Fun Hoong-Kun, Chantrapromma Suchada, Patil P S, Dharmaprakash S M
Acta Crystallogr Sect E Struct Rep Online. 2008 May 3;64(Pt 6):o958-9. doi: 10.1107/S160053680801218X.
In the title compound, C(15)H(10)ClNO(3), a substituted chalcone, the 2-chloro-phenyl and 4-nitro-phenyl rings make a dihedral angle of 26.48 (6)°. The nitro group makes a dihedral angle of 11.64 (7)° with the plane of the benzene ring to which it is bound. Weak intra-molecular C-H⋯O and C-H⋯Cl inter-actions involving the enone groups generate S(5) ring motifs, which help to stabilize the planarity of the 3-(2-chloro-phen-yl)prop-2-en-1-one segment of the mol-ecule. In the crystal structure, adjacent mol-ecules are stacked in a head-to-tail fashion into columns along the a axis by π-π inter-actions [centroid-centroid distance = 3.6955 (8) Å]. Neighbouring columns are linked by weak C-H⋯O inter-actions.
在标题化合物C₁₅H₁₀ClNO₃（一种取代查尔酮）中，2-氯苯基和4-硝基苯基环之间的二面角为26.48（6）°。硝基与其相连的苯环平面之间的二面角为11.64（7）°。涉及烯酮基团的弱分子内C-H⋯O和C-H⋯Cl相互作用产生S（5）环基序，这有助于稳定分子中3-（2-氯苯基）丙-2-烯-1-酮片段的平面性。在晶体结构中，相邻分子通过π-π相互作用[质心-质心距离 = 3.6955（8）Å]以头对尾的方式沿a轴堆叠成列。相邻列通过弱C-H⋯O相互作用相连。
