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Indexed by:期刊论文

Date of Publication:2011-06-01

Journal:JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY

Included Journals:Scopus、SCIE

Volume:70

Issue:1-2

Page Number:115-119

ISSN No.: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.