具有C功能的,在空气和水中稳定的9,10-二-9,10-二boraanthracenes:高效的蓝色到红色发光光体
Christian Reus1, Sabine Weidlich, Michael Bolte
1Institut für Anorganische und Analytische Chemie, J. W. Goethe-Universität Frankfurt, Max-von-Laue-Strasse 7, D-60438 Frankfurt (Main), Germany.
Journal of the American Chemical Society
|August 1, 2013
概括
合成了基于9,10-二-9,10-二boraanthracene (DBA) 支架的添加有机光体. 这些新的DBA衍生品在可见光谱中显示可调节的发射,从蓝色到红色,具有增强的固态特性.
科学领域:
- 有机化学 有机化学
- 材料科学 材料科学 材料科学
- 摄影化学的使用.
背景情况:
- 9,10-Dihydro-9,10-diboraanthracene (DBA) 作为一个多功能支架,用于创建合有机光因子.
- 开发具有可调节光学特性的新型有机光因子对于先进的光电子应用至关重要.
研究的目的:
- 合成和描述新型的C-化和C-替代的9,10-二-9,10-二boraanthracene衍生物.
- 调查结构修改对光物理性质的影响,特别是排放波长和固态性能.
- 为了比较DBA衍生品的光电子特性与它们的同结构甲烯对应物.
主要方法:
- 通过凝结反应和电友溶剂激活对称和不对称的C-化DBAs的合成.
- 在现场的NMR光谱学以阐明反应机制并确定关键中间体.
- 使用格里纳德试剂和斯蒂尔型C-C合反应的DBA支架的功能化.
- 由此产生的化合物在溶液和固态中的光物理特性.
主要成果:
- 成功合成了稳定在空气和水中的C-化9,10-dimesityl-DBAs.
- 开发了,2-和p-N,N-diphenylaminophenyl衍生物,其可调节的发射范围从蓝色 (469 nm) 到绿色 (540 nm) 和红色 (594 nm).
- 与烯相比,DBA核心表现出优越的电子接受能力.
- DBA衍生品在可见范围 (蓝色到色) 中发射,与人不同 (近紫外线到蓝色).
- 对于DBA,观察到显著更高的固态量子产量.
结论:
- DBA 架构是设计可调节的,固态排放有机材料的高效平台.
- 结构修改,包括捐赠组的数量和位置,允许精确控制排放颜色.
- 基于DBA的光灯在排放范围和固态效率方面,相对于 antracen 类型的光灯具有优势.
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