Chang Hong, Yang You-Li, Wang Xiu-Guang, Yang En-Cui
College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecule, Tianjin Normal University, Tianjin 300387, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2010 Jun 23;66(Pt 7):o1738. doi: 10.1107/S1600536810023305.
Cocrystallization of benzimidazole with benzene 1,3,5-tricarb-oxy-lic acid in slightly basic medium afforded the title compound, C(7)H(7)N(2) (+)·C(9)H(5)O(6) (-)·3H(2)O, in which one of the imidazole N atom is protonated and one carb-oxy-lic group of aromatic acid is deprotonated. In the crystal structure, inter-molecular N-H⋯O hydrogen-bonding connects the two organic components into dimers, which are further linked into a three-dimensional network by O-H⋯O and N-H⋯O inter-actions between the water mol-ecules and the dimers.
在弱碱性介质中，苯并咪唑与苯-1,3,5-三羧酸共结晶得到标题化合物C₇H₇N₂⁺·C₉H₅O₆⁻·3H₂O，其中一个咪唑N原子被质子化，芳香酸的一个羧基去质子化。在晶体结构中，分子间N-H⋯O氢键将两个有机组分连接成二聚体，水分子与二聚体之间通过O-H⋯O和N-H⋯O相互作用进一步连接成三维网络。
