2-(Pyridin-2-yl)pyridinium tri-fluoro-methane-sulfonate

摘要

Although in the title salt, C10H9N2 + CF3SO3 , the C—C and C—N bond lengths within the aromatic rings are normal, there is a considerable difference in the C—N—C angles at the protonated and unprotonated N atoms, viz. 123.42 (10) and 117.10 (11), respectively. Bifurcated N—HX (X = N or O) hydrogen bonds form within the cation and between cation and anion. As a result, the cation exists in a cis conformation in the solid state. An obvious – contact is also present between the non-protonated pyridyl rings of neighbouring cations.