cis‐Dioxocyclam

Molecules of 1,4,8,11‐tetra­aza­cyclo­tetra­decane‐5,7‐dione, or cis‐dioxocyclam, C₁₀H₂₀N₄O₂, lie across mirror planes in space group Cmca; the crystal structure reveals interleaved columns of cis‐dioxocyclam mol­ecules along the 2₁ screw axis parallel to the crystallographic b axis. The columns are interconnected in a chain‐like arrangement by an amido hydrogen‐bonding network (N?O = 2.816 Å) and an amino hydrogen‐bonding network (N?N = 3.193 Å). The intracolumn spacing is 9.02 Å.