Propeller-shaped molecules based on a triphenylbenzene crux bearing three oligomeric phenylenevinylene branches have been designed; very large first-order hyperpolarisabilities (up to ∥β∥ = 800 10−30 esu) were obtained while maintaining wide transparency in the visible region by taking advantage and boosting of intramolecular charge transfer between the centre and the periphery.
Propeller-shaped molecules with giant off-resonance optical nonlinearities
J. Brunel, I. Ledoux, J. Zyss and M. Blanchard-Desce, Chem. Commun., 2001, 923 DOI: 10.1039/B101425K
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