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Stimuli-Responsive Supramolecular Assembly between Inverted cucurbit[7]uril and Hemicyanine Dye

Abstract

The effect of inverted curcurbit[7]uril (iQ[7]) on the binding mode of 2-(4-(dimethylamino)styryl)-1-methylpyridinium (DASPMI) was determined in this study. A large fluorescence enhancement of DASPMI was realized by the formation of an inclusion complex with iQ[7]. A 1:1 inclusion complex was determined through UV absorption and fluorescence spectroscopy, 1H nuclear magnetic resonance (NMR) spectroscopy, matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS), and isothermal titration calorimetry (ITC) under different pH values. Additionally, we also devised a method for the controlled release of DASPMI from the iQ[7] macrocycle by adding α,α'-diamino-p-xylene.

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Publication details

The article was received on 05 Jul 2018, accepted on 07 Aug 2018 and first published on 08 Aug 2018


Article type: Paper
DOI: 10.1039/C8NJ03344G
Citation: New J. Chem., 2018, Accepted Manuscript
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    Stimuli-Responsive Supramolecular Assembly between Inverted cucurbit[7]uril and Hemicyanine Dye

    X. Xiao, Z. Gao, J. Kan, Z. Tao and B. Bian, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ03344G

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