Xu Wei, Qi Jin-Li
Center of Applied Solid State Chemistry Research, Ningbo University, Ningbo 315211, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2012 Aug 1;68(Pt 8):o2319. doi: 10.1107/S1600536812029339. Epub 2012 Jul 4.
In the title molecular salt, C(13)H(15)N(2) (+)·C(8)H(5)O(4) (-), the 2-carb-oxy-benzoate anions are joined into a chain along [010] by strong O-H⋯O hydrogen bonds, with the H atoms disordered about the inter-vening centres of inversion. The presence of N-H⋯O hydrogen bonds between cations generates an additional chain along [010] and parallel to that of the anions. The chains are assembled into a three-dimensional framework via weak C-H⋯O inter-chain inter-actions. In the cation, thee dihedral angle between the pyridine rings is 48.91 (4)°.
在标题分子盐C(13)H(15)N(2) (+)·C(8)H(5)O(4) (-)中，2-羧基苯甲酸根阴离子通过强O-H⋯O氢键沿[010]方向连接成链，H原子在中间的反演中心处无序分布。阳离子之间存在N-H⋯O氢键，沿[010]方向生成了一条与阴离子链平行的附加链。这些链通过弱的C-H⋯O链间相互作用组装成三维骨架。在阳离子中，吡啶环之间的二面角为48.91 (4)°。
