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首页> 外文期刊>Chemistry: A European journal >Spectroscopic response of ferrocene derivatives bearing a BODIPY moiety to water: A new dissociation reaction
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Spectroscopic response of ferrocene derivatives bearing a BODIPY moiety to water: A new dissociation reaction

机译：带有BODIPY部分的二茂铁衍生物对水的光谱响应：新的离解反应

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Ferrocence and its derivatives have long been known to be a class of stable organometallic compounds, and their dissociation usually occurs under harsh conditions. Here we report a new type of ferrocene derivatives, 4,4-difluoro-8-ferrocenyl-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene and 4,4-difluoro-2,6-diethyl-8-ferrocenyl-1,3,5,7-tetramethyl-4-bora-3a, 4a-diaza-s-indacene, which surprisingly can hydrolyze under mild conditions. These two derivatives, initially developed as donor-acceptor probes for reactive oxygen species by incorporating the electron donor of ferrocene as a quencher into the fluorophore of BODIPY (boron dipyrromethene difluoride), barely emit fluorescence. Upon reaction with H _2O under the irradiation of natural light at room temperature, however, both of the probes display a dramatic color change and fluorescence retrievement. Detailed experimental results reveal that the reaction of the probes with H _2O leads to the removal of a cyclopentadiene unit and iron(II), yielding a BODIPY derivative that retains the other cyclopentadiene unit and shows a large fluorescence enhancement (over 100-fold). Moreover, the increase in fluorescence intensity is directly proportional to microamount of water, and the presence of both light and H _2O is indispensable in the reaction, which makes the present system of great potential not only for determining water but also for forming a AND logic gate. Most importantly, the present mild dissociation reaction may give a new insight into the stability of ferrocene and its derivatives. Surprising hydrolysis: A new type of ferrocene derivative is reported, which surprisingly can hydrolyze under mild conditions. Upon reaction with H _2O under the irradiation of natural light at room temperature, these derivatives display a dramatic color change and fluorescence retrievement. The present mild dissociation reaction may give a new insight into the stability of ferrocene and its derivatives.
机译：长期以来，人们已经知道铁茂铁及其衍生物是一类稳定的有机金属化合物，它们的解离通常发生在恶劣的条件下。在这里，我们报告了一种新型的二茂铁衍生物，即4,4-二氟-8-二茂铁基-1,3,5,7-四甲基-4-硼3a-3a，4a-二氮杂-s-茚并四烯和4,4-二氟- 2,6-二乙基-8-二茂铁基-1,3,5,7-四甲基-4-硼3a，4a-二氮杂-s-茚并二烯令人惊讶地可以在温和的条件下水解。最初通过将二茂铁的电子供体作为猝灭剂掺入BODIPY（二氟硼化二亚甲基二甲叉基）的荧光团中，这两种衍生物最初被开发为活性​​氧的供体-受体探针。然而，在室温下在自然光照射下与H _2O反应时，两种探针均显示出显着的颜色变化和荧光恢复。详细的实验结果表明，探针与H _2O的反应导致环戊二烯单元和铁（II）的去除，产生保留了另一个环戊二烯单元并显示出较大荧光增强（超过100倍）的BODIPY衍生物。而且，荧光强度的增加与水的微量成正比，并且光和H _2O的存在在反应中必不可少，这使得本系统不仅具有确定水的能力，而且具有形成AND逻辑的潜力。门。最重要的是，目前的轻度解离反应可能会为二茂铁及其衍生物的稳定性提供新的见解。令人惊讶的水解：据报道，一种新型的二茂铁衍生物可以在温和的条件下水解。在室温下自然光照射下与H _2O反应时，这些衍生物显示出显着的颜色变化和荧光恢复。目前的轻度解离反应可能会为二茂铁及其衍生物的稳定性提供新的见解。

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