Two hydrochlorides of 7-methyl-3,7,11,17-tetraazabicyclo[11.3.1]-heptadeca-1(17),13,15-triene

The X-ray structure determinations of the two title compounds, namely 7-met hyl-7,17-diaza-3,11-diazoniabicyclo [11.3.1]heptadeca-1(17),13,15-triene di chloride monohydrate, C14H26N42+. 2Cl(-). H2O, (I), and 7-methyl-17-aza-3,7 ,11-triazoniabicyclo[11.3.1]heptadeca-1(17),13,15-triene 2.826-chloride 0.1 74-nitrate, C14H27N43+. 2.826Cl(-). 0.174NO(3)(-), (II), are reported. Prot onation occurs at the secondary amine N atoms in (I) and at all three amine N atoms in (II) to which the Cl- ions are linked via N-H ... Cl hydrogen b onds. The macrocyclic hole is quite different in both structures, as is obs erved by comparing particularly the N3 ... N4 distances [2.976 (4) and 4.17 5 (4) Angstrom for (I) and (II), respectively]. In (II), a Cl- ion alternat es with an NO3- ion in a disordered structure.