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Indexed by:期刊论文

Date of Publication:2012-04-01

Journal:JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY

Included Journals:SCIE、Scopus

Volume:72

Issue:3-4

Page Number:481-486

ISSN No.:0923-0750

Key Words:Anion sensing; Acetate recognition; Colorimetric sensor; Induced-fit

Abstract:A simple pincer-shape anion receptor L1 containing amide-pyridinium as binding unit was synthesized and its anion binding properties were investigated by UV-Vis, NMR titration spectra and molecular simulation. L1 displayed better affinity toward AcO- ion with visible color change compared with other investigated anions, including F-, H2PO4 (-), Cl-, Br-, I-, NO3 (-) and HSO4 (-) ions. The selectivity was ascribed to the synergistic effects arising from hydrogen bonding, electrostatic interaction and induced-fit process.