Zhang Xin, Huang Meng, Du Cong, Chen Dan
College of Chemistry and Life Science, Tianjin Normal University, Tianjin 300387, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2009 Jul 22;65(Pt 8):o1951-2. doi: 10.1107/S1600536809027858.
The title compound, C(20)H(18)ClN(3)O(3), is in an enamine-keto form, stabilized by two strong intra-molecular N-H⋯O hydrogen bonds. The pyrazole ring is oriented at dihedral angles of 4.13 (3) and 85.60 (3)° with respect to the aromatic rings. The dihedral angle between the aromatic rings is 81.79 (3)°. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into double chains, which are further linked by weak C-H⋯π inter-actions, forming a two-dimensional network.
标题化合物C(20)H(18)ClN(3)O(3)呈烯胺-酮形式,通过两个强分子内N-H⋯O氢键得以稳定。吡唑环相对于芳环的二面角分别为4.13 (3)°和85.60 (3)°。芳环之间的二面角为81.79 (3)°。在晶体结构中,分子间C-H⋯O氢键将分子连接成双链,双链通过弱C-H⋯π相互作用进一步连接,形成二维网络。