0000000001311450
AUTHOR
M.a. Fernandes
Crystal structures of 2,2′-bipyridin-1-ium 1,1,3,3-tetracyano-2-ethoxyprop-2-en-1-ide and bis(2,2′-bipyridin-1-ium) 1,1,3,3-tetracyano-2-(dicyanomethylene)propane-1,3-diide
In each of the title compounds, the anion shows evidence of extensive electronic delocalization. A combination of N—H⋯N and X—H⋯N hydrogen bonds links the ions in (I) into a ribbon of alternating centrosymmetric (18) and (26) rings, and those in (II) into simple (7) chains of alternating cations and anion with further cations pendent from the chain.
CCDC 1059033: Experimental Crystal Structure Determination
Related Article: Z. Setifi, A. Valkonen, M.A. Fernandes, S. Nummelin, H. Boughzala, F. Setifi, C. Glidewell|2015|Acta Crystallogr.,Sect.E:Cryst.Commun.|71|509|doi:10.1107/S2056989015007306
CCDC 1059034: Experimental Crystal Structure Determination
Related Article: Z. Setifi, A. Valkonen, M.A. Fernandes, S. Nummelin, H. Boughzala, F. Setifi, C. Glidewell|2015|Acta Crystallogr.,Sect.E:Cryst.Commun.|71|509|doi:10.1107/S2056989015007306