A Polymeric Pseudorotaxane Constructed from Cucurbituril and Aniline, and Stabilization of Its Radical Cation

Abstract

Picking up the thread: A polypseudorotaxane 1 with a regular one‐dimensional linear structure has been constructed in satisfactory yield from cucurbit[7]uril and polyaniline (PANI). The complexation with cucurbituril not only enhances the water solubility of the PANI (see picture; after 10 h), but also effectively stabilizes its radical cation form, that is, the conductive doped form, as shown by EPR spectroscopy.

Electrically insulated molecular wires

“…1.5 nm) of PANi/CB [7] fibres are consistent with the outer diameter of CB [7]. A schematic possible structure of PANi-CB [7] is presented in Figure.4,e) [55]. Therefore, the interchain interactions could be avoided by keeping the chains at a distance determined by the thickness of macrocycles, and the electronic properties could be studied for a single conjugated chain.…”

“…A polymeric pseudorotaxane based on cucurbit [7]uril and polyaniline has been reported by Liu et al [55 ]. Using NMR the authors calculated that every repeating unit contains three aniline units and one CB [7] macrocycle, as shown in Scheme 9 [55].…”

“…Using NMR the authors calculated that every repeating unit contains three aniline units and one CB [7] macrocycle, as shown in Scheme 9 [55].…”

Supramolecular Self-assemblies of Cucurbit[7,8]uril with Certain 1,n-Alkylene-bismethylpyridinum Dibromide

“…The experimental results revealed that it was different in the interaction models of the formed host-guest inclusion complexes between the cucurbit [7]uril with the four guests and the cucurbit [8]uril with the four guests. The cucurbit [7]uril preferred to thread on the linear guests and formed pseudorotaxane-like or "dumbbell"-like inclusion complexes, while the cucurbit [8]uril preferred to included whole body of a guest in a fold manner due to having a larger cavity. Keywords cucurbit [7,8] [27] .…”

“…The cucurbit [7]uril preferred to thread on the linear guests and formed pseudorotaxane-like or "dumbbell"-like inclusion complexes, while the cucurbit [8]uril preferred to included whole body of a guest in a fold manner due to having a larger cavity. Keywords cucurbit [7,8] [27] . 为了进一…”