Issue 41, 2020, Issue in Progress

A dual-sensitized luminescent europium(iii) complex as a photoluminescent probe for selectively detecting Fe3+

Abstract

A new luminescent EuIII complex, namely [Eu2(BTFA)4(OMe)2(dpq)2] (1), in which BTFA = 3-benzoyl-1,1,1-trifluoroacetone and dpq = dipyrido [3,2-d:2′,3′-f] quinoxaline, has been designed and synthesized by employing two different ligands as sensitizers. Crystal structure analysis reveals that complex 1 is composed of dinuclear EuIII units crystallized in the monoclinic P[1 with combining macron] space group. Notably, 1 exhibits high thermal stability up to 270 °C and excellent water stability. The photoluminescence property of the complex is investigated. Further studies show 1 can recognize Fe3+ ions with high selectivity from mixed metal ions in aqueous solution through the luminescence quenching phenomenon. Furthermore, the recyclability and stability of 1 after sensing experiments are observed to be adequate. By virtue of the superior stability, detection efficiency, applicability and reusability, the as-prepared EuIII complex can be a promising fluorescent material for practical sensing.

Graphical abstract: A dual-sensitized luminescent europium(iii) complex as a photoluminescent probe for selectively detecting Fe3+

Supplementary files

Article information

Article type
Paper
Submitted
28 Apr 2020
Accepted
19 Jun 2020
First published
25 Jun 2020
This article is Open Access
Creative Commons BY license

RSC Adv., 2020,10, 24244-24250

A dual-sensitized luminescent europium(III) complex as a photoluminescent probe for selectively detecting Fe3+

Y. Zhao, Y. Xu, B. Xu, P. Cen, W. Song, L. Duan and X. Liu, RSC Adv., 2020, 10, 24244 DOI: 10.1039/D0RA03821K

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