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

Laura Galán, Brodie Reid, Stefano Stagni, Alexandre Sobolev, Brian Skelton, Evan Moore, Garry Hanan, Eli Zysman-Colman, Mark Ogden, Massimiliano Massi

Research output: Contribution to journalReview articlepeer-review

8 Citations (Scopus)
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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.
Original languageEnglish
Pages (from-to)7956-7964
Number of pages9
JournalDalton Transactions
Volume47
Issue number24
Early online date17 May 2018
DOIs
Publication statusPublished - 28 Jun 2018

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