由阿克里丁和氧甲的两个异构体组成的共晶体的结构多样性:3-氧甲和4-氧甲
Patryk Nowak1, Artur Sikorski1
1Faculty of Chemistry, University of Gdansk W. Stwosza 63 80-308 Gdansk Poland artur.sikorski@ug.edu.pl.
RSC advances
|July 6, 2023
概括
这项研究用3和4基甲合成和特征化了阿克里丁的共晶体. 共同晶体表现出不同的晶体结构和分子间相互作用,影响它们的点和振动光谱.
科学领域:
- 晶体学 晶体学是指结晶学.
- 超分子化学 超分子化学
- 材料科学 材料科学 材料科学
背景情况:
- 共同晶体是由两种或多种不同分子组成的结晶固体,在定义的石化比率中.
- 阿克里丁和基甲衍生物是有机化合物,在各种领域都有潜在的应用.
- 了解共晶的形成和特性对于设计具有量身定制特性的新材料至关重要.
研究的目的:
- 为了合成和结构性地表征与3-基甲和4-基甲的阿克里丁的共晶.
- 研究控制晶体结构的分子间相互作用.
- 研究合成的共晶体的热特性和振动光谱.
主要方法:
- 单晶X射线衍射用于结构确定.
- 不同扫描热量测量 (DSC) 和热重力测量分析 (TGA) 用于热分析.
- 福利埃转换红外光谱 (FTIR) 用于振动分析.
主要成果:
- 与3-基甲 (化合物1) 和4-基甲 (化合物2) 合成的阿克里丁的晶成功合成.
- 化合物1在三临床P1̄空间组中结晶,而化合物2在单临床P21/n空间组中结晶.
- 确定了分子间相互作用,包括键 (O-HN,C-HO) 和π-π堆叠.
- 化合物1的点低于其共同成型物,而化合物2的化行为发生了变化.
- FTIR光谱表明基基的拉伸振动消失,并在3000-2000厘米-1区域出现了新的波段.
结论:
- 阿克里丁-基甲共晶的形成受到基甲的特定异构体的影响.
- 分子间相互作用在决定晶体包装和性质方面发挥着重要作用.
- 同结晶可以改变单个组件的热和光谱特性.
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