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A suite of new nonlinear optical chromophores containing an indoline donor and azo linker has been synthesized in high yields. The methodology used allows for the incorporation of various acceptor systems, the ready isolation of the target compounds and access to materials with excellent thermal stabilities (viz = T d 220–270 °C). The first hyperpolarizabilities of the compounds were measured...
A series of indoline-π-acceptor chromophores has been synthesized and the members first hyperpolarizabilities measured to investigate the effect of conjugation length, the use of various substituents and configurational locking on the nonlinear optical response. While increasing the length of the conjugated interconnect enhances the optical nonlinearity, ring locking was found to have little effect,...
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