Dong Ying-Ying, Cao Xi-Chuan
School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu Province 221008, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2011 Sep 1;67(Pt 9):o2339. doi: 10.1107/S1600536811031965. Epub 2011 Aug 17.
The complete organic molecule in the title dihydrate, C(20)H(22)N(4)O(4), is generated by crystallographic twofold symmetry, with two C atoms lying on the rotation axis. The symmetry unique pyridine ring forms a dihedral angle of 83.16 (8)° with the central benzene ring. In the crystal, inter-molecular N-H⋯O, O-H⋯N and O-H⋯O hydrogen bonds connect the components into a two-dimensional network lying parallel to (101).
标题二水合物C(20)H(22)N(4)O(4)中的完整有机分子由晶体学二重对称产生,两个C原子位于旋转轴上。具有对称性的独特吡啶环与中心苯环形成83.16 (8)°的二面角。在晶体中,分子间的N-H⋯O、O-H⋯N和O-H⋯O氢键将各组分连接成一个平行于(101)的二维网络。