Raissi Shabari Akbar, Safaeimovahed Maryam, Pourayoubi Mehrdad
Acta Crystallogr Sect E Struct Rep Online. 2010 Feb 6;66(Pt 3):o551. doi: 10.1107/S1600536810004150.
The title hydrated salt, 2C(5)H(8)N(3) (+)·C(8)H(5)O(4) (-)·NO(3) (-)·H(2)O, was obtained fortuitously from the reaction between 2,6-diamino-pyridine, phthalic acid and Co(NO(3))(2)·6H(2)O at 343 K. The asymmetric unit consists of two crystallographically independent 2,6-diamino-pyridinium cations, a hydrogen phthalate anion, a nitrate ion and a water mol-ecule of crystallization which in the crystal structure are linked by inter-molecular O-H⋯O and N-H⋯O hydrogen bonds into a three-dimensional network. In the hydrogen phthalate anion, there is a very strong intra-molecular O-H⋯O hydrogen bond.
水合盐2C(5)H(8)N(3) (+)·C(8)H(5)O(4) (-)·NO(3) (-)·H(2)O是在343 K下2,6-二氨基吡啶、邻苯二甲酸和Co(NO(3))(2)·6H(2)O之间的反应中偶然得到的。不对称单元由两个晶体学独立的2,6-二氨基吡啶鎓阳离子、一个邻苯二甲酸氢根阴离子、一个硝酸根离子和一个结晶水分子组成，它们在晶体结构中通过分子间O-H⋯O和N-H⋯O氢键连接成三维网络。在邻苯二甲酸氢根阴离子中，存在一个非常强的分子内O-H⋯O氢键。
