Ba3(MnN2)2 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 4-coordinate geometry to one N(1) and three equivalent N(2) atoms. In the second Ba site, Ba(2) is bonded in a 6-coordinate geometry to two equivalent N(2) and four equivalent N(1) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form edge-sharing MnN4 tetrahedra. In the second Mn site, Mn(2) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted edge-sharing MnN4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 2-coordinate geometry to one Ba(1), two equivalent Ba(2), one Mn(1), and one Mn(2) atom. In the second N site, N(2) is bonded in a 6-coordinate geometry to one Ba(2), three equivalent Ba(1), one Mn(1), and one Mn(2) atom.
Ba3(MnN2)2 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 4-coordinate geometry to one N(1) and three equivalent N(2) atoms. The Ba(1)-N(1) bond length is 2.64 Å. There is one shorter (2.72 Å) and two longer (2.83 Å) Ba(1)-N(2) bond lengths. In the second Ba site, Ba(2) is bonded in a 6-coordinate geometry to two equivalent N(2) and four equivalent N(1) atoms. Both Ba(2)-N(2) bond lengths are 3.11 Å. All Ba(2)-N(1) bond lengths are 2.88 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form edge-sharing MnN4 tetrahedra. Both Mn(1)-N(1) bond lengths are 1.86 Å. Both Mn(1)-N(2) bond lengths are 1.87 Å. In the second Mn site, Mn(2) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted edge-sharing MnN4 tetrahedra. Both Mn(2)-N(1) bond lengths are 1.90 Å. Both Mn(2)-N(2) bond lengths are 1.92 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 2-coordinate geometry to one Ba(1), two equivalent Ba(2), one Mn(1), and one Mn(2) atom. In the second N site, N(2) is bonded in a 6-coordinate geometry to one Ba(2), three equivalent Ba(1), one Mn(1), and one Mn(2) atom.