title: Five additional macrocycles that allow Na+ ion-templated threading of guest units featuring a single urea or amide functionality.
abstract: Five analogues of the macrocycle BPX26C6 are also capable of recognizing single urea and/or amide functionalities in the presence of templating Na(+) ions. We have unambiguously confirmed the formation of such [2]pseudorotaxane complexes in solution through syntheses of the corresponding [2]rotaxanes.
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, Republic of China. shchiu@ntu.edu.tw.
authors.forename: You-Han
authors.initials: YH
authors.lastname: Lin
authors.forename: Chien-Chen
authors.initials: CC
authors.lastname: Lai
authors.forename: Sheng-Hsien
authors.initials: SH
authors.lastname: Chiu
mesh_terms: D000577:Amides / Q000737:chemistry*; D007477:Ions; D047028:Macrocyclic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D066244:Proton Magnetic Resonance Spectroscopy; D043862:Rotaxanes / Q000138:chemical synthesis / Q000737:chemistry; D012964:Sodium / Q000737:chemistry*; D014508:Urea / Q000737:chemistry*
chemical_list: D000577:Amides; D007477:Ions; D047028:Macrocyclic Compounds; D043862:Rotaxanes; D014508:Urea; D012964:Sodium