Journal
ORGANIC LETTERS
Volume 15, Issue 18, Pages 4722-4725Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol402048n
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Funding
- National Basic Research Program [2013CB834502]
- National Natural Science Foundation of China [91027006, 21125417]
- Fundamental Research Funds for the Central Universities [2012QNA3013]
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Host-guest complexation between a pillar[5]arene with mono(ethylene oxide) substituents and paraquat was studied. We demonstrated that this pillar[5]arene can form a 1:1 complex with paraquat in solution and in the solid state. The formation of this complex was confirmed by proton NMR spectroscopy, electrospray ionization mass spectrometry, and single crystal X-ray analysis. Furthermore, this complexation can be reversibly controlled through the sequential addition and removal of Zn powder. The host substituent effect on the complexation ability was also addressed.
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