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Journal of fluorescence

A Fluoro-Chromogenic Sensor Based on Organic Molecular Framework for Cu(2+) and F(-) in Aqueous Soluble DMSO.


PMID 27730418

Abstract

The 2,2'-dinaphtholazobenzene molecular framework (P) was designed, synthesized and characterized. Its absorption and fluorescence properties revealed that P is a dual sensor for copper ions (Cu(2+)) and fluoride ions (F(-)) in DMSO. The colorimetric activities were clearly visible by naked eye upon the addition of the two ions. Fluorescence quenching and enhancement were observed when Cu(2+) and F(-) ions were added respectively. Density Functional Theory (DFT) calculations were carried out to provide an insight into the interaction of guest ions (Cu(2+) and F(-)) with P, and to explain how the molecular orbitals were affected. Graphical Abstract ᅟ.

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