artículo con referato
"4,4′-Bis(N,N-diethylamino)-2,2′-bipyridine"
P. Alborés, L.M. Baraldo, A. Ibañez and R. Baggio
Acta Cryst. C 60(12) (2004) o850-o852
Abstract
The title compound, C18H26N4, contains two almost identical independent molecules that lie about inversion centres. Each molecule has a planar bipyridine nucleus and two terminal diethylamine groups oriented at almost right angles to the core. These diethylamine branches act as spacers, producing a very open structure with one of the lowest densities reported among related compounds. The most important intermolecular interactions are of the C–H⋯π type, which connect non-equivalent moieties.
DIVISION MATERIA CONDENSADA