双基Hg(II) 螺旋拓的1D协调聚合物:稳定性,选择性吸附和1D到2D维度变化通过SC到SC转换
Alessandro Sayed1, Massimo Cametti1
1Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131, Milano, Italy.
Chemistry (Weinheim an der Bergstrasse, Germany)
|May 13, 2024
概括
两种基于双的 ((II) 协调聚合物表现出不同的溶剂吸附和结构转化特性. 一个选择性地从VOC混合物中吸附甲醇,而另一个则经历了尺寸变化.
科学领域:
- 协调聚合物的聚合物
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
背景情况:
- 合成了具有螺旋形拓的双基 (II) 协调聚合物 (CPs).
- CP-MeOH和CP-EtOH几乎是同结构的,主要在晶格溶剂和单元细胞参数上有所不同.
研究的目的:
- 为了研究两个相关的基于双素的Hg(II) 协调聚合物的差异稳定性,溶剂吸附能力和结构转化.
- 探索从挥发性有机化合物 (VOC) 混合物中选择性溶剂吸附.
主要方法:
- 合成基于双素的Hg(II) 协调聚合物.
- 在环境条件下进行溶剂吸附实验.
- 在现场单晶X射线衍射 (SC-XRD) 用于监测结构变化.
主要成果:
- 一种协调聚合物在25°C和疏散后1 atm时,从二元和三元VOC混合物 (MeOH,CHCl3,EtOH) 中选择性地吸附甲醇.
- 另一种协调聚合物没有选择性吸附,而是经历了1D到2D的结构转换.
- 在现场使用单晶X射线衍射 (SC-XRD) 通过单晶到单晶 (SC-to-SC) 过程监测结构变化.
结论:
- 基于双素的Hg(II) 协调聚合物,尽管结构相似,但具有显著不同的功能性质.
- 选择性溶剂吸附和刺激反应的结构转变是这些材料的关键特征.
- 这些发现突显了定制协调聚合物的潜力,用于分离和响应材料的应用.
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