Single-crystal study of indolyl chalcone (E)-1-(4-bromophenyl)-3-(1-H-indol-3-yl)-prop-2-en-1-one is reported here. It has been synthesized by microwave assisted method from indole-3-carbaldehyde and 4-bromo acetophenone by Claisen-Schmidt reaction. IR,1H NMR and HRMS data is reported here. The crystalline structure of this compound is described within the sp. gr. I -4; its unit cell parameters are a = 23.9636(17)Å,b = 23.9636(17)Å,c = 5.1428(5)Å. Crystallographic study shows formation of hydrogen-bonded cyclic tetramer around a 2-fold axis and 4-fold roto-inversion axis through N1–H1···O1 interactions between the indolic NH group as a hydrogen-bond donor and the carbonyl O atom as a hydrogen-bond acceptor.

中文翻译：

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(E)-1-(4-溴苯基)-3-(1-H-indol-3-yl)-prop-2-en-1-one的固态结构和键合特征的研究

这里报道了吲哚基查尔酮 (E)-1-(4-溴苯基)-3-(1-H-indol-3-yl)-prop-2-en-1-one 的单晶研究。它是由吲哚-3-甲醛和4-溴苯乙酮通过Claisen-Schmidt 反应通过微波辅助合成的。此处报告了 IR、1H NMR 和 HRMS 数据。该化合物的晶体结构在 sp 中有描述。克。我-4; 其晶胞参数为 a = 23.9636(17)Å,b = 23.9636(17)Å,c = 5.1428(5)Å。晶体学研究表明，通过作为氢键供体的吲哚 NH 基团和作为氢键受体。