trans-4-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide@cyclopentanocucurbit[6]uril as a fluorescent probe for anion recognition
SI YUAN CHENG XI NAN YANG ZHU TAO LIAN TONG WEI WEI WEI ZHAO DAO FA JIANG YAN MEI JIN JIE GAO PEI HUA MA
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The host–guest binding characteristics of cyclopentanocucurbit[6]uril (CyP6Q[6]) and cyanine dye trans-4-[4-(dimethylamino)styryl]-1-methylpyridinium iodide (t-DSMI) have been studied. The results show that CyP6Q[6] and t-DSMI form a 1:1 inclusion system, generating strong fluorescence. On this basis, the fluorescent probe t-DSMI@CyP6Q[6] has been constructed, and its anion recognition ability has been investigated. In a neutral environment, BF4-, H2PO4 -, and I- elicit obvious specific responses from the probe, since they have stronger binding forces. This probe shows greater sensitivity than the previously reported probe t-DSMI@HMeQ[6].
SI YUAN CHENG1 XI NAN YANG1 ZHU TAO1 LIAN TONG WEI2 WEI WEI ZHAO1 DAO FA JIANG1 YAN MEI JIN1 JIE GAO1 PEI HUA MA1
Volume 132, 2020
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