聚氧甲二甲协调复合物的可见光驱动"开启"/"关闭"光色学
Jingjing Xu1, Henrieta Volfova2, Roger J Mulder3
1School of Chemistry , The University of Melbourne , Melbourne , Victoria 3010 , Australia.
Journal of the American Chemical Society
|July 13, 2018
概括
我们开发了第一个基于多氧甲的光色复合物. 这种新型的分子子结构使用可见光在两个状态之间进行可逆切换,为新的光响应材料铺平了道路.
科学领域:
- 超分子化学
- 材料科学
- 摄影化学
背景情况:
- 多氧金属酸盐 (POM) 是具有可调节电子特性的多功能无机.
- 每日乙烯 (DAE) 是光色分子,因其在光照射时的可逆变色而闻名.
- 结合POM和DAE可以创造先进的光响应材料.
研究的目的:
- 合成和描述第一个基于多氧甲的光色二甲协调复合物.
- 调查新型复合体的自组,结构和光色特性.
- 评估POM-DAE组件的切换行为和光物理特性.
主要方法:
- 复杂合成的协调化学.
- 核磁共振 (NMR) 光谱 (1H,19F) 用于结构和组成分析.
- 质谱 (ESI-QTOF-MS) 用于分子重量测定.
- 紫外可见光谱 (UV-vis) 和小角度X射线散射 (SAXS) 用于结构和光物理研究.
- 定制设置用于量子产量测定和耐疲劳测试.
主要成果:
- 一种基于多氧甲酸盐的新型光色聚合物的成功合成.
- 复杂的自我组织成一个由静电和硬体因素驱动的分子杆结构.
- 复合体内的二甲单元表现出两种状态之间的光诱导切换.
- 获得了详细的光物理数据,包括量子效率和耐疲劳性.
结论:
- 首个光色POM-DAE协调复合物已成功合成和表征.
- 分子重架构对于观察到的光色行为至关重要.
- 该综合体展示了高效和可逆的光色切换,突出了其在分子电子和光学设备中的潜力.
- 这项工作扩大了具有光响应能力的功能性POM材料的范围.
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