Gowda B Thimme, Foro Sabine, Suchetan P A, Fuess Hartmut, Terao Hiromitsu
Acta Crystallogr Sect E Struct Rep Online. 2009 Jul 25;65(Pt 8):o1998. doi: 10.1107/S1600536809028918.
The conformation of the N-H bond in the structure of the title compound, C(8)H(7)BrClNO, is syn to the 2-chloro substituent in the aniline ring and anti to both the C=O and C-Br bonds in the side chain, similar to that observed in 2-chloro-N-(2-chloro-phen-yl)acetamide. In the crystal, mol-ecules are linked into chains along the a axis by N-H⋯O hydrogen bonds. These chains are in turn linked into pairs, in the form of columns, through much weaker C-H⋯Cl and Br⋯Br [4.3027 (3) Å] inter-actions.
标题化合物C(8)H(7)BrClNO结构中N - H键的构象与苯胺环上的2 - 氯取代基呈顺式,与侧链中的C=O和C - Br键均呈反式,这与在2 - 氯 - N - (2 - 氯 - 苯基)乙酰胺中观察到的情况类似。在晶体中,分子通过N - H⋯O氢键沿a轴连接成链。这些链又通过弱得多的C - H⋯Cl和Br⋯Br [4.3027 (3) Å]相互作用成对连接成柱状。