1,8-Diamidocarbazoles: an easily tuneable family of fluorescent anion sensors and transporters
作者:Krzysztof M. Bąk、Krzysztof Chabuda、Helena Montes、Roberto Quesada、Michał J. Chmielewski
DOI:10.1039/c8ob01031e
日期:——
carbazole fluorophore, they are also sensitive turn-on fluorescent sensors for H2PO4− and AcO−, with a more than 15-fold increase in fluorescence intensity upon binding. Despite relatively weak chloride affinity, some of the diamidocarbazoles have also been shown, for the first time, to be very active chloride transporters through lipid bilayers. The binding, sensing and transport properties of these receptors
描述了广泛,合理设计的一系列1,8-二氨基咔唑和1,8-二氨基-3,6-二氯咔唑的双酰胺衍生物的合成,结构和阴离子识别特性。尽管结构简单且仅存在三个氢键供体,但此类化合物还是DMSO + 0.5%H 2 O中氧阴离子的强而有选择性的受体。由于具有咔唑荧光团,它们还是H 2的灵敏开启荧光传感器PO 4 -和ACO -结合后荧光强度增加超过15倍。尽管氯化物亲和力相对较弱,但某些二酰胺基咔唑也首次被证明是通过脂质双层的非常活跃的氯化物转运蛋白。这些受体的结合,感测和转运特性可以通过其烷基侧臂的长度和支化程度通常被忽视的变化而容易地调节。总体而言,这项研究表明,1,8-二氨基咔唑结合单元是开发荧光传感器和阴离子转运蛋白的非常有前途且综合用途广泛的平台。