Diverse supramolecular arrangement of substituted oxopyrrolidine analogues influenced by weak intermolecular interactions (CH⋯O/CH⋯π/H⋯H)
作者:Marivel Samipillai、Nilay Bhatt、Hendrik G. Kruger、Thavendran Govender、Tricia Naicker
DOI:10.1016/j.molstruc.2016.05.042
日期:2016.10
analogues. The weak interactions such as C H⋯O/C H⋯π present in the crystal structure of all these analogues (1–3) played a vital role in controlling the conformation of the molecules and construction of dissimilar supramolecular assemblies. This study provides some insight; that even though these oxopyrrolidine analogues, lack a hydrogen bond donor and acceptor system, that upon bulky substitutions, this scaffold
摘要 3-氧代吡咯烷的三种类似物;(S)-1-叔丁基 2-乙基-2-((S)-2-nitro-1-p-tolylethyl)-3-oxopyrrolidine-1,2-dicarboxylate, 1, (S)-1-tert -丁基2-乙基2-((S)-1-(4-甲氧基苯基)-2-硝基乙基)-3-氧代吡咯烷-1,2-二羧酸酯2,和乙基1-((S)-2-(((合成苄氧基)羰基)氨基)-3-苯基丙酰基)-2-(2-硝基-1-苯基乙基)-3-氧代吡咯烷-2-羧酸酯3并在合适的溶剂中结晶。通过单晶 X 射线衍射进行晶体结构分析,以提供对这些类似物的堆积和超分子排列的详细研究。所有这些类似物(1-3)的晶体结构中存在的弱相互作用如 CH⋯O/CH⋯π 在控制分子构象和不同超分子组装体的构建方面起着至关重要的作用。这项研究提供了一些见解;即使这些氧代吡咯烷类似物缺乏氢键供体和受体系统,在大量取代后,这