N,N′-Bis(2-aminobenzyl)ethane-1,2-diaminium dinitrate

Garza Rodríguez, Luis Ángel y Elizondo Martínez, Perla y Bernès, Sylvain y Nájera Martínez, Blanca y Pérez Rodríguez, Nancy (2013) N,N′-Bis(2-aminobenzyl)ethane-1,2-diaminium dinitrate. Acta crystallographica. Section E: Structure reports online, 69 (11). o1643-o1644. ISSN 1600-5368

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Resumen

In the title salt, C16H24N4 2+2NO3 , both the cation and anion are placed in general positions, although the cation displays non-crystallographic inversion symmetry, with the aliphatic chain extended in an all-trans conformation. The benzene rings are almost parallel, with a dihedral angle between their mean planes of 3.3 (6)�. The nitrate ions are placed in the vicinity of the protonated amine groups, forming efficient N— HO inter-ion hydrogen bonds. Each nitrate ion in the asymmetric unit bridges two symmetry-related cations, forming an R4 4 (18) ring, a common motif in organic ammonium nitrate salts. This results in the formation of chains along [010] with alternating cations and anions. The neutral amine groups are involved in slightly weaker N—HO hydrogen bonds with the nitrate O atoms, and there are also a number of C— HO hydrogen bonds present. The resulting supramolecular structure is based on a two-dimensional network extending in the ab plane.

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