Nanoarchitectures constructed from resulting polypseudorotaxanes of the β-cyclodextrin/4,4'-dipyridine inclusion complex with Co2+ and Zn2+ coordination centers
Six supramolecular polypseudorotaxanes (2-7) like the missing link have been constructed by coordination of the β-cyclodextrin/4,4'-dipyridine inclusion complex (1) wit...
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| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2011
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/92173 http://hdl.handle.net/10220/7036 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Six supramolecular polypseudorotaxanes (2-7) like the missing link have been constructed by
coordination of the β-cyclodextrin/4,4'-dipyridine inclusion complex (1) with cobalt chloride, cobalt acetate,
cobalt nitrate, zinc chloride, zinc acetate, and zinc nitrate, respectively, and investigated using 1H NMR
spectroscopy, circular dichroism, FT-IR, gel permeation chromatography, powder X-ray diffraction,
thermogravimetric and differential thermal analysis, transmission electron microscopy, and cyclic
voltammetry. The obtained results indicate that polypseudorotaxanes 2-7 could self-assemble to form
square or rodlike nanostructures. The counteranions play critical roles in the formation of the
polypseudorotaxane nanoarchitectures. Especially polypseudorotaxane 2 shows better electrochemical
property as compared with that of other polypseudorotaxanes 3-7, which may potentially be used as an
electroactive soft material. |
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