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Rapid naked-eye luminescence detection of carbonate ion through acetonitrile hydrolysis induced europium complexes

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Abstract

The in situ hydrolysis of acetontrile to acetate was utilized to construct crystal structures of lanthanide complexes for two analogous ligands, including dimeric [Ln2(Hhpip)2(OAc)6] (Ln = Eu, Tb, Dy; Hhpip = 2-(2-hydroxyphenyl)imidazo[4,5-f][1,10]phenanthroline) and two-dimensional polymeric [Tb(hnpip)(OAc)2]n, where hnpip is the hydroxyl-deprotonated form of 2-(2-hydroxy-5-nitrophenyl)imidazo[4,5-f][1,10]phenanthroline acting as a tridentate bridging ligand. The former had a [Ln2(μ-η12-OAc)2(μ-η11-OAc)22-OAc)2] subunit, whereas in the latter, [Tb2(μ-η12-OAc)2] and [Tb2(μ-η11-OAc)2] subunits are alternately aligned. The DMSO solution of [Eu2(Hhpip)2(OAc)6] and [Eu2(pip)2(OAc)6] (pip is 2-phenylimidazo[4,5-f][1,10]phenanthroline) were found to have a specific and prompt photoluminescence response to CO32− with significant emission colour change. The limit of detection was about 10 μM, depending on the complex and wavelength monitored.

Graphical abstract: Rapid naked-eye luminescence detection of carbonate ion through acetonitrile hydrolysis induced europium complexes

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Publication details

The article was received on 21 Aug 2018, accepted on 30 Oct 2018 and first published on 31 Oct 2018


Article type: Paper
DOI: 10.1039/C8CE01414K
Citation: CrystEngComm, 2018, Advance Article
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    Rapid naked-eye luminescence detection of carbonate ion through acetonitrile hydrolysis induced europium complexes

    Y. Lu, J. Peng, X. Zhou, J. Wu, Y. Ou and Y. Cai, CrystEngComm, 2018, Advance Article , DOI: 10.1039/C8CE01414K

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