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Circularly Polarized Luminescence on dinuclear Tb(III) and Eu(III) complexes with (S-) and (R-) 2-Phenylpropionate

Abstract

The reaction of Ln(NO3)2·6H2O (Ln = Tb and Eu) with (S)-(+)-2-Phenylpropionic acid (S-HL) and 1,10-phenanthroline (phen) in EtOH/H2O allows the isolation of the dinuclear chiral compounds of formula [Ln2(S-L)6(phen)2]·2.5·S-HL in which Ln = Tb (S-1), Ln = Eu (S-2). The same synthesis by using (R)-(-)-2-Phenylpropionic acid (R-HL) instead of (S)-(+)-2-Phenylpropionic acid allows the isolation of the enantiomeric compounds with formula [Ln2(R-L)6(phen)2] ·2.5·R-HL where Ln = Tb (R-1), Ln = Eu (R-2). All compounds show sensitized luminescence. Luminescence study, including Circularly Polarized Luminescence spectra of the four compounds, is reported. The magnetic behavior of S-1 and S-2 is also reported.

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Publication details

The article was received on 12 Dec 2016, accepted on 19 Apr 2017 and first published on 19 Apr 2017


Article type: Paper
DOI: 10.1039/C6DT04686J
Citation: Dalton Trans., 2017, Accepted Manuscript
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    Circularly Polarized Luminescence on dinuclear Tb(III) and Eu(III) complexes with (S-) and (R-) 2-Phenylpropionate

    B. Casanovas, F. Zinna, L. Di Bari, M. S. El Fallah, M. Font-Bardía and R. Vicente, Dalton Trans., 2017, Accepted Manuscript , DOI: 10.1039/C6DT04686J

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