Donor-acceptor organo-imido polyoxometalates: high transparency, high activity redox-active NLO chromophores

We show that polyoxometalates (POMs) are an excellent redox-active acceptor on which to base high performance 2 nd order non-linear optical (NLO) chromophores. This is demonstrated through three new organoimido-Lindqvist derivatives with HRS β 0 -values exceeding those of any dipolar organic system...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2016-02, Vol.45 (7), p.2818-2822
Main Authors: Al-Yasari, Ahmed, Van Steerteghem, Nick, El Moll, Hani, Clays, Koen, Fielden, John
Format: Article
Language:English
Subjects:
Acetal resins
Chromophores
Derivatives
Nonlinearity
Polyoxometallates
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Summary:We show that polyoxometalates (POMs) are an excellent redox-active acceptor on which to base high performance 2 nd order non-linear optical (NLO) chromophores. This is demonstrated through three new organoimido-Lindqvist derivatives with HRS β 0 -values exceeding those of any dipolar organic system with comparable donor, π-system and absorption profile. Thus, organoimido POMs may provide a new generation of high performance, high transparency, and potentially redox-switchable NLO materials. Organoimido polyoxometalates are a powerful new class of acceptor for non-linear optics. As a basis for donor-acceptor systems, they offer an excellent transparency/non-linearity trade-off and break through empirical performance limits for comparable organic materials.
ISSN:1477-9226
1477-9234
DOI:10.1039/c6dt00115g