Tahir M Nawaz, Ali Akbar, Umar M Naveed, Hussain Ishtiaq, Shad Hazoor Ahmad
Acta Crystallogr Sect E Struct Rep Online. 2012 Jul 1;68(Pt 7):o2071. doi: 10.1107/S1600536812025299. Epub 2012 Jun 13.
In the title compound, C(9)H(11)N(3)O(3), two mol-ecules are present in the asymmetric unit in which the 4-hy-droxy-3-meth-oxy-benzaldehyde and hydrazinecarboxamide units are almost planar [with r.m.s. deviations 0.0212 and 0.0066 Å, respectively, in one mol-ecule and 0.0346 and 0.0095 Å, respectively, in the other] and are oriented at dihedral angles of 9.7 (3) and 16.6 (3)°. In both mol-ecules, two S(5) ring motifs are present due to N-H⋯N and O-H⋯O hydrogen bonds. In the crystal, the mol-ecules are dimerized with each other due to pairs of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif. O-H⋯O hydrogen bonds lead to the formation of a three-dimensional network.
在标题化合物C₉H₁₁N₃O₃中，不对称单元中有两个分子，其中4-羟基-3-甲氧基苯甲醛和肼甲酰胺单元几乎是平面的[在一个分子中，均方根偏差分别为0.0212和0.0066 Å，在另一个分子中分别为0.0346和0.0095 Å]，且二者以9.7(3)°和16.6(3)°的二面角取向。在两个分子中，由于N-H⋯N和O-H⋯O氢键，均存在两个S(5)环 motif。在晶体中，分子通过成对的N-H⋯O氢键彼此二聚化，形成R₂²(8)环 motif。O-H⋯O氢键导致形成三维网络。
