Extended conjugated borenium dimers via late stage functionalization of air-stable borepinium ions
Extended conjugated borenium dimers via late stage functionalization of air-stable borepinium ions
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DOI：
10.1039/d0cc02514c
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发表时间：
2020-05-11
影响因子：
4.9
通讯作者：
Jakle, Frieder
中科院分区：
文献类型：
--
作者：
Adachi, Yohei;Arai, Fuka;Jakle, Frieder
高度缺电子的有机硼离子在共轭材料中的应用仍然很少，因为它们对空气和水分的稳定性低。我们在这里报告的制备苯并[d]二噻吩并[B，f]borepinium离子作为空气稳定的π-共轭杂环和它们的转化成第一个二聚borenium阳离子，表现出非常低的LUMO和增强的荧光作为延长共轭的结果。
Applications of highly electron-deficient organoborenium ions in conjugated materials remain scarce due to their low stability toward air and moisture. We report here the preparation of benzo[d]dithieno[b,f]borepinium ions as air-stable pi-conjugated heterocycles and their conversion into the first dimeric borenium cations, which exhibit very low lying LUMOs and enhanced fluorescence as a result of extended conjugation.