异形发光协调聚合物的微结构调制,以实现传感效应转换
Jinfang Zhang1, Xingyu Tao1, Shuaixing Wang1
1International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China.
Inorganic chemistry
|April 7, 2025
概括
使用AIE配体L-1和L-2合成了两种新的协调聚合物,1和2. 它们分别表现出对酸离子 (MnO4-) 的明显"关闭"和"启动"传感能力.
科学领域:
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
- 化学传感器 化学传感器
背景情况:
- 开发用于选择性离子检测的新材料至关重要.
- 协调聚合物为传感应用提供可调节结构.
- 聚合诱发发射 (AIE) 功能性联体可以增强发光特性.
研究的目的:
- 设计和合成具有独特传感行为的同态协调聚合物.
- 为了研究支配酸离子 (MnO4-) 传感的结构-属性关系.
- 探索微观结构调制以改变传感效应.
主要方法:
- 合成了两种AIE功能连接体,L-1和L-2.
- 同型协调聚合物的构造 [Cu(L-1) 2 ((SCN) 2) ] (1) 和 [Cu ((L-2) 2 ((SCN) 2) ] (2) (2).
- 结晶结构,稳定性和发光性质的表征.
- 对酸离子 (MnO4-) 的传感性能的评估.
主要成果:
- 化合物1和2具有1D单链架构,并表现出良好的稳定性.
- 配体堆叠距离 (4.61 Å in 1, 5.38 Å in 2) 影响传感机制.
- 复合物1显示"关闭"的发光感应MnO4-.
- 复合物2展示了具有超高灵敏度的MnO4的"打开"发光传感器,标记了第一个这样的传感器.
结论:
- 通过连接体设计进行微结构调制,可以实现明显的传感转换.
- 开发的协调聚合物为选择性离子检测提供了有前途的平台.
- 化合物2代表了"启动"酸离子传感的重大进步.
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