基于二复合物的协调纳米片:作为光活性宿主材料
Takamasa Tsukamoto1,2, Kenji Takada1, Ryota Sakamoto1,3
1Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Journal of the American Chemical Society
|March 22, 2017
概括
使用特皮里丁配体和离子的新光发光协调纳米片 (CONASH) 具有多样化的结构和可调节的光功能. 由于其独特的光学特性和离子交换能力,这些材料具有先进应用的潜力.
科学领域:
- 材料科学
- 超分子化学
- 摄影化学
背景情况:
- 光发光协调纳米片 (CONASH) 通过连接体设计和协调提供可调节的特性.
- 胺 (tpy) 配体和 (II) 离子是构建功能纳米材料的关键组成部分.
研究的目的:
- 合成和描述具有不同结构和光功能的多种tpy-zinc
- 研究连接体结构和对抗离子对CONASH光物理性能的影响.
- 探索CONASH在离子交换和激子迁移等应用中的潜力.
主要方法:
- 通过和盐之间的液体/液体界面反应合成CONASH.
- 使用敏感于协调模式和离子相互作用的技术进行结构性表征.
- 光物理测量,包括发光光谱和溶色学研究.
主要成果:
- 合成了两种不同的tpy-zinc(II) CONASH:一种带有bis ((tpy) Zn动图的阴离子1-Zn,一种带有[Zn2 ((μ-O2SO2) 2 ((tpy) 2)) 动图的中性1-Zn2 ((SO4) 2 .
- 1-Zn的发光颜色从蓝色 (480 nm) 到黄色 (552 nm) 的1-Zn2 ((SO4) 2变化,后者表现出溶解色.
- 对tpy连接体 (连接体2) 的修改导致2-Zn的红移 emission (590 nm).
- 阴离子CONASHs (1-Zn和2-Zn) 证明了离子交换能力,成功地结合了离子色素染料并促进了激子迁移.
结论:
- 通过改变连接体设计和协调离子的性质,tpy-zinc(II) CONASH 的结构和光功能具有高度调节性.
- 这些CONASH表现出有前途的光物理特性,包括可变发光和溶色.
- 证明的离子交换和激子迁移能力突显了tpy-zinc(II) CONASHs作为多功能光学纳米材料的潜力.
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