LaTaCrZnO6 crystallizes in the monoclinic Pc space group. 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. Ta(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 TaO6 octahedra that share corners with six equivalent Cr(1)O6 octahedra, corners with two equivalent Zn(1)O4 trigonal pyramids, and  an edgeedge with one Zn(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 29-45°. Cr(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 CrO6 octahedra that share corners with six equivalent Ta(1)O6 octahedra, corners with two equivalent Zn(1)O4 trigonal pyramids, and  an edgeedge with one Zn(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 29-45°. Zn(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form distorted ZnO4 trigonal pyramids that share corners with two equivalent Ta(1)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra,  an edgeedge with one Ta(1)O6 octahedra, and  an edgeedge with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 59-78°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one La(1), one Ta(1), one Cr(1), and one Zn(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one La(1), one Ta(1), and one Cr(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one La(1), one Ta(1), and one Cr(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one La(1), one Ta(1), one Cr(1), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one La(1), one Ta(1), one Cr(1), and one Zn(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal pyramidal geometry to one La(1), one Ta(1), one Cr(1), and one Zn(1) atom.
LaTaCrZnO6 crystallizes in the monoclinic Pc space group. 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 2.34 Å. The La(1)-O(2) bond length is 2.40 Å. The La(1)-O(3) bond length is 2.41 Å. The La(1)-O(4) bond length is 2.58 Å. The La(1)-O(5) bond length is 2.57 Å. The La(1)-O(6) bond length is 2.53 Å. Ta(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 TaO6 octahedra that share corners with six equivalent Cr(1)O6 octahedra, corners with two equivalent Zn(1)O4 trigonal pyramids, and  an edgeedge with one Zn(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 29-45°. The Ta(1)-O(1) bond length is 1.97 Å. The Ta(1)-O(2) bond length is 1.93 Å. The Ta(1)-O(3) bond length is 1.91 Å. The Ta(1)-O(4) bond length is 2.22 Å. The Ta(1)-O(5) bond length is 2.13 Å. The Ta(1)-O(6) bond length is 2.02 Å. Cr(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 CrO6 octahedra that share corners with six equivalent Ta(1)O6 octahedra, corners with two equivalent Zn(1)O4 trigonal pyramids, and  an edgeedge with one Zn(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 29-45°. The Cr(1)-O(1) bond length is 2.44 Å. The Cr(1)-O(2) bond length is 2.05 Å. The Cr(1)-O(3) bond length is 2.08 Å. The Cr(1)-O(4) bond length is 2.09 Å. The Cr(1)-O(5) bond length is 2.18 Å. The Cr(1)-O(6) bond length is 2.54 Å. Zn(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form distorted ZnO4 trigonal pyramids that share corners with two equivalent Ta(1)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra,  an edgeedge with one Ta(1)O6 octahedra, and  an edgeedge with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 59-78°. The Zn(1)-O(1) bond length is 2.32 Å. The Zn(1)-O(4) bond length is 1.99 Å. The Zn(1)-O(5) bond length is 2.03 Å. The Zn(1)-O(6) bond length is 1.94 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one La(1), one Ta(1), one Cr(1), and one Zn(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one La(1), one Ta(1), and one Cr(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one La(1), one Ta(1), and one Cr(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one La(1), one Ta(1), one Cr(1), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one La(1), one Ta(1), one Cr(1), and one Zn(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal pyramidal geometry to one La(1), one Ta(1), one Cr(1), and one Zn(1) atom.