title: A triptycene-based bis(crown ether) host: complexation with both paraquat derivatives and dibenzylammonium salts.
abstract: [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.
authors.affiliation: Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Han
authors.forename: Chuan-Feng
authors.initials: CF
authors.lastname: Chen
mesh_terms: 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*
chemical_list: D043844:Crown Ethers; D000644:Quaternary Ammonium Compounds; C071087:dibenzo-24-crown-8; C007316:dibenzyldimethylammonium; D010269:Paraquat