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-methyl-7,17-diaza-3,11-diazoniabicyclo[11.3.1]heptadeca-1(17),13,15-triene dichloride monohydrate, C(14)H(26)N(4)(2+).2Cl(-).H(2)O, (I), and 7-methyl-17-aza-3,7,11-triazoniabicyclo[11.3.1]heptadeca-1(17),13,15-triene 2.826-chloride 0.174-nitrate, C(14)H(27)N(4)(3+).2.826Cl(-).0.174NO(3)(-), (II), are reported. Protonation 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 bonds. The macrocyclic hole is quite different in both structures, as is observed by comparing particularly the N3.N4 distances [2.976 (4) and 4.175 (4) A for (I) and (II), respectively]. In (II), a Cl(-) ion alternates with an NO(3)(-) ion in a disordered structure.
Lodeiro
C
C
Departamento de Química Inorgánica, Facultade de Química, Avd. das Ciencias s/n, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Galicia, Spain.
Bastida
R
R
Macías
A
A
Rodríguez
A
A
Saint-Maurice
A
A