Self-assemblied Binding Mode of Cucurbit[6]uril with 2,2'-(Octane-1,8-diyl)dibenzimidazolium Dichloride

doi:10.3969/j.issn.0251-0790.2012.09.017

Abstract

Abstract:

The self-assemblied binding modes of cucurbit[6]uril(Q[6]) with 2,2'-(octane-1,8-diyl)dibenzimidazolium dichloride(SBO) was investigated by means of ¹H NMR, fluorescence emission and UV-Vis spectra. The experiment results revealed that the host Q[6] prefered to including the aromatic benzoimidazolyl moieties of the protonated SBO at a lower molar ratio of Q[6] to guest less than 1 in water medium, at higher molar ratios of Q[6] to guest or in water medium, a chain shape guest could be borne two Q[6] molecules and form a dumbbell shape inclusion complex. The study may provide information in drug delivery, designment of molecular knots, machines and switches.

Key words: Cucurbit[6]uril, 2,2'-(Octane-1,8-diyl)dibenzimidazolium dichloride, Self-assemblied binding mode

CLC Number:

O625

TrendMD:

YI Jun-Ming, XUE Sai-Feng, TAO Zhu. Self-assemblied Binding Mode of Cucurbit[6]uril with 2,2'-(Octane-1,8-diyl)dibenzimidazolium Dichloride[J]. Chem. J. Chinese Universities, 2012, 33(09): 1973.

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