Cobalt(II) complexes of piperazine and derivatives: 1-methylpiperazin-4-ium trichloro(1-methylpiperazine-N4)cobaltate(II)

The title compound, (C 5 H 13 N 2 )[CoCl 3 (C 5 H 12 N 2 )], contains a Co II ion coordinated to three Cl atoms and to the unmethylated N atom of N-methylpiperazine in a distorted tetrahedral geometry. The six-membered ring of both the coordinated and free N-methylpiperazine molecules possesses the more stable chair conformation. In addition, other tautomeric forms may be present in small amounts in the crystals.