标题化合物,C15H14N2O3在不对称单元中与两个独立的摩尔分子(A和B)结晶,这两个分子在3-甲氧基苯基相对于甲烯二酰肼单元的取向上不同。两个苯环之间的二面角分别为24.02(10)和29.30(9)°,分别。在mol-eculeA中,甲氧基相对于其结合的苯环略微扭曲,甲基-O-C-C扭转角为14.2(3)°,而它在摩尔单元B中几乎是共面的,其中相应的角度为-2.4(3)°。在水晶里,摩尔分子通过N-H-O连接,O-H-N和O-H-O氢键,以及弱的C-H-O相互作用,形成平行于BC平面的板材。N-H-O氢键和弱的C-H-O相互作用连接不同的摩尔单元(A-B),而O-H-N和O-H-O氢键连接像摩尔单元(A-A)和(B-B)。与反转相关的Bmol-ecule对通过π-π相互作用大致沿a轴堆叠,其中3-甲氧基苯环的质心之间的距离为3.5388(12)。B摩尔分子还参与4-羟基-苯基和3-甲氧基-苯环之间的弱C-Hπ相互作用。
The title compound, C15H14N2O3, crystallizes with two independent mol-ecules (A and B) in the asymmetric unit that differ in the orientation of the 3-meth-oxy-phenyl group with respect to the methyl-idenebenzohydrazide unit. The dihedral angles between the two benzene rings are 24.02 (10) and 29.30 (9)° in mol-ecules A and B, respectively. In mol-ecule A, the meth-oxy group is twisted slightly relative to its bound benzene ring, with a Cmeth-yl-O-C-C torsion angle of 14.2 (3)°, whereas it is almost co-planar in mol-ecule B, where the corresponding angle is -2.4 (3)°. In the crystal, the mol-ecules are linked by N-H⋯O, O-H⋯N and O-H⋯O hydrogen bonds, as well as by weak C-H⋯O inter-actions, forming sheets parallel to the bc plane. The N-H⋯O hydrogen bond and weak C-H⋯O inter-action link different mol-ecules (A⋯B) whereas both O-H⋯N and O-H⋯O hydrogen bonds link like mol-ecules (A⋯A) and (B⋯B). Pairs of inversion-related B mol-ecules are stacked approximately along the a axis by π-π inter-actions in which the distance between the centroids of the 3-meth-oxy-phenyl rings is 3.5388 (12) Å. The B mol-ecules also participate in weak C-H⋯π inter-actions between the 4-hy-droxy-phenyl and the 3-meth-oxy-phenyl rings.