A Facile Strategy for the Construction of Purely Organic Optical Sensors Capable of Distinguishing D2O from H2O
A Facile Strategy for the Construction of Purely Organic Optical Sensors Capable of Distinguishing D2O from H2O
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构建能够区分 D2O 和 H2O 的纯有机光学传感器的简单策略
DOI：
10.1002/anie.201900806
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Lu Zhiyun
中科院分区：
文献类型：
--
作者：
Luo Yanju;Li Chuan;Zhu Wencheng;Zheng Xujun;Huang Yan;Lu Zhiyun
由于H_2O和D_2O的化学性质十分相似，D_2O光学传感器的合理分子设计至今尚未实现。现在，由于D_2O和H_2O之间的酸性略有不同，具有适当pKa值的带有OH基团的纯有机发色团显示出对D_2O和H_2O的明显不同的光学响应性质。这一发现为构建D2 O光学传感器提供了一种新的简便策略。通过该策略，成功制备了NIM-2F的比率比色D2 O传感器和AF的比色/荧光双通道D2 O传感器。NIM-2Fan和AF不仅可以通过肉眼定性区分D2 O和H2O，而且可以定量检测D2 O中的H2O含量。
Owing to the quite similar chemical properties of H2O and D2O, rational molecular design of D2O optical sensors has not been realized so far. Now purely organic chromophores bearing OH groups with appropriate pKavalues are shown to display distinctly different optical responding properties toward D2O and H2O owing to the slight difference in acidity between D2O and H2O. This discovery is a new and facile strategy for the construction of D2O optical sensors. Through this strategy, ratiometric colorimetric D2O sensor ofNIM‐2Fand colorimetric/fluorescent dual‐channel D2O sensor ofAFwere acquired successfully. BothNIM‐2FandAFcan not only qualitatively distinguish D2O from H2O by the naked eye, but also quantitatively detect the H2O content in D2O.