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TitleA simple, novel method for the preparation of polymer-tetherable, zwitterionic merocyanine NLO-chromophores
Publication TypeJournal Article
Year of Publication2001
AuthorsKay, A.J., Woolhouse A.D., Gainsford G.J., Haskell T.G., Barnes T.H., McKinnie I.T., and Wyss C.P.
JournalJournal of Materials Chemistry
Pagination996 - 1002
Date Published2001
ISSN09599428 (ISSN)
Keywordsampholyte, article, chemical modification, chromatophore, crystal structure, merocyanine, nonlinear system, optical rotation, polymer, Polymerization, quinone derivative, synthesis
AbstractA 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.

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