Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2011-06-01

Journal: JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY

Included Journals: SCIE、Scopus

Volume: 70

Issue: 1-2

Page Number: 115-119

ISSN: 0923-0750

Key Words: Amide-pyridinium; Tripodand; Anion sensing; Conformational change

Abstract: A new tripodal receptor for anion sensing based on amide-pyridinium as recognition site and nitro-benzene as signaling unit was designed and successfully synthesized. This receptor showed high selectivity and strong binding affinity toward AcO(-) over the investigated anions, especially over H(2)PO(4) (-). Addition of AcO(-) induced clear color change of solution from colorless to yellow, realizing the "naked-eye" detection. UV-Vis and (1)H NMR experiments indicated the selectivity might origin from the synergistic effects arising from hydrogen bonding, electrostatic interactions and conformational change.