BaC2(N3O2)2 crystallizes in the monoclinic C2 space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent N(2), two equivalent N(3), two equivalent O(2), and four equivalent O(1) atoms. C(1) is bonded in a distorted trigonal planar geometry to one N(1), one O(1), and one O(2) atom. There are three inequivalent N sites. In the first N site, N(1) is bonded in a bent 120 degrees geometry to one C(1) and one N(3) atom. In the second N site, N(2) is bonded in a bent 120 degrees geometry to one Ba(1) and one N(2) atom. In the third N site, N(3) is bonded in a water-like geometry to one Ba(1) and one N(1) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Ba(1) and one C(1) atom.
BaC2(N3O2)2 crystallizes in the monoclinic C2 space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent N(2), two equivalent N(3), two equivalent O(2), and four equivalent O(1) atoms. Both Ba(1)-N(2) bond lengths are 3.30 Å. Both Ba(1)-N(3) bond lengths are 3.27 Å. Both Ba(1)-O(2) bond lengths are 2.79 Å. There are two shorter (2.76 Å) and two longer (2.95 Å) Ba(1)-O(1) bond lengths. C(1) is bonded in a distorted trigonal planar geometry to one N(1), one O(1), and one O(2) atom. The C(1)-N(1) bond length is 1.77 Å. The C(1)-O(1) bond length is 1.25 Å. The C(1)-O(2) bond length is 1.23 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a bent 120 degrees geometry to one C(1) and one N(3) atom. The N(1)-N(3) bond length is 1.16 Å. In the second N site, N(2) is bonded in a bent 120 degrees geometry to one Ba(1) and one N(2) atom. The N(2)-N(2) bond length is 1.12 Å. In the third N site, N(3) is bonded in a water-like geometry to one Ba(1) and one N(1) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Ba(1) and one C(1) atom.