Kargar Hadi, Kia Reza, Tahir Muhammad Nawaz
Acta Crystallogr Sect E Struct Rep Online. 2012 Jul 1;68(Pt 7):o2118-9. doi: 10.1107/S1600536812025974. Epub 2012 Jun 16.
In the title hydrazide Schiff base compound, C(14)H(12)ClN(3)O(2), the conformation around the C=N double bond is E. The dihedral angle between the benzene rings is 41.57 (14) Å. An intra-molecular O-H⋯N hydrogen bond makes an S(6) ring motif. In the crystal, mol-ecules are linked by N-H⋯O (bifurcated acceptor) and N-H⋯N hydrogen bonds, forming chains along the a axis. The inter-esting feature of the crystal structure is the short inter-molecular C⋯O [3.216 (3), 3.170 (3), and 2.992 (3) Å] contacts, one of which is significantly shorter than the sum of the van der Waals radii of these atoms [3.22 Å].
在标题酰肼席夫碱化合物C(14)H(12)ClN(3)O(2)中,C=N双键周围的构象为E型。苯环之间的二面角为41.57 (14) Å。分子内O-H⋯N氢键形成一个S(6)环模式。在晶体中,分子通过N-H⋯O(分叉受体)和N-H⋯N氢键相连,沿a轴形成链状结构。该晶体结构的有趣特征是分子间C⋯O [3.216 (3)、3.170 (3)和2.992 (3) Å]接触较短,其中一个明显短于这些原子范德华半径之和[3.22 Å]。