MgLaTaCrO6 crystallizes in the monoclinic Pc space group. Mg(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. La(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), and two equivalent O(5) atoms. Ta(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. Cr(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. 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 Ta(1), and one Cr(1) atom. In the second O site, O(2) is bonded to one Mg(1), one La(1), one Ta(1), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLaMgTaCr trigonal pyramids. In the third O site, O(3) is bonded to one Mg(1), one La(1), one Ta(1), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLaMgTaCr trigonal pyramids. In the fourth O site, O(4) is bonded to one Mg(1), one La(1), one Ta(1), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLaMgTaCr trigonal pyramids. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent La(1), one Ta(1), and one Cr(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one Ta(1), and one Cr(1) atom.
MgLaTaCrO6 crystallizes in the monoclinic Pc space group. Mg(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 Mg(1)-O(1) bond length is 2.19 Å. The Mg(1)-O(2) bond length is 2.58 Å. The Mg(1)-O(3) bond length is 2.30 Å. The Mg(1)-O(4) bond length is 2.23 Å. The Mg(1)-O(5) bond length is 2.25 Å. The Mg(1)-O(6) bond length is 2.06 Å. La(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), and two equivalent O(5) atoms. The La(1)-O(1) bond length is 2.33 Å. The La(1)-O(2) bond length is 2.42 Å. The La(1)-O(3) bond length is 2.35 Å. The La(1)-O(4) bond length is 2.55 Å. The La(1)-O(6) bond length is 2.47 Å. There is one shorter (2.66 Å) and one longer (2.98 Å) La(1)-O(5) bond length. Ta(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Ta(1)-O(1) bond length is 2.00 Å. The Ta(1)-O(2) bond length is 1.98 Å. The Ta(1)-O(3) bond length is 2.01 Å. The Ta(1)-O(4) bond length is 2.07 Å. The Ta(1)-O(5) bond length is 2.02 Å. The Ta(1)-O(6) bond length is 1.98 Å. Cr(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 Cr(1)-O(1) bond length is 2.50 Å. The Cr(1)-O(2) bond length is 2.01 Å. The Cr(1)-O(3) bond length is 2.10 Å. The Cr(1)-O(4) bond length is 2.13 Å. The Cr(1)-O(5) bond length is 2.07 Å. The Cr(1)-O(6) bond length is 2.72 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 Ta(1), and one Cr(1) atom. In the second O site, O(2) is bonded to one Mg(1), one La(1), one Ta(1), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLaMgTaCr trigonal pyramids. In the third O site, O(3) is bonded to one Mg(1), one La(1), one Ta(1), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLaMgTaCr trigonal pyramids. In the fourth O site, O(4) is bonded to one Mg(1), one La(1), one Ta(1), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLaMgTaCr trigonal pyramids. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent La(1), one Ta(1), and one Cr(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one Ta(1), and one Cr(1) atom.