Fine-tuning polyoxometalate non-linear optical chromophores: a molecular electronic “Goldilocks” effect

Ahmed Al-Yasari, Philip Spence, Hani El Moll, Nick van Steerteghem, Peter N. Horton, Bruce S. Brunschwig, Koen Clays, John Fielden

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A new aryl-imido polyoxometalate non-linear optical chromophore (POMophore) with a diphenylamino donor group attains the highest βzzz, 0 value (196 × 10−30 esu by Hyper-Rayleigh Scattering, HRS), and best transparency/non-linearity trade off yet for such materials. Stark spectroscopic and DFT investigation of this compound, plus NMe2 and carbazole analogues, show that its high performance results from a combination of strongly dipolar electronic transitions, and strong electronic communication across the π-system.
Original languageEnglish
Pages (from-to)10415-10419
Number of pages5
JournalDalton Transactions
Issue number31
Early online date27 Jun 2018
Publication statusPublished - 21 Aug 2018

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