. In the fourth Zn site, Zn(4) is bonded to one O(5) and three equivalent O(7) atoms to form ZnO4 tetrahedra that share corners with three equivalent Co(2)O6 octahedra, corners with three equivalent Co(3)O6 octahedra, and corners with six equivalent Co(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-60°. In the fifth Zn site, Zn(5) is bonded to three equivalent O(1) and three equivalent O(11) atoms to form ZnO6 octahedra that share corners with three equivalent Co(6)O4 tetrahedra, corners with three equivalent Zn(1)O4 tetrahedra, edges with three equivalent Co(1)O6 octahedra, and edges with three equivalent Co(5)O6 octahedra. In the sixth Zn site, Zn(6) is bonded to one O(12) and three equivalent O(8) atoms to form ZnO4 tetrahedra that share corners with three equivalent Co(3)O6 octahedra, corners with three equivalent Co(5)O6 octahedra, and corners with six equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles are 58°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Co(1), one Zn(1), and one Zn(5) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Co(1) and one Zn(2) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to two equivalent Co(2), one Zn(2), and one Zn(3) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Co(4), two equivalent Co(1), and one Zn(3) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Co(2) and one Zn(4) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Co(6) and three equivalent Co(1) atoms. In the seventh O site, O(7) is bonded to one Co(3), two equivalent Co(5), and one Zn(4) atom to form a mixture of distorted corner and edge-sharing OZnCo3 trigonal pyramids. In the eighth O site, O(8) is bonded to one Co(3), two equivalent Co(2), and one Zn(6) atom to form a mixture of distorted corner and edge-sharing OZnCo3 trigonal pyramids. In the ninth O site, O(9) is bonded to three equivalent Co(5) and one Zn(1) atom to form a mixture of distorted corner and edge-sharing OZnCo3 trigonal pyramids. In the tenth O site, O(10) is bonded in a distorted rectangular see-saw-like geometry to one Co(4) and three equivalent Co(2) atoms. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Co(6), two equivalent Co(5), and one Zn(5) atom. In the twelfth O site, O(12) is bonded to three equivalent Co(5) and one Zn(6) atom to form distorted corner-sharing OZnCo3 trigonal pyramids. is represented by the CIF card [CIF]
data_Zn(CoO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.953
_cell_length_b   5.953
_cell_length_c   14.706
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   451.346
_cell_formula_units_Z   6
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  0.333  0.667  0.957  1.0
  Zn  Zn1  1  0.000  0.000  0.623  1.0
  Zn  Zn2  1  0.667  0.333  0.666  1.0
  Zn  Zn3  1  0.667  0.333  0.291  1.0
  Zn  Zn4  1  0.000  0.000  1.000  1.0
  Zn  Zn5  1  0.000  0.000  0.375  1.0
  Co  Co6  1  0.834  0.166  0.833  1.0
  Co  Co7  1  0.834  0.668  0.833  1.0
  Co  Co8  1  0.501  0.499  0.500  1.0
  Co  Co9  1  0.332  0.166  0.833  1.0
  Co  Co10  1  0.501  0.001  0.500  1.0
  Co  Co11  1  0.333  0.667  0.336  1.0
  Co  Co12  1  0.333  0.667  0.710  1.0
  Co  Co13  1  0.166  0.834  0.167  1.0
  Co  Co14  1  0.999  0.499  0.500  1.0
  Co  Co15  1  0.166  0.333  0.167  1.0
  Co  Co16  1  0.667  0.834  0.167  1.0
  Co  Co17  1  0.667  0.333  0.043  1.0
  O  O18  1  0.155  0.845  0.907  1.0
  O  O19  1  0.000  0.000  0.758  1.0
  O  O20  1  0.155  0.310  0.907  1.0
  O  O21  1  0.690  0.845  0.907  1.0
  O  O22  1  0.824  0.176  0.572  1.0
  O  O23  1  0.980  0.490  0.758  1.0
  O  O24  1  0.667  0.333  0.425  1.0
  O  O25  1  0.510  0.020  0.758  1.0
  O  O26  1  0.667  0.333  0.909  1.0
  O  O27  1  0.824  0.648  0.572  1.0
  O  O28  1  0.352  0.176  0.572  1.0
  O  O29  1  0.510  0.490  0.758  1.0
  O  O30  1  0.482  0.518  0.249  1.0
  O  O31  1  0.639  0.820  0.421  1.0
  O  O32  1  0.180  0.361  0.421  1.0
  O  O33  1  0.333  0.667  0.093  1.0
  O  O34  1  0.333  0.667  0.575  1.0
  O  O35  1  0.482  0.964  0.249  1.0
  O  O36  1  0.036  0.518  0.249  1.0
  O  O37  1  0.180  0.820  0.421  1.0
  O  O38  1  0.312  0.156  0.093  1.0
  O  O39  1  0.844  0.688  0.093  1.0
  O  O40  1  0.000  0.000  0.241  1.0
  O  O41  1  0.844  0.156  0.093  1.0
[/CIF]
.