Study On Rotaxane And Catenanes Molecules Assembled With Phenanthroline Crown Ether

In this thesis,we take the first subject generation of supramolecular system---crown ether and its derivatives as the central,utilizing its outstanding selection of complexation in supramolecular systems,by self-assembly process,synthesized a controllability supramolecular rotaxane with dual binding site.Also synthesized a oligomer got together with pseudorotaxanes.In this thesis,we designed and synthesized a pH controlled and photoelectric controlled supramolecular---[2] rotaxanes.It consists of a main crown ether molecule containing ruthenium complexes and one containing secondary ammonium ions and amethyst double binding sites in the linear assembled dumbbell-shaped molecule.This supramolecular by adjusting the pH to control crown ether molecules subject to change sites,which play a shuttle effect.It may also make use of the optical properties of the crown ether molecule ruthenium complexes,to control molecular shuttle.We also designed and synthesized a molecule containing not only the main crown ether molecules,but also contains a secondary ammonium ion complexation sites guest molecules.It may form a cyclic rotaxane molecule by self-assembly process between the two molecules.It can also form a pseudorotaxanes by self-assembly process between multiple molecules.With adding acid-base or ions to the formation of supramolecular systems,to control the rotaxane or pseudorotaxanes supramolecules' self-assembly and self-dissociation process.And the self-assembly and self-dissociation process are all characterized and certificated by nuclear magnetic resonance spectra,fluorescence spectroscopy,UV-visible spectroscopy and scanning electron microscopy analysis.In the end,the results of the study are summarized in this paper.