Ba2MgPrNbO6 is Krennerite-derived structured and crystallizes in the triclinic P1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to one O(4), one O(5), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Ba site, Ba(2) 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. 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. Pr(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. Nb(1) is bonded in a distorted octahedral 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 5-coordinate geometry to one Ba(2), two equivalent Ba(1), one Mg(1), one Pr(1), and one Nb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ba(2), two equivalent Ba(1), one Mg(1), one Pr(1), and one Nb(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Ba(2), two equivalent Ba(1), one Mg(1), one Pr(1), and one Nb(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), one Pr(1), and one Nb(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), one Pr(1), and one Nb(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), one Pr(1), and one Nb(1) atom.
Ba2MgPrNbO6 is Krennerite-derived structured and crystallizes in the triclinic P1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to one O(4), one O(5), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. The Ba(1)-O(4) bond length is 2.81 Å. The Ba(1)-O(5) bond length is 2.82 Å. The Ba(1)-O(6) bond length is 2.81 Å. There is one shorter (2.70 Å) and one longer (3.18 Å) Ba(1)-O(1) bond length. There is one shorter (2.70 Å) and one longer (3.17 Å) Ba(1)-O(2) bond length. There is one shorter (2.70 Å) and one longer (3.18 Å) Ba(1)-O(3) bond length. In the second Ba site, Ba(2) 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 Ba(2)-O(1) bond length is 2.61 Å. The Ba(2)-O(2) bond length is 2.61 Å. The Ba(2)-O(3) bond length is 2.61 Å. The Ba(2)-O(4) bond length is 2.78 Å. The Ba(2)-O(5) bond length is 2.77 Å. The Ba(2)-O(6) bond length is 2.78 Å. 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 2.00 Å. The Mg(1)-O(2) bond length is 2.00 Å. The Mg(1)-O(3) bond length is 2.00 Å. The Mg(1)-O(4) bond length is 2.62 Å. The Mg(1)-O(5) bond length is 2.58 Å. The Mg(1)-O(6) bond length is 2.57 Å. Pr(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 Pr(1)-O(1) bond length is 2.66 Å. The Pr(1)-O(2) bond length is 2.67 Å. The Pr(1)-O(3) bond length is 2.65 Å. The Pr(1)-O(4) bond length is 2.53 Å. The Pr(1)-O(5) bond length is 2.53 Å. The Pr(1)-O(6) bond length is 2.54 Å. Nb(1) is bonded in a distorted octahedral geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Nb(1)-O(1) bond length is 2.19 Å. The Nb(1)-O(2) bond length is 2.19 Å. The Nb(1)-O(3) bond length is 2.19 Å. The Nb(1)-O(4) bond length is 2.02 Å. The Nb(1)-O(5) bond length is 2.03 Å. The Nb(1)-O(6) bond length is 2.03 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Ba(2), two equivalent Ba(1), one Mg(1), one Pr(1), and one Nb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ba(2), two equivalent Ba(1), one Mg(1), one Pr(1), and one Nb(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Ba(2), two equivalent Ba(1), one Mg(1), one Pr(1), and one Nb(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), one Pr(1), and one Nb(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), one Pr(1), and one Nb(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), one Pr(1), and one Nb(1) atom.