The synthesis and second-order nonlinear optical properties of acceptor-substituted biologically derived β-apo-8′-carotenal compounds are reported; electric field-induced second harmonic generation (EFISH) measurements give values of β(0) which are 2–6 times greater than for 4-N,N-dimethylamino-4′-nitrostilbene (DANS).
S. Gilmour, S. R. Marder, B. G. Tiemann and L. Cheng, J. Chem. Soc., Chem. Commun., 1993, 432 DOI: 10.1039/C39930000432
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