K3ReC4(N2O)2 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 4-coordinate geometry to one N(1), one N(2), and two equivalent O(1) atoms. In the second K site, K(2) is bonded in a 4-coordinate geometry to two equivalent C(2) and two equivalent N(2) atoms. Re(1) is bonded in a 2-coordinate geometry to two equivalent C(1), two equivalent N(1), and two equivalent O(1) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted linear geometry to one Re(1) and one N(2) atom. In the second C site, C(2) is bonded in a distorted single-bond geometry to one K(2) and one N(1) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 3-coordinate geometry to one K(1), one Re(1), and one C(2) atom. In the second N site, N(2) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one C(1) atom. O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one Re(1) atom.
K3ReC4(N2O)2 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 4-coordinate geometry to one N(1), one N(2), and two equivalent O(1) atoms. The K(1)-N(1) bond length is 2.91 Å. The K(1)-N(2) bond length is 2.88 Å. There is one shorter (2.74 Å) and one longer (2.77 Å) K(1)-O(1) bond length. In the second K site, K(2) is bonded in a 4-coordinate geometry to two equivalent C(2) and two equivalent N(2) atoms. Both K(2)-C(2) bond lengths are 2.87 Å. Both K(2)-N(2) bond lengths are 2.94 Å. Re(1) is bonded in a 2-coordinate geometry to two equivalent C(1), two equivalent N(1), and two equivalent O(1) atoms. Both Re(1)-C(1) bond lengths are 2.12 Å. Both Re(1)-N(1) bond lengths are 2.32 Å. Both Re(1)-O(1) bond lengths are 1.80 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted linear geometry to one Re(1) and one N(2) atom. The C(1)-N(2) bond length is 1.18 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one K(2) and one N(1) atom. The C(2)-N(1) bond length is 1.20 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 3-coordinate geometry to one K(1), one Re(1), and one C(2) atom. In the second N site, N(2) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one C(1) atom. O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one Re(1) atom.