Guo Yun, Wang Cong, Chen Hai-Xiang
Acta Crystallogr Sect E Struct Rep Online. 2010 Aug 18;66(Pt 9):o2328. doi: 10.1107/S1600536810030746.
In the title molecular compound, C(4)H(12)NO(+)·C(8)H(5)O(4) (-), the N,N-dieth-yl(hy-droxy)ammonium cation (DTHA) is linked to the 3-carb-oxy-benzoate anion (HBDL) by O-H⋯O and N-H⋯O hydrogen bonds with a graph-set motif R(2) (2)(7). In the crystal, helical chains are formed by O-H⋯O hydrogen bonds, propagating along [010]. The crystal structure is further stabilized by π-π inter-actions between inversion-related HBDL benzene rings [centroid-centroid distance = 3.900 (4) Å] and C-H⋯O inter-actions.
在标题分子化合物C₄H₁₂NO⁺·C₈H₅O₄⁻中，N,N - 二乙基（羟基）铵阳离子（DTHA）通过O - H⋯O和N - H⋯O氢键与3 - 羧基苯甲酸根阴离子（HBDL）相连，形成具有R₂²(7)图式的氢键模式。在晶体中，通过O - H⋯O氢键形成螺旋链，沿[010]方向延伸。晶体结构通过反演相关的HBDL苯环之间的π - π相互作用[质心 - 质心距离 = 3.900 (4) Å]和C - H⋯O相互作用进一步稳定。
