Dai Chuntao, Nie Jianhua, Lin Yuehua, Wang Jun
Zhongshan Polytechnic, Zhongshan, Guangdong 528404, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2012 Aug 1;68(Pt 8):o2600. doi: 10.1107/S1600536812033557. Epub 2012 Jul 28.
In the title salt, C(2)H(8)N(+)·C(10)H(6)N(3)O(5) (-), the imidazole-carboxyl-ate anion is essentially planar [maximum deviation from the least-squares plane = 0.046 (5) Å], with a dihedral angle between the rings of 2.7 (2)°. This conformation is maintained by the presence of both intra-molecular carb-oxy-carboxyl-ate O-H⋯O and imidazole-oxide N-H⋯O hydrogen bonds. Iin the crystal, cation-carboxyl-ate N-H⋯O and cation-imidazole N-H⋯N hydrogen bonds result in chains along the b axis.
在标题盐C(2)H(8)N(+)·C(10)H(6)N(3)O(5) (-)中，咪唑羧酸根阴离子基本呈平面状[与最小二乘平面的最大偏差 = 0.046 (5) Å]，环之间的二面角为2.7 (2)°。这种构象通过分子内羧基 - 羧酸盐O - H⋯O和咪唑氧化物N - H⋯O氢键得以维持。在晶体中，阳离子 - 羧酸盐N - H⋯O和阳离子 - 咪唑N - H⋯N氢键导致沿b轴形成链状结构。
