2-(Pyridin-2-yl)pyridinium trifluoromethanesulfonate
2-(Pyridin-2-yl)pyridinium trifluoromethanesulfonate
复制标题
2-(吡啶-2-基)吡啶鎓三氟甲磺酸盐
DOI：
10.1107/s2414314617006897
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Oyama Dai
中科院分区：
文献类型：
--
作者：
Abe Ryosuke;Takase Tsugiko;Oyama Dai
尽管在标题盐C10H9N2+·CF3SO3−中，芳环内的CC和CN键长是正常的，但质子化和未质子化的N原子处的CNC角存在相当大的差异，即。分别为 123.42 (10) 和 117.10 (11)°。阳离子内部以及阳离子和阴离子之间形成分叉的 N—H⋯X（X = N 或 O）氢键。结果，阳离子在固态下以顺式构象存在。相邻阳离子的非质子化吡啶环之间也存在明显的 π-π 接触。
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—H⋯X (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 π–π contact is also present between the non-protonated pyridyl rings of neighbouring cations.