Li Hao-Yuan, Liu Bo-Nian, Tang Shi-Gui, Guo Cheng
Acta Crystallogr Sect E Struct Rep Online. 2008 Dec 10;65(Pt 1):o91. doi: 10.1107/S1600536808041329.
In the title compound, C(15)H(14)N(2)O(4), the aromatic rings are oriented at a dihedral angle of 78.33 (3)°. An intra-molecular N-H⋯O hydrogen bond results in a non-planar six-membered ring with a flattened-boat conformation. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules. π-π contacts between the phenyl rings and both the phenyl and benzene rings, [centroid-centroid distances = 3.841 (3) and 3.961 (3) Å] may further stabilize the structure.
在标题化合物C₁₅H₁₄N₂O₄中，芳环以78.33 (3)°的二面角取向。分子内的N-H⋯O氢键导致形成一个具有扁平船式构象的非平面六元环。在晶体结构中，分子间的N-H⋯O氢键连接着分子。苯环与苯基环和苯环之间的π-π接触[质心-质心距离 = 3.841 (3) 和3.961 (3) Å]可能进一步稳定该结构。
