通过碳氧化联体调节二olefin 协调聚合物的晶体结构和固态光电活性
Qiaoqiao Zhang1,2, Yong Wang1, Yu Ge1
1College of Chemistry, Chemical Engineering and Materials, Soochow University, Suzhou 215123, P. R. China.
Inorganic chemistry
|November 8, 2023
概括
研究人员使用二olefin 连接体和Cd (II) 组装了六种olefinic 协调聚合物 (CP). 四个CP对 [2+2] 循环添加表现出光反应活性,其中一个在二元化过程中经历相变.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 摄影化学的使用.
背景情况:
- 氨基协调聚合物 (CPs) 由于氨基分子的结构和光化学潜力而引起人们的兴趣.
- 通过连接体设计调整CP结构和特性的能力对于开发新的功能材料至关重要.
研究的目的:
- 通过使用特定的二olefin 连接物 (OCH3-bpeb) 和Cd(II) 合成和表征新型的烯协调聚合物 (CPs).
- 调查碳酸盐连接体对结晶结构和由此产生的CP的光反应性的影响.
- 探索这些CP的 [2+2] 循环添加反应,并分析任何结构转换.
主要方法:
- 六种结晶协调聚合物的合成 (CPs 1-6) 使用Cd(II) 和OCH3-bpeb配体与各种碳酸.
- 使用单晶X射线衍射进行结构性表征.
- 使用质子核磁共振 (1H NMR) 和在可见光照射下单晶X射线衍射的光化学反应性研究.
主要成果:
- 不同的晶体架构是通过不同的碳酸盐连接体,包括1D和3D结构来实现的.
- 四个CP (1,2,5,和6) 通过 [2+2] 循环添加证明了光反应性.
- CPs 2 和 5 经历了单晶对单晶二元化.
- 在光环添加过程中,CP 5表现出罕见的相位过渡与对称性增强 (P1̅到P2/n).
结论:
- 碳酸盐连接体有效地控制了烯酸CPs的晶体结构和光环添加行为.
- 观测到的光反应和相变突出显示了这些材料对光诱导转变的潜力.
- 这项研究为设计具有定制性质的功能性氨酸含有复合物的设计提供了宝贵的见解.
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