The compound described by CoZnO2 is Caswellsilverite-like structured and crystallizes in the triclinic P1 space group. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to three equivalent O(4) and three equivalent O(6) atoms to form CoO6 octahedra that share corners with three equivalent Zn(1)O6 octahedra, corners with three equivalent Zn(4)O6 octahedra, edges with three equivalent Zn(1)O6 octahedra, edges with three equivalent Zn(4)O6 octahedra, and edges with six equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Co site, Co(2) is bonded to three equivalent O(1) and three equivalent O(7) atoms to form CoO6 octahedra that share corners with three equivalent Zn(1)O6 octahedra, corners with three equivalent Zn(2)O6 octahedra, edges with three equivalent Zn(1)O6 octahedra, edges with three equivalent Zn(2)O6 octahedra, and edges with six equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-5°. In the third Co site, Co(3) is bonded to three equivalent O(2) and three equivalent O(8) atoms to form CoO6 octahedra that share corners with three equivalent Zn(2)O6 octahedra, corners with three equivalent Zn(3)O6 octahedra, edges with three equivalent Zn(2)O6 octahedra, edges with three equivalent Zn(3)O6 octahedra, and edges with six equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the fourth Co site, Co(4) is bonded to three equivalent O(3) and three equivalent O(5) atoms to form CoO6 octahedra that share corners with three equivalent Zn(3)O6 octahedra, corners with three equivalent Zn(4)O6 octahedra, edges with three equivalent Zn(3)O6 octahedra, edges with three equivalent Zn(4)O6 octahedra, and edges with six equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-5°. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to three equivalent O(4) and three equivalent O(7) atoms to form ZnO6 octahedra that share corners with three equivalent Co(1)O6 octahedra, corners with three equivalent Co(2)O6 octahedra, edges with three equivalent Co(1)O6 octahedra, edges with three equivalent Co(2)O6 octahedra, and edges with six equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the second Zn site, Zn(2) is bonded to three equivalent O(1) and three equivalent O(8) atoms to form ZnO6 octahedra that share corners with three equivalent Co(2)O6 octahedra, corners with three equivalent Co(3)O6 octahedra, edges with three equivalent Co(2)O6 octahedra, edges with three equivalent Co(3)O6 octahedra, and edges with six equivalent Zn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the third Zn site, Zn(3) is bonded to three equivalent O(2) and three equivalent O(5) atoms to form ZnO6 octahedra that share corners with three equivalent Co(3)O6 octahedra, corners with three equivalent Co(4)O6 octahedra, edges with three equivalent Co(3)O6 octahedra, edges with three equivalent Co(4)O6 octahedra, and edges with six equivalent Zn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the fourth Zn site, Zn(4) is bonded to three equivalent O(3) and three equivalent O(6) atoms to form ZnO6 octahedra that share corners with three equivalent Co(1)O6 octahedra, corners with three equivalent Co(4)O6 octahedra, edges with three equivalent Co(1)O6 octahedra, edges with three equivalent Co(4)O6 octahedra, and edges with six equivalent Zn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. There are eight inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Co(2) and three equivalent Zn(2) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second O site, O(2) is bonded to three equivalent Co(3) and three equivalent Zn(3) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the third O site, O(3) is bonded to three equivalent Co(4) and three equivalent Zn(4) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fourth O site, O(4) is bonded to three equivalent Co(1) and three equivalent Zn(1) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fifth O site, O(5) is bonded to three equivalent Co(4) and three equivalent Zn(3) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the sixth O site, O(6) is bonded to three equivalent Co(1) and three equivalent Zn(4) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the seventh O site, O(7) is bonded to three equivalent Co(2) and three equivalent Zn(1) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the eighth O site, O(8) is bonded to three equivalent Co(3) and three equivalent Zn(2) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. is represented by the Crystallographic Information File (CIF) [CIF]
data_ZnCoO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.009
_cell_length_b   3.055
_cell_length_c   10.041
_cell_angle_alpha   82.101
_cell_angle_beta   89.940
_cell_angle_gamma   60.581
_symmetry_Int_Tables_number   1
_cell_volume   79.418
_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
  Co  Co0  1  0.250  0.500  0.750  1.0
  Co  Co1  1  0.750  0.500  0.250  1.0
  O  O2  1  0.146  0.709  0.371  1.0
  O  O3  1  0.625  0.755  0.875  1.0
  O  O4  1  0.354  0.291  0.129  1.0
  O  O5  1  0.876  0.245  0.625  1.0
  Zn  Zn6  1  0.995  0.011  0.002  1.0
  Zn  Zn7  1  0.505  0.989  0.498  1.0
[/CIF]
.
The compound described by CoZnO2 is Caswellsilverite-like structured and crystallizes in the triclinic P1 space group. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to three equivalent O(4) and three equivalent O(6) atoms to form CoO6 octahedra that share corners with three equivalent Zn(1)O6 octahedra, corners with three equivalent Zn(4)O6 octahedra, edges with three equivalent Zn(1)O6 octahedra, edges with three equivalent Zn(4)O6 octahedra, and edges with six equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Co site, Co(2) is bonded to three equivalent O(1) and three equivalent O(7) atoms to form CoO6 octahedra that share corners with three equivalent Zn(1)O6 octahedra, corners with three equivalent Zn(2)O6 octahedra, edges with three equivalent Zn(1)O6 octahedra, edges with three equivalent Zn(2)O6 octahedra, and edges with six equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-5°. In the third Co site, Co(3) is bonded to three equivalent O(2) and three equivalent O(8) atoms to form CoO6 octahedra that share corners with three equivalent Zn(2)O6 octahedra, corners with three equivalent Zn(3)O6 octahedra, edges with three equivalent Zn(2)O6 octahedra, edges with three equivalent Zn(3)O6 octahedra, and edges with six equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the fourth Co site, Co(4) is bonded to three equivalent O(3) and three equivalent O(5) atoms to form CoO6 octahedra that share corners with three equivalent Zn(3)O6 octahedra, corners with three equivalent Zn(4)O6 octahedra, edges with three equivalent Zn(3)O6 octahedra, edges with three equivalent Zn(4)O6 octahedra, and edges with six equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-5°. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to three equivalent O(4) and three equivalent O(7) atoms to form ZnO6 octahedra that share corners with three equivalent Co(1)O6 octahedra, corners with three equivalent Co(2)O6 octahedra, edges with three equivalent Co(1)O6 octahedra, edges with three equivalent Co(2)O6 octahedra, and edges with six equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the second Zn site, Zn(2) is bonded to three equivalent O(1) and three equivalent O(8) atoms to form ZnO6 octahedra that share corners with three equivalent Co(2)O6 octahedra, corners with three equivalent Co(3)O6 octahedra, edges with three equivalent Co(2)O6 octahedra, edges with three equivalent Co(3)O6 octahedra, and edges with six equivalent Zn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the third Zn site, Zn(3) is bonded to three equivalent O(2) and three equivalent O(5) atoms to form ZnO6 octahedra that share corners with three equivalent Co(3)O6 octahedra, corners with three equivalent Co(4)O6 octahedra, edges with three equivalent Co(3)O6 octahedra, edges with three equivalent Co(4)O6 octahedra, and edges with six equivalent Zn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the fourth Zn site, Zn(4) is bonded to three equivalent O(3) and three equivalent O(6) atoms to form ZnO6 octahedra that share corners with three equivalent Co(1)O6 octahedra, corners with three equivalent Co(4)O6 octahedra, edges with three equivalent Co(1)O6 octahedra, edges with three equivalent Co(4)O6 octahedra, and edges with six equivalent Zn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. There are eight inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Co(2) and three equivalent Zn(2) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second O site, O(2) is bonded to three equivalent Co(3) and three equivalent Zn(3) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the third O site, O(3) is bonded to three equivalent Co(4) and three equivalent Zn(4) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fourth O site, O(4) is bonded to three equivalent Co(1) and three equivalent Zn(1) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fifth O site, O(5) is bonded to three equivalent Co(4) and three equivalent Zn(3) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the sixth O site, O(6) is bonded to three equivalent Co(1) and three equivalent Zn(4) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the seventh O site, O(7) is bonded to three equivalent Co(2) and three equivalent Zn(1) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the eighth O site, O(8) is bonded to three equivalent Co(3) and three equivalent Zn(2) atoms to form a mixture of edge and corner-sharing OZn3Co3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. is represented by the Crystallographic Information File (CIF) [CIF]
data_ZnCoO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.009
_cell_length_b   3.055
_cell_length_c   10.041
_cell_angle_alpha   82.101
_cell_angle_beta   89.940
_cell_angle_gamma   60.581
_symmetry_Int_Tables_number   1
_cell_volume   79.418
_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
  Co  Co0  1  0.250  0.500  0.750  1.0
  Co  Co1  1  0.750  0.500  0.250  1.0
  O  O2  1  0.146  0.709  0.371  1.0
  O  O3  1  0.625  0.755  0.875  1.0
  O  O4  1  0.354  0.291  0.129  1.0
  O  O5  1  0.876  0.245  0.625  1.0
  Zn  Zn6  1  0.995  0.011  0.002  1.0
  Zn  Zn7  1  0.505  0.989  0.498  1.0
[/CIF]
.