Article ID Journal Published Year Pages File Type
5226419 Tetrahedron 2006 7 Pages PDF
Abstract

The synthesis and complexing properties of a calix[4]arene derivate (6) carrying two spirobenzopyran moieties are described. The addition of lanthanide ions resulted in significant UV-vis spectral shifts (68-84 nm) in visible region. It indicates that the synthetic receptor can recognize lanthanide ions by naked eyes over other cations including Na+, K+, Mg2+, Ca2+, Fe3+, Cu2+ and Zn2+. The mechanism of recognition was studied with 1H NMR, UV-vis spectra and emission spectra. The receptor may be applied to sense lanthanide ions.

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Physical Sciences and Engineering Chemistry Organic Chemistry
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