在以尿素为基础的同结构协调聚合物中通过强大的和重复的含溶剂的超分子相互作用来控制伪多态性
Ghazale Khorshidi1, Behrouz Notash1
1Department of Inorganic Chemistry, Shahid Beheshti University, 1983969411, Tehran, Iran. b_notash@sbu.ac.ir.
Dalton transactions (Cambridge, England : 2003)
|January 27, 2025
概括
这项研究合成了六种伪多聚合态协调聚合物,使用了二极管联结体和d10金属. 这些化合物表现出强大的3D同结构性,溶剂分子通过键稳定它们的超分子结构起着关键作用.
科学领域:
- 协调化学 协调化学
- 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:
- 协调聚合物提供基于金属离子和有机配体的调节性质.
- 伪多重形态,由溶剂含有引起,显著影响晶体结构.
- 了解分子间相互作用对于设计功能材料至关重要.
研究的目的:
- 合成和描述新的伪多重形协调聚合物.
- 研究这些化合物的结构特征和同结构性.
- 分析结和溶剂分子在晶体包装中的作用.
主要方法:
- 合成6种配合聚合物,其中含有10个金属 (Zn,Cd,Hg) 和1,3-di(pyridin-4-yl) urea (4bpu) 配合物.
- 使用单晶X射线衍射 (SC-XRD),元素分析,FT-IR,TGA和PXRD进行表征.
- 使用XPac 2.0.2软件分析异构结构性,不相似度指数和拉伸参数.
主要成果:
- 获得了六种异构的1D齐克扎克链协调聚合物,具有不同的溶剂分子 (MeOH或EtOH).
- 确认了强大的3D异构性,并分析了齐克扎克链中的几何变化.
- 确定了键 (N-HO,O-HI,C-HI) 和尿素-C=Oπpy相互作用,稳定了超分子组合.
结论:
- 溶剂分子对于控制伪多态和指导晶体组装至关重要.
- 该研究提供了对协调聚合物的结构相似性和分子间相互作用的定量见解.
- 这些发现有助于通过控制结合来设计具有量身定制功能的材料.
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