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[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Redox-responsive complexation between a pillar[5]arene with mono(ethylene oxide) substituents and paraquat
Xiaodong Chi1, Min Xue, Yong Yao
1Center for Chemistry of High-Performance and Novel Materials, Department of Chemistry, Zhejiang University , Hangzhou, Zhejiang 310027, PR China.
Abstract:
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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