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Probing the effect of β-triketonates in visible and NIR emitting lanthanoid complexes

Abstract

An isomorphous series of lanthanoid complexes containing tribenzoylmethanide (tbm) and 1,10-phenanthroline (phen) ligands has been synthesised and structurally characterised. These complexes, formulated as [Ln(phen)(tbm)3] (Ln = Eu3+, Er3+ and Yb3+), were compared with analogous dibenzoylmethanide (dbm) [Ln(phen)(dbm)3] complexes to investigate the effect of changing β-diketonate to β-triketonate ligands on the photophysical properties of the complex. The photophysical properties for the Eu3+ complexes were similar for both systems, whereas a modest enhancement was observed for Yb3+ and Er3+ moving from the dbm to the tbm complexes. A detailed study of the NIR photophysical properites was achieved by adapting the integrating sphere method for the calculation of overal quantum yields in the solid state.

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Publication details

The article was received on 12 Mar 2018, accepted on 07 May 2018 and first published on 17 May 2018


Article type: Paper
DOI: 10.1039/C8DT00945G
Citation: Dalton Trans., 2018, Accepted Manuscript
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    Probing the effect of β-triketonates in visible and NIR emitting lanthanoid complexes

    L. Abad Galan, B. L. Reid, S. Stagni, A. N. Sobolev, B. W. Skelton, E. G. Moore, G. Hanan, E. Zysman-Colman, M. I. Ogden and M. Massi, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C8DT00945G

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