Du Chao-Jun, Shi Zheng-Hai, Wang Li-Sheng, Du Chao-Ling
Acta Crystallogr Sect E Struct Rep Online. 2011 Jul 1;67(Pt 7):o1837. doi: 10.1107/S1600536811024767. Epub 2011 Jun 30.
In the title compound, C(8)H(10)N(2)O(4)·H(2)O, the imidazole N atom is protonated and one of the carboxyl-ate groups is deprotoned, forming a zwitterion. An intra-molecular O-H⋯O hydrogen bond occurs. The crystal structure is stabilized by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds. In addition, inter-molecular N-H⋯O and O-H⋯O hydrogen bonds link the mol-ecules into two-dimensional networks parallel to (10[Formula: see text]).
在标题化合物C₈H₁₀N₂O₄·H₂O中，咪唑N原子被质子化，一个羧酸根去质子化，形成一个两性离子。存在分子内O—H⋯O氢键。晶体结构通过分子间N—H⋯O和O—H⋯O氢键得以稳定。此外，分子间N—H⋯O和O—H⋯O氢键将分子连接成平行于(10[化学式：见原文])的二维网络。
