The structure described by MgZn(CoO2)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(5), two equivalent O(2), and two equivalent O(4) atoms to form MgO6 octahedra that share corners with two equivalent Co(3)O6 octahedra, corners with two equivalent Co(2)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and  a faceface with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-45°. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(4), one O(7), two equivalent O(5), and two equivalent O(6) atoms to form CoO6 octahedra that share corners with two equivalent Co(3)O6 octahedra,  a cornercorner with one Co(2)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-54°. In the second Co site, Co(2) is bonded to one O(4), one O(8), and two equivalent O(3) atoms to form CoO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra, and corners with two equivalent Co(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 52-74°. In the third Co site, Co(3) is bonded to one O(1), one O(6), two equivalent O(2), and two equivalent O(8) atoms to form distorted CoO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(2)O4 tetrahedra, edges with two equivalent Co(3)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-54°. In the fourth Co site, Co(4) is bonded in a 6-coordinate geometry to one O(5), one O(8), two equivalent O(1), and two equivalent O(7) atoms. Zn(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(6), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Co(3), and two equivalent Co(4) atoms to form distorted OMgCo3 tetrahedra that share corners with two equivalent O(1)MgCo3 tetrahedra, corners with two equivalent O(7)ZnCo3 trigonal pyramids, and  an edgeedge with one O(7)ZnCo3 trigonal pyramid. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Mg(1), two equivalent Co(3), and one Zn(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Co(2) and one Zn(1) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to two equivalent Mg(1), one Co(1), and one Co(2) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Co(4), and two equivalent Co(1) atoms. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Co(3), two equivalent Co(1), and one Zn(1) atom. In the seventh O site, O(7) is bonded to one Co(1), two equivalent Co(4), and one Zn(1) atom to form OZnCo3 trigonal pyramids that share corners with two equivalent O(1)MgCo3 tetrahedra, corners with two equivalent O(7)ZnCo3 trigonal pyramids, and  an edgeedge with one O(1)MgCo3 tetrahedra. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Co(2), one Co(4), and two equivalent Co(3) atoms. is represented by the CIF card [CIF]
data_MgZn(CoO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.039
_cell_length_b   7.789
_cell_length_c   8.163
_cell_angle_alpha   60.799
_cell_angle_beta   70.751
_cell_angle_gamma   81.090
_symmetry_Int_Tables_number   1
_cell_volume   159.209
_cell_formula_units_Z   1
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
  Mg  Mg0  1  0.154  0.337  0.638  1.0
  Zn  Zn1  1  0.331  0.046  0.120  1.0
  Co  Co2  1  0.929  0.182  0.401  1.0
  Co  Co3  1  0.949  0.633  0.170  1.0
  Co  Co4  1  0.759  0.438  0.929  1.0
  Co  Co5  1  0.410  0.800  0.605  1.0
  O  O6  1  0.943  0.606  0.665  1.0
  O  O7  1  0.485  0.273  0.859  1.0
  O  O8  1  0.420  0.788  0.134  1.0
  O  O9  1  0.806  0.423  0.428  1.0
  O  O10  1  0.295  0.074  0.596  1.0
  O  O11  1  0.604  0.240  0.193  1.0
  O  O12  1  0.025  0.924  0.412  1.0
  O  O13  1  0.145  0.596  0.948  1.0
[/CIF]
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The structure described by MgZn(CoO2)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(5), two equivalent O(2), and two equivalent O(4) atoms to form MgO6 octahedra that share corners with two equivalent Co(3)O6 octahedra, corners with two equivalent Co(2)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and  a faceface with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-45°. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(4), one O(7), two equivalent O(5), and two equivalent O(6) atoms to form CoO6 octahedra that share corners with two equivalent Co(3)O6 octahedra,  a cornercorner with one Co(2)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-54°. In the second Co site, Co(2) is bonded to one O(4), one O(8), and two equivalent O(3) atoms to form CoO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra, and corners with two equivalent Co(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 52-74°. In the third Co site, Co(3) is bonded to one O(1), one O(6), two equivalent O(2), and two equivalent O(8) atoms to form distorted CoO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(2)O4 tetrahedra, edges with two equivalent Co(3)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-54°. In the fourth Co site, Co(4) is bonded in a 6-coordinate geometry to one O(5), one O(8), two equivalent O(1), and two equivalent O(7) atoms. Zn(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(6), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Co(3), and two equivalent Co(4) atoms to form distorted OMgCo3 tetrahedra that share corners with two equivalent O(1)MgCo3 tetrahedra, corners with two equivalent O(7)ZnCo3 trigonal pyramids, and  an edgeedge with one O(7)ZnCo3 trigonal pyramid. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Mg(1), two equivalent Co(3), and one Zn(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Co(2) and one Zn(1) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to two equivalent Mg(1), one Co(1), and one Co(2) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Co(4), and two equivalent Co(1) atoms. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Co(3), two equivalent Co(1), and one Zn(1) atom. In the seventh O site, O(7) is bonded to one Co(1), two equivalent Co(4), and one Zn(1) atom to form OZnCo3 trigonal pyramids that share corners with two equivalent O(1)MgCo3 tetrahedra, corners with two equivalent O(7)ZnCo3 trigonal pyramids, and  an edgeedge with one O(1)MgCo3 tetrahedra. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Co(2), one Co(4), and two equivalent Co(3) atoms. is represented by the CIF card [CIF]
data_MgZn(CoO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.039
_cell_length_b   7.789
_cell_length_c   8.163
_cell_angle_alpha   60.799
_cell_angle_beta   70.751
_cell_angle_gamma   81.090
_symmetry_Int_Tables_number   1
_cell_volume   159.209
_cell_formula_units_Z   1
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
  Mg  Mg0  1  0.154  0.337  0.638  1.0
  Zn  Zn1  1  0.331  0.046  0.120  1.0
  Co  Co2  1  0.929  0.182  0.401  1.0
  Co  Co3  1  0.949  0.633  0.170  1.0
  Co  Co4  1  0.759  0.438  0.929  1.0
  Co  Co5  1  0.410  0.800  0.605  1.0
  O  O6  1  0.943  0.606  0.665  1.0
  O  O7  1  0.485  0.273  0.859  1.0
  O  O8  1  0.420  0.788  0.134  1.0
  O  O9  1  0.806  0.423  0.428  1.0
  O  O10  1  0.295  0.074  0.596  1.0
  O  O11  1  0.604  0.240  0.193  1.0
  O  O12  1  0.025  0.924  0.412  1.0
  O  O13  1  0.145  0.596  0.948  1.0
[/CIF]
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