MgLa2CoZnO6 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(5), and one O(6) atom to form distorted MgO5 trigonal bipyramids that share corners with three equivalent Co(1)O6 octahedra,  a cornercorner with one Zn(1)O4 trigonal pyramid,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Zn(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 10-69°. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the second La site, La(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms. Co(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted CoO6 octahedra that share corners with three equivalent Mg(1)O5 trigonal bipyramids, corners with two equivalent Zn(1)O4 trigonal pyramids,  an edgeedge with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Zn(1)O4 trigonal pyramid. Zn(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form distorted ZnO4 trigonal pyramids that share corners with two equivalent Co(1)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 31-68°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one La(2), and one Co(1) atom. In the second O site, O(2) is bonded to one Mg(1), one La(1), one La(2), and one Co(1) atom to form a mixture of distorted corner and edge-sharing OLa2MgCo trigonal pyramids. In the third O site, O(3) is bonded to one Mg(1), one La(1), one La(2), one Co(1), and one Zn(1) atom to form a mixture of distorted corner and edge-sharing OLa2MgZnCo trigonal bipyramids. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one La(1), two equivalent La(2), one Co(1), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one Co(1), and one Zn(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one Co(1), and one Zn(1) atom.
MgLa2CoZnO6 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(5), and one O(6) atom to form distorted MgO5 trigonal bipyramids that share corners with three equivalent Co(1)O6 octahedra,  a cornercorner with one Zn(1)O4 trigonal pyramid,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Zn(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 10-69°. The Mg(1)-O(1) bond length is 2.01 Å. The Mg(1)-O(2) bond length is 1.99 Å. The Mg(1)-O(3) bond length is 2.13 Å. The Mg(1)-O(5) bond length is 2.02 Å. The Mg(1)-O(6) bond length is 2.46 Å. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The La(1)-O(1) bond length is 2.48 Å. The La(1)-O(2) bond length is 2.48 Å. The La(1)-O(3) bond length is 2.44 Å. The La(1)-O(4) bond length is 2.37 Å. The La(1)-O(5) bond length is 2.50 Å. The La(1)-O(6) bond length is 2.56 Å. In the second La site, La(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms. The La(2)-O(1) bond length is 2.39 Å. The La(2)-O(2) bond length is 2.45 Å. The La(2)-O(3) bond length is 2.57 Å. The La(2)-O(5) bond length is 2.37 Å. The La(2)-O(6) bond length is 2.47 Å. There is one shorter (2.54 Å) and one longer (3.03 Å) La(2)-O(4) bond length. Co(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted CoO6 octahedra that share corners with three equivalent Mg(1)O5 trigonal bipyramids, corners with two equivalent Zn(1)O4 trigonal pyramids,  an edgeedge with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Zn(1)O4 trigonal pyramid. The Co(1)-O(1) bond length is 2.14 Å. The Co(1)-O(2) bond length is 2.00 Å. The Co(1)-O(3) bond length is 2.40 Å. The Co(1)-O(4) bond length is 2.17 Å. The Co(1)-O(5) bond length is 2.59 Å. The Co(1)-O(6) bond length is 2.05 Å. Zn(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form distorted ZnO4 trigonal pyramids that share corners with two equivalent Co(1)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 31-68°. The Zn(1)-O(3) bond length is 2.04 Å. The Zn(1)-O(4) bond length is 1.99 Å. The Zn(1)-O(5) bond length is 2.10 Å. The Zn(1)-O(6) bond length is 1.99 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one La(2), and one Co(1) atom. In the second O site, O(2) is bonded to one Mg(1), one La(1), one La(2), and one Co(1) atom to form a mixture of distorted corner and edge-sharing OLa2MgCo trigonal pyramids. In the third O site, O(3) is bonded to one Mg(1), one La(1), one La(2), one Co(1), and one Zn(1) atom to form a mixture of distorted corner and edge-sharing OLa2MgZnCo trigonal bipyramids. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one La(1), two equivalent La(2), one Co(1), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one Co(1), and one Zn(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one Co(1), and one Zn(1) atom.