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Issue 4, 2001
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A simple, novel method for the preparationof polymer-tetherable, zwitterionic merocyanine NLO-chromophores

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A suite of polymer-ready nonlinear optical merocyanines has been synthesised and characterised. The tethering functionality—a vicinal dihydroxypropyl residue—is introduced onto the donor nitrogen of the chromophore precursor without the need for protection/deprotection steps, thereby giving ready access to potentially high Tg condensation polymer systems. An X-ray crystal structure determination on a representative chromophore 5 confirms the largely zwitterionic nature of these systems and experimental measurements of second-order nonlinear response [β(0)], by hyper-Raleigh scattering, indicate that a pyridylidene donor–quinomethide acceptor combination gives rise to the largest nonlinearity.

Graphical abstract: A simple, novel method for the preparation of , zwitterionic merocyanine NLO-chromophores

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The article was received on 16 Oct 2000, accepted on 25 Jan 2001 and first published on 02 Mar 2001

Article type: Paper
DOI: 10.1039/B008316J
Citation: J. Mater. Chem., 2001,11, 996-1002
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    A simple, novel method for the preparation of polymer-tetherable, zwitterionic merocyanine NLO-chromophores

    A. J. Kay, A. D. Woolhouse, G. J. Gainsford, T. G. Haskell, T. H. Barnes, I. T. McKinnie and C. P. Wyss, J. Mater. Chem., 2001, 11, 996
    DOI: 10.1039/B008316J

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