Stable pillar [5] arene-based pseudo [1] rotaxanes formed in polar solution |
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| Authors: | Xuan Wu Lei Gao Junzhao Sun Xiao-Yu Hu Leyong Wang |
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| Institution: | Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China |
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| Abstract: | Mono-alkyl-functionalized pillar5] arenes P1,P2,and P3 were synthesized by click reaction,which exhibited different self-assembly behavior in polar solvent DMSO.Stable pseudo 1] rotaxane was formed by the self-complexation from P1 or P2,whereas,concentration-dependent pseudorotaxane structures were generated by P3 which bearing more flexible side chain.Interestingly,the obtained pseudo1] rotaxanes exhibited a dynamic fast assembly process upon adding NaBF4,resulting in the formation of Na+-induced pseudorotaxanes. |
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| Keywords: | Pillar [5] arene Pseudo [1] rotaxanes Dynamic self-assembly Na+-induced pseudorotaxanes Polar solution |
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