A triptycene-based bis(crown ether) host: complexation with both paraquat derivatives and dibenzylammonium salts.
[reaction: see text] A novel triptycene-based bis(crown ether) host (1) incorporating two dibenzo-24-crown-8 ether moieties has been synthesized. It can form not only a new bis[2]pseudorotaxane with dibenzylammonium salts but also stable clip-shaped complexes with paraquat derivatives. Moreover, the complexation process between 1 and the two classes of guests can be chemically controlled.
Han
Tao
T
Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
Chen
Chuan-Feng
CF
D043844:Crown Ethers / Q000138:chemical synthesis* / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008968:Molecular Conformation; D015394:Molecular Structure; D010269:Paraquat / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*
D043844:Crown Ethers; D000644:Quaternary Ammonium Compounds; C071087:dibenzo-24-crown-8; C007316:dibenzyldimethylammonium; D010269:Paraquat