Triazidocobalt(III) complexes with tridentate amine ligands

The title compounds, [N-(2-aminoethyl)-1,3-propanediamine- kappa N-3]triazidocobalt(III), [Co(N-3)(3)(C5H15N3)], [N-(2-aminoethyl)-N-methyl-1,3-propanediamine-kappa N-3]triazidocobalt(III), [Co(N-3)(3)(C6H17N3)], [N-(2-aminopropyl)-1,3-propanediamine-kappa (3) N]triazidocobalt(III), [Co(N-3)(3)(C6H17N3)], and [N-(2-aminopropyl)-N-methyl-1,3-propanediamine-kappa N-3]triazidocobalt(III), [Co(N-3)(3)(C7H19N3)], each consist of a Co-III atom, three azide ligands in a meridional configuration and a tridentate amine ligand, namely aepn [N-(2-aminoethyl)-1,3-propanediamine] or dpt [N-(3-aminopropyl)-1,3-propanediamine], or their N-methylated analogs.