Fun Hoong-Kun, Chia Tze Shyang, Alafeefy Ahmed M, Abdel-Aziz Hatem A
Acta Crystallogr Sect E Struct Rep Online. 2012 Jul 1;68(Pt 7):o2260-1. doi: 10.1107/S1600536812028735. Epub 2012 Jun 30.
In the title compound, C(16)H(14)N(2)O(4), the dihedral angle between the aromatic rings is 12.45 (6)°. The central C(=O)-N-N=C bridge is roughly planar (r.m.s. deviation = 0.0346 Å) and makes dihedral angles of 13.01 (7) and 0.56 (7)° with the attached phenyl and benzene rings, respectively. The acetic acid unit (r.m.s. deviation = 0.0066 Å) is twisted from its attached benzene ring [dihedral angle = 19.48 (6)°]. In the crystal, mol-ecules are linked by O-H⋯(O,N), N-H⋯O and C-H⋯O hydrogen bonds into sheets lying parallel to the bc plane. A weak aromatic π-π stacking inter-action is also observed [centroid-centroid distance = 3.7330 (7) Å].
在标题化合物C₁₆H₁₄N₂O₄中，芳环之间的二面角为12.45 (6)°。中心的C(=O)-N-N=C桥大致呈平面状（均方根偏差 = 0.0346 Å），与相连的苯环和苯环分别形成13.01 (7)°和0.56 (7)°的二面角。乙酸单元（均方根偏差 = 0.0066 Å）相对于其相连的苯环发生扭曲[二面角 = 19.48 (6)°]。在晶体中，分子通过O-H⋯(O,N)、N-H⋯O和C-H⋯O氢键连接成平行于bc平面的片层。还观察到一种弱的芳香π-π堆积相互作用[质心-质心距离 = 3.7330 (7) Å]。
