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作为半径最小的阴离子,氟离子(F-)表现出高电负性和强碱性,因而具有特殊的化学性质。由于F-与人类健康和环境安全密切相关,因此它的识别与检测已引起了人们极大的关注。到目前为止,用于选择性检测F-的荧光化学传感器已有大量报道,这些传感器主要是基于有机硼化合物和氢键质子给体。与这些传感器相比,反应型传感器具有更高的选择性,并且更容易在水环境中实现F-检测。本文根据有机硅化合物的结构不同,分别综述了近年来基于硅醚、硅炔及其他有机硅化合物的反应型氟离子荧光化学传感器的合成研究进展,其中包括本课题组的一些研究工作。
As the smallest anion, fluoride ion (F-) shows high electronegativity and strong alkalinity and thus has special chemical properties. Since F- is closely related to human health and environmental safety, its recognition and detection have drawn great attention. To date, there have been numerous reports of fluorescent chemical sensors for the selective detection of F-, which are mainly based on organoboron compounds and hydrogen bond proton donors. Reactive sensors are more selective than these sensors and make F-detection easier in aqueous environments. Based on the different structure of organosilicon compounds, the recent progress in the synthesis of reactive fluoride ion fluorescence chemosensors based on silicon ethers, silicon alkynes and other organosilicon compounds are reviewed, including some of our research work.