Synthesis and Nonlinearity of Triene Chromophores Containing the Cyclohexene Ring Structure

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• 作者：Susan Ermer ; Steven M. Lovejoy ; Doris S. Leung ; Hope Warren ; Christopher R. Moylan ; and Robert J. Twieg
• 刊名：Chemistry of Materials
• 出版年：1997
• 出版时间：June 1997
• 年：1997
• 卷：9
• 期：6
• 页码：1437 - 1442
• 全文大小：234K
• 年卷期：v.9,no.6(June 1997)
• ISSN：1520-5002

文摘

A series of conjugated donor-acceptor trienes in whichthe central double bond isincorporated into an unsaturated isophorone, verbenone, or chromonering has beensynthesized. In each case, the donor group consists of an amineand an aromatic orheterocyclic ring system, and the acceptor is the dicyanomethylidenegroup. The nonlinearoptical properties of each of the compounds has been measured andcorrelated with itsstructure. The dipole moments and molecular hyperpolarizabilitiesof these compounds,like those of other conjugated polyenes, are large enough to be used asthe active componentsof electrooptic polymers. Unlike other donor-acceptor polyenes,however, these compoundsexhibit the thermal stability required for suchapplications.