School of Chemistry, University of New South Wales, Sydney, Australia.
Chemistry. 2018 Aug 1;24(43):10959-10965. doi: 10.1002/chem.201801956. Epub 2018 Jul 3.
Tropylium ions possess an interesting combination of structural stability and chemical reactivity due to its Hückel aromaticity and its positively charged polyene nature, respectively. Herein we exploit the chemical versatility and unique structural properties of the tropylium ion to derive a family of novel push-pull organic dyes with strong absorption in the visible range via simple and practical synthetic protocols. These stable organic dyes are highly stimuli-responsive, as demonstrated by their sensitivity towards solvent, pH change, redox reaction, Lewis base and counterion, which marks them as potentially useful compounds for opto-electronic applications.
由于 tropylium 离子具有 Hückel 芳香性和正多烯性质，因此具有有趣的结构稳定性和化学反应性组合。在此，我们利用 tropylium 离子的化学多功能性和独特结构特性，通过简单实用的合成方案，衍生出一系列新型的推拉有机染料，这些染料在可见光区具有很强的吸收。这些稳定的有机染料对溶剂、pH 值变化、氧化还原反应、路易斯碱和抗衡离子具有高度的响应性，这表明它们可能是用于光电应用的有用化合物。
