基于氧活性和光二烯基的固体等边三角形的离散二次数
Siva Krishna Mohan Nalluri1, Jiawang Zhou1,2, Tao Cheng3
1Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.
Journal of the American Chemical Society
|December 13, 2018
概括
研究人员使用二胺 (PDI) 和二胺 (NDI) 单位开发了刚性,性有机三角形. 这些材料克服了固态火,显示了高光和多重氧化还原状态的光电子应用.
科学领域:
- 有机材料科学
- 光学和光电子
- 超分子化学
背景情况:
- 具有多个氧化还原状态的刚性共价光学有机材料对于有机电子和光子学至关重要.
- 二胺 (PDI) 光体具有高光度,但在固态状态下受到聚合引起的排放火.
研究的目的:
- 设计和合成含有PDI和 pyromellitic diimide (PMDI) 或 naphthalene diimide (NDI) 单位的奇拉等三角形.
- 研究这些新型三角结构的光学,电子和磁性特性.
- 解决PDI衍生品中固态排放灭的挑战.
主要方法:
- 用 PDI,PMDI 或 NDI 单位合成形等三角形.
- 使用光学光谱,单晶X射线衍射 (XRD) 和循环电压测量进行表征.
- 计算机建模以了解电子和光学属性.
主要成果:
- 用PDI和NDI/PMDI单位合成的刚性三角形分子.
- 通过XRD在固体状态下观察到离散的,几乎面对面的PDI-PDI π-二极体.
- 在溶液中获得高光量子产量,具有显著的固态光.
- 在含有NDI和PDI的三角形中证明了优异的分子内能量传递.
- 通过循环电压测量证实了多个可访问和可逆的氧化还原状态.
结论:
- 设计的刚性三角结构有效地减轻了固态聚合引起的火.
- 这些材料对分子光电子设备具有有前途的光发光和氧化还原特性.
- 这项研究为开发先进的手术有机材料提供了途径.
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