A “Threading-Followed-by-Shrinking” Strategy for Rotaxane Synthesis
Date Issued
2012
Date
2012
Author(s)
Huang, Yin-Kai
Abstract
Part I：
Strategies for rotaxane synthesis such as “slippage”, “clipping”, “threading-followed-by-swelling”, “threading-followed-by-stoppering” and “threading-followed-by-shrinking” are reported. We hope to demonstrate that the “threading-followed-by-shrinking“ can also be achieved by metal-ion assisted through tandem reaction.
Part II：
The complexation of host and guest are influenced by the environment such as ion strength of counter-ion, polarity of solvent etc. We hoped to find suitable reaction to synthesize rotaxane in a weak hydrogen-bond system. A mild reaction was applied to interlock the macrocycle with the thread-like guest in the weak hydrogen-bond system to avoid possible interference accompanied by the reaction. Having this unique rotaxane in hand, we could study the bonding of the structure and discuss the application of the rotaxane.
Subjects
rotaxane
host-guest chemistry
supramolecular chemistry
non-covalent force
counter ion
Type
thesis
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