加力克朗的网络:从异质核内/外循环协调聚合物到光发光开关
Jai Young Lee1, Hyun Jee Kim, Jong Hwa Jung
1Department of Chemistry (BK21) and Research Institute of Natural Science, Gyeongsang National University, Jinju 660-701, South Korea.
Journal of the American Chemical Society
|September 27, 2008
概括
研究人员使用一个calix[4]-bis-monothiacrown连接体开发了新的铜(I) 协调聚合物. 这些材料在含有离子时表现出可逆光发光切换和独特的结构变化.
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:
- 卡利克斯[4]-bis-monothiacrown联体因其宿主-客房属性而闻名.
- 铜 ((I) 协调聚合物提供了多样化的结构图案和功能.
- 在协调材料中的光发光 (PL) 切换是积极研究的一个领域.
研究的目的:
- 为了合成和表征一种新的铜 (I) 协调聚合物,使用一个calix[4]-bis-monothiacrown连接体.
- 为了研究这些材料的光发光的切换行为.
- 探索由溶剂去除和离子纳入引起的结构转变.
主要方法:
- 单晶X射线衍射用于结构确定.
- 发光光谱学用于研究光发光特性.
- 用于solvato-chromic研究的溶剂蒸汽扩散技术.
主要成果:
- 获得了两个不同的CuI协调聚合物结构 (1和2),展示了不寻常的网络安排.
- 观察到可逆光发光切换,由协调的溶剂分子的去除引发.
- 包括离子 (K+) 诱导了皇冠环的缩小和calixarene宿主中的芳香环的开放.
结论:
- 该研究提出了具有独特结构特征和动态行为的新型CuI协调聚合物.
- 观察到的可逆光发光转换突显了这些材料在传感应用中的潜力.
- 由K+引起的结构转变表明,在基于卡利沙的系统中,宿主与客人的相互作用是罕见的.
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