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Inorganic and Nano-Metal Chemistry Volume 48, 2018 - Issue 9
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Articles

A novel rare-earth nitronyl nitroxide radical complex as a high-efficiency sensor for Cr3+ and Cr2O72− ions in aqueous solutions

Yue-Ying YuanCollege of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, P. R. China;
,
Yu-Jun SunCollege of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, P. R. China;
,
Peng-Jing LiuCollege of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, P. R. China;
,
Chen-Xi ZhangCollege of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, P. R. China; ;Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin, P. R. China; Correspondence[email protected]
&
Qing-Lun WangKey Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, P. R. China; ;College of Chemistry, Nankai University, Tianjin, P. R. China
Pages 454-460 | Received 28 May 2018, Accepted 02 Jan 2019, Published online: 11 Mar 2019
 
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Abstract

In this article, a new complex with formula [Eu(hfac)3(NITPh-DOMe)2] (1) (hfac =  hexafluoroacetylacetonate, NITPh-DOMe =2-(3′,4′-dioxylmethylene-phenyl)-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxide) has been successfully synthesized. Central Eu(III) ions of complex 1 are eight coordinated by two NITPh-DOMe radicals and three hexafluoroacetylacetonate ligands. The luminescent explorations show that complex 1 with high sensitivity, selectivity, almost linear at low concentration and the low detection limit for detection of Cr3+ (1 μM) and Cr2O72− (0.1 μM) ions in aqueous solutions.

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 21371104, 20771081, 21101096, and 21471084) and Laboratory Innovation Fund (30003) of Tianjin University of Science and Technology.

Supplementary information

CCDC Number 1830897 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge at www.ccdc.cam.ac.uk/conts/retrieving.html or from the Cambridge Crystallographic Data Center, 12, Union Road, Cambridge CB2 1EZ, UK; fax: (internet) +44-1223/336033; E-mail: [email protected].

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