Golovnia Ekaterina, Prisyazhnaya Elena V, Iskenderov Turganbay S, Haukka Matti, Fritsky Igor O
Acta Crystallogr Sect E Struct Rep Online. 2009 Jul 29;65(Pt 8):o2018-9. doi: 10.1107/S1600536809029298.
The mol-ecule of the title compound, C(14)H(12)N(2)O(4), lies across a crystallographic inversion centre situated at the mid-point of the C-C intra-annular bond. The mol-ecule is not planar, the dihedral angle between the aromatic rings being 50.1 (1)°. The oxime group is in an E position with respect to the -OH group and forms an intra-molecular O-H⋯N hydrogen bond. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link mol-ecules into chains propagating along [001]. The crystal structure is further stabilized by inter-molecular stacking inter-actions between the rings [centroid-to-centroid distance = 3.93 (1) Å], resulting in layers parallel to the bc plane.
标题化合物C(14)H(12)N(2)O(4)的分子位于一个位于环内C-C键中点的晶体学反演中心上。该分子不是平面的，芳香环之间的二面角为50.1 (1)°。肟基相对于-OH基团处于E位，并形成分子内O-H⋯N氢键。在晶体结构中，分子间O-H⋯O氢键将分子连接成沿[001]方向延伸的链。晶体结构通过环之间的分子间堆积相互作用[质心到质心距离 = 3.93 (1) Å]进一步稳定，形成平行于bc平面的层。
