Du Guihuan, Liu Zuli, Chu Qian, Li Zhen, Zhang Suming
Acta Crystallogr Sect E Struct Rep Online. 2008 Sep 17;64(Pt 10):o1947-8. doi: 10.1107/S1600536808029115.
Co-crystallization of 4,4'-methyl-enediphenyl-amine (MDA) and 5-sulfosalicylic acid (5-H(2)SSA) yields the title salt, C(13)H(16)N(2) (2+)·2C(7)H(5)O(6)S(-)·H(2)O. The asymmetric unit is comprised of one dication, two anions and one water mol-ecule. In the crystal structure, the components of the salt are linked by a combination of inter-molecular O-H⋯O, N-H⋯O and weak C-H⋯O hydrogen bonds into a three-dimensional framework. In addition, two weak π-π inter-actions [with centroid-centroid distances of 3.8734 (15) and 3.7465 (15) Å] and one C-H⋯π inter-action further stabilize the crystal structure.
4,4'-亚甲基二苯胺（MDA）与5-磺基水杨酸（5-H₂SSA）共结晶得到标题盐C₁₃H₁₆N₂²⁺·2C₇H₅O₆S⁻·H₂O。不对称单元由一个二价阳离子、两个阴离子和一个水分子组成。在晶体结构中，盐的组分通过分子间O-H⋯O、N-H⋯O和弱C-H⋯O氢键的组合连接成三维框架。此外，两个弱π-π相互作用[质心-质心距离分别为3.8734 (15) 和3.7465 (15) Å]和一个C-H⋯π相互作用进一步稳定了晶体结构。
