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 +, Mg 2+, Ca 2+, Fe 3+, Cu 2+ and Zn 2+. The mechanism of recognition was studied with 1H NMR, UV–vis spectra and emission spectra. The receptor may be applied to sense lanthanide ions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
