Su Hong, Lv Yao-Kang, Feng Yun-Long
Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, Zhejiang 321004, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2009 Mar 31;65(Pt 4):o933. doi: 10.1107/S1600536809011143.
In the title compound, 2C(3)H(7)N(6) (+)·C(4)H(4)O(6) (2-)·2H(2)O, in which the complete anion is generated by crystallographic twofold symmetry, there are O-H⋯O, N-H⋯O and N-H⋯N hydrogen-bonding inter-actions between neighbouring moieties, forming layers parallel to the bc plane. In addition, π-π contacts [centroid-centroid distance = 3.6541 (9) Å] between the six-membered rings of the melamine cations are observed.
在标题化合物2C₃H₇N₆⁺·C₄H₄O₆²⁻·2H₂O中，其中完整的阴离子由晶体学二重对称性产生，相邻部分之间存在O—H⋯O、N—H⋯O和N—H⋯N氢键相互作用，形成平行于bc平面的层。此外，观察到三聚氰胺阳离子六元环之间的π-π接触[质心-质心距离 = 3.6541 (9) Å]。
