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

doi:10.1039/C8DT01491D

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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Abstract

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 language	English
Pages (from-to)	10415-10419
Number of pages	5
Journal	Dalton Transactions
Volume	47
Issue number	31
Early online date	27 Jun 2018
DOIs	https://doi.org/10.1039/C8DT01491D
Publication status	Published - 21 Aug 2018

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10.1039/C8DT01491DLicence: CC BY

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Cite this

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abstract = "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.",

author = "Ahmed Al-Yasari and Philip Spence and {El Moll}, Hani and {Van Steerteghem}, Nick and Horton, {Peter N.} and Brunschwig, {Bruce S.} and Koen Clays and John Fielden",

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AU - Al-Yasari, Ahmed

AU - Spence, Philip

AU - El Moll, Hani

AU - Van Steerteghem, Nick

AU - Horton, Peter N.

AU - Brunschwig, Bruce S.

AU - Clays, Koen

AU - Fielden, John

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AB - 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.

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DO - 10.1039/C8DT01491D

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