Complexation of a pentiptycene-based tweezer-like receptor with paraquat derivatives: ion-controlled binding and release of the guests.
A new tweezer-like receptor containing a pentiptycene unit and a benzene ring linked by two crown ether chains has been synthesized. It could form stable complexes with paraquat derivatives with different functional groups in solution and in the solid state. It was found that the complexes dissociated upon two one-electron reduction of the bipyridinium ring. Moreover, binding and release of the guest molecules could also be easily controlled by the addition and removal of potassium ion.
Cao
Jing
J
Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Lu
Hai-Yan
HY
You
Xiao-Jun
XJ
Zheng
Qi-Yu
QY
Chen
Chuan-Feng
CF
D000873:Anthracenes / Q000138:chemical synthesis* / Q000737:chemistry*; D001665:Binding Sites; D043844:Crown Ethers / Q000737:chemistry; D018360:Crystallography, X-Ray; D007477:Ions / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure; D010269:Paraquat / Q000031:analogs & derivatives / Q000737:chemistry*; D013237:Stereoisomerism
D000873:Anthracenes; D043844:Crown Ethers; D007477:Ions; C545156:pentiptycene; D010269:Paraquat