title: Weakly associated TFPB anions are superior to PF6 anions when preparing (pseudo)rotaxanes from crown ethers and secondary dialkylammonium ions.
abstract: Making the right choice: Tetrakis(3,5-trifluoromethylphenyl)borate (TFPB) counter anions can facilitate the threading of dibenzylammonium (DBA(+)) ions through macrocycles in cases where the corresponding PF(6)(-) salts fail to exhibit complexation.
authors.affiliation: Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan, 10617 ROC.
authors.forename: Nai-Chia
authors.initials: NC
authors.lastname: Chen
authors.forename: Chun-Ju
authors.initials: CJ
authors.lastname: Chuang
authors.forename: Liang-Yun
authors.initials: LY
authors.lastname: Wang
authors.forename: Chien-Chen
authors.initials: CC
authors.lastname: Lai
authors.forename: Sheng-Hsien
authors.initials: SH
authors.lastname: Chiu
mesh_terms: D000838:Anions; D001881:Borates / Q000737:chemistry*; D043844:Crown Ethers / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D043862:Rotaxanes / Q000737:chemistry*
chemical_list: D000838:Anions; D001881:Borates; D043844:Crown Ethers; D000644:Quaternary Ammonium Compounds; D043862:Rotaxanes