We describe the synthesis, electrochemistry, photophysics, computational analysis and electrochemiluminescence (ECL) of a new series of oxazaborine molecules. Our strategy is based on the modification of the coumarin‐oxazaborine moiety to be directly joined through a carbon‐carbon bond, forming donor‐acceptor (D‐A) chromophores. These new structures substantially change the electron distribution as well as photophysical and electrochemical behaviors with a strong effect on the final quantum yield. For all compounds, we observed a very high PL quantum yield (70–75 %) and relatively accessible first oxidation and first reduction. All of these characteristics allow us to study the ECL of these molecules, obtaining a very high ECL efficiency that is four times higher than the standard dyes, opening the application of oxazaborine as bright ECL luminophores.

中文翻译：

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香豆素基恶唑啉的光物理和电化学发光

我们描述了一系列新的恶唑aborine分子的合成，电化学，光物理，计算分析和电化学发光（ECL）。我们的策略是基于将香豆素-恶唑布尔星部分进行修饰，使其通过碳-碳键直接连接，形成供体-受体（D-A）发色团。这些新结构大大改变了电子分布以及光物理和电化学行为，对最终量子产率产生了很大影响。对于所有化合物，我们观察到非常高的PL量子产率（70-75％），并且相对容易获得的第一氧化和第一还原。所有这些特征使我们能够研究这些分子的ECL，获得非常高的ECL效率，是标准染料的四倍，