Energy transfer between Eu3+ and Nd3+ in near-infrared emitting beta-triketonate coordination polymers

Laura Abad Galan, Alexandre N. Sobolev, Brian W. Skelton, Eli Zysman-Colman, Mark I. Ogden, Massimiliano Massi

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Isomorphous -triketonate-based lanthanoid polymers containing tris(4-methylbenzoyl)methanide (mtbm) and Rb+ with formula {[Ln(Rb)(mtbm)(4)](2)}(n) (Ln = Eu3+ and Nd3+) have been synthesised and structurally characterised. The photophysical properties for the Nd3+ complex presented relatively long lifetimes and high quantum yields in comparison with analogous -diketonate complexes. Mixed lanthanoid complexes were also formed and their luminescence properties studied, with effective sensitisation of the F-4(3/2) of Nd(3+)via the D-5(0) of Eu3+, which is to the best of our knowledge the first example of Eu3+ to Nd3+ sensitisation in a structurally defined coordination complex or polymer.

Original languageEnglish
Pages (from-to)12345-12352
Number of pages8
JournalDalton Transactions
Issue number35
Publication statusPublished - 21 Sep 2018

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