title: (2E)-2-[2-(4-Chloro-phen-yl)hydrazin-1-yl-idene]-4,4,4-trifluoro-3-oxobutanal.
abstract: The title compound, C(10)H(6)ClF(3)N(2)O(2), was synthesized by coupling 4-dimethyl-amino-1,1,1-trifluoro-but-3-en-2-one with 4-chloro-benzene-diazo-nium chloride. It crystallizes with two mol-ecules in the asymmetric unit, which form two similar centrosymmetric dimers via hydrogen bonds. Extensive electron delocalization and intra-molecular N-H⋯O hydrogen bonds are responsible for a planar conformation of the mol-ecules (maximum deviations = 0.010 and -0.015 Å for the two molecules). In addition to hydrogen bonds, π-π stacking inter-actions with centroid-centroid distances of 3.604 (2) and 3.583 (2) Å contribute to the stability of the crystal structure.
authors: Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
authors: Yan-Ping
authors: YP
authors: Huo
authors: Li-Hua
authors: LH
authors: Zhou
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677