Wei Xiao-Hong, Yan Hong, Lin Wei-Gong
College of Mechanical and Materials Engineering, China Three Gorges University, Yichang 443002, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2012 Sep 1;68(Pt 9):o2749. doi: 10.1107/S1600536812035854. Epub 2012 Aug 23.
The title compound, C(12)H(10)N(2)O(2)·H(2)O, crystallizes as a zwitterion in which the pyridine N atom is protonated and the carb-oxy -OH group is deprotonated. The benzene and pyridinium rings are inclined with a dihedral angle of 6.63 (5)° between them. In the crystal, inter-molecular O-H⋯O and N-H⋯O hydrogen-bonding inter-actions link adjacent mol-ecules into a two-dimensional double layered supra-molecular network.
标题化合物C(12)H(10)N(2)O(2)·H(2)O以两性离子形式结晶,其中吡啶N原子质子化,羧基-OH基团去质子化。苯环和吡啶鎓环之间的二面角为6.63 (5)°。在晶体中,分子间的O-H⋯O和N-H⋯O氢键相互作用将相邻分子连接成二维双层超分子网络。